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Conference asdg::cmp

Title:CMP
Notice:Welcome to the CMP notesfile
Moderator:FABSIX::B_TOWERLLE
Created:Tue Oct 31 1995
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:94
Total number of notes:6381

37.0. "CMP.C1-7 EE/PE PASSDOWNS" by STRATA::TDYER () Fri Jul 26 1996 16:21

    
    THIS NOTE IS FOR CMP.C1-7 PASSDWONS, THE 1ST WESTECH W-CMP CMOS-7 TOOL.
    
T.RTitleUserPersonal
Name
DateLines
37.1Replaced bootLUDWIG::STANDINGThu Aug 29 1996 10:027
           WSTK.1   Replaced the bellows boot over the unload station dump
           valve.  After assembling the valve with no leaks, the valve did not
           cycle back up to fill the tub.  Located TR2,3 and relay cr17 inside
           the fluids cabinet, under the top lip.  Found that TR2 was not
           opening due to the time delay resistor not making good contact
           inside the spade terminals.  Crimped spade connector and connection
           was reestablished.  Dump valve then started working normally.
37.2gGIGLISTLUDWIG::WESTPHALFri Aug 30 1996 21:1322
CMP.C1 - Engineering made a list they want completed by this coming Tuesday.
	  
			1. Load alignments 
                        2. Unload alignments.                       
			3. Chillers filled
                        4. Check if platens come up to temperature
                        5. Repair the final wetting ring
			6. Do the sweep alignments for both tables
                        7. Arm alignments

	 Topped off the chillers but never checked if the platens temperatures.
         Tried to transfer wafers but the tool would not even try to pick a 
	 new wafer.  Found that the center bolt for the load cup was so tight
	 that it was binding and not making its sensors.  Tried to again "load 
	 a new wafer" But crashed wafers.  The jam sensor is obviously not
	 working.  The wafers were not sensing properly in the load cassette.
	 Adjusted the optical sensors.  Final got the a wafer to load but the 
	 arm kept erroring for an arm Lifting error.  Adjusted the air flow to
	 the arm up/down cylinder and rebalanced the arm.  Transferred wafers
	 from load to unload with several different problems and errors. 
	 Tool presently sets powered off.  
37.3Hit ListSTRATA::WESTPHALSat Aug 31 1996 20:3619
			CMP.C1's Hit List Update
	                ------------------------

			1. Load alignments 
             ok         2. Unload alignments.                       
	     ok   	3. Chillers filled
             ok         4. Check if platens come up to temperature
    needs to be checked 5. Repair the final wetting ring
		        6. Arm alignments

CMP.C1 - The final platen was not heating.  The chiller had a low glycol level 
	 and the indicator lamp was burned out.  The bulb was replaced and the
	 chiller topped off.  Platen heated with out a problem.  The upgraded
	 shuttle jam sensor was installed but there was not enough time to
	 properly adjust it.  The water track to cassette alignment was also
	 completed.  Tool sets still needing the load handler and arm 
	 alignments.  Mike Standing and Myself will be in on Tuesday to do
	 them.	Tool power and DI is off.
37.4Shuttle Jam not workingSTRATA::STANDINGTue Sep 03 1996 20:374
    CMP.C1-7    Troubleshooted the new shuttle jam sensor installation. 
    Found that U4 and the relay KIL were working, but seemed to be sticking
    for some unknow reason...Checked stock for new ones had none.  Called
    WESTECH tech support got none.  Will try again in the morning.
37.5WSTK START-UP WORK CONTINUED.STRATA::WESTPHALWed Sep 04 1996 21:059
CMP.C1 - Continued with the install of the shuttle jam sensor.  Suspect that 
	 we are missing part of the new shuttle kit.  This is being checked on
	 and the parts will be ordered as needed.  Most of the handling
	 alignments have been completed but a few adjustments are still 
	 necessary.  Losing wafers on the primary pad.  Carrier film was gouge.
	 The carrier was rebuilt and reinstalled and with some changes to the 
	 recipe this problem has been corrected.  The primary heat exchanger
	 was leaking.  Did not have time to address this issue.
 
37.6WSTK START-UP WORK CONTINUED.LUDWIG::WESTPHALThu Sep 05 1996 21:164
CMP.C1 - Continued to prepare the WSTK for process engineering.  The Alignments 
	 were completed.  Tool sets needing the down force calibration and some
	 minor handling problems worked out.  The rest of the install kit for 
	 the shuttle jam sensor has been requested from Westech.  
37.7START-UPSTRATA::WESTPHALFri Sep 06 1996 20:443
    CMP.C1 - Continued with the start up.  Shuttle jam sensor is now
    operating properly (Thanks to Mike Standing).  Alignments and
    calibrations are complete. 
37.8Ready to run processLUDWIG::STANDINGSat Sep 07 1996 18:248
    CMP.C1-7  Continued with the startup.  Finished the shuttle jam
    install.  Adjusted load elevator home switch, shuttle hard stop, wafer
    prespray to 1 sec.  Adjusted the unload track water exit and bowl
    water.  Adjusted the wafer in track sensor gain.  Ran 75 wafers with
    out any errors before finishing.  Tool has been wiped down and is ready
    to run process.  NOTE!  Do not power down tool!  The motor for the
    primary heat exchanger will not restart!  A new motor should be rushed
    in, A.S.A.P.
37.9passdownSTRATA::FINNTue Sep 10 1996 20:4010
	Installed slurry filters and new hose for primary and final tables.
	Found final slurry not turning on , completed wiring at tb7-25. tested
	AOK.
	
	Set up flows for slurry rinse both tables.

	Installed regulation for water and n2 to Air brush tube.

					Tim/Larry/Brendan
37.10PROJECTSSTRATA::WESTPHALFri Sep 13 1996 19:525
CMP.C1 - Continued with the project list.  Connected the a piece of hose to the 
	 return for the day tank to avoid splashing.  Repaired the polish tub
	 rinse ring.  Installed a new 30" vacuum/pressure 30 psi gauge to the 
	 carrier.  shut the DI of to the tool due to the fact the line will be 
	 purged. 
37.11projects.LUDWIG::WESTPHALWed Sep 18 1996 20:196
    CMP.C1 - The second polish conditioner was slopping around.  The bolts
    were bottoming out.  Cut the bolts and reinstalled with no further
    problems.  Installed a clip to hold the final rinse ring flat against
    the table top.  Moved the slurry drum and pump into the room but did
    not hook it up.
    
37.12Day tank / Carrier wetting.STRATA::WESTPHALThu Sep 19 1996 20:533
    CMP.C1 - Poly welded a small piece that secures the slurry return to
    the day tank.  Also having some problems getting the carrier wetting to 
    work while the tool is idle.  No conclusion was reached.
37.13Final table condition arm sweep hooked upSUBPAC::LANDRYMon Sep 23 1996 18:2810
    Today.....
    
    	The condition arm for the final table was setup to utilize the
    sweep motor.  The motor power was re-connected and the "set-screw"
    mechanical stop was removed from the motor housing.  Also, the small
    diamond disk was re-installed to allow proper sweep movement.  Upon
    checkout, the conditioner would bounce occassionlly.  The air input
    was reduce to <10 psi to eliminate the problem. All's working fine.
    
    						Doc
37.14SHAFT HEIGHT ADJUSTEDSTRATA::WESTPHALSat Sep 28 1996 22:117
CMP.C1 - Adjusted the shaft height as requested by engineering.  The shaft
	 height was .740.  The new pad height is .022.  The shaft height is now
	 .772 (actual .775).  A new button was installed.  The tool presently 
	 sets all put back together, out of wet idle because that was how it
	 was found.

37.15VACUUM PROBLEMSSUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:2512
WESTECH - DROPPING WAFERS OFF THE CARRIER 
         FOUND WE WERE GETTING ONLY .375 IN OF MERCURY VACUUM TO THE CARRIER.
         FOUND NO CLOGS OR VACUUM LEAKS.  CHECKED WATER PRESSURE TO THE
         TO THE SYSTEM AND NOTICED WE WERE DROPPING 5PSI IN THE FILTER.
         REPLACED THE CLOGGED FILTER AND THE VACUUM WENT UP TO .540 IN OF
         MERCURY. MANUALLY CYCLED WAFERS THROUGH WITH NO VACUUM ERRORS.
         WE WERE NOT ABLE TO AUTOMATICALLY LOAD A WAFER UNTO THE CHUCK.
         COULD FIND NO OBVIOUS PROBLEMS.  THINK IT MIGHT BE OE ON OUR PART.
         SHERMAN WANG WILL NEED TO CHECK OUT SYSTEM COMPLETELY FOR PROPER
         OPERATION TOMORROW.

37.16SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:2514
                           -< WAFER LIFTER PROBLEMS >-
--------------------------------------------------------------------------------
       
WESTECH - WAFER LIFT KEEPS ON JAMMING
          REMOVED THE WAFER LIFT, DISASSEMBLED AND CLEANED WITH ISO AND DI 
          WATER. INSTALLED THE WAFER LIFT AND CYCLED ABOUT 4 WAFERS THROUGH
          WITH OUT PROBLEMS. IT WAS STARTING ON THE 5TH WAFER AND THE 
          SYSTEM ALARMED FOR WAFER NOT ON CARRIER.  NOTICED THE LIFTER WAS
          NOT STAYING UP ALL THE WAY.  TOOK THE  CUP OFF AND RAN THE LIFTER
          UP AND DOWN AND SAW THE THE LIFTER WAS NOT HOLDING PRESSURE IN 
          ORDER TO STAY UP.  THE SEALS  WERE LEAKING BY ON THE BOTTOM 
          PNEUMATIC LIFT.  FOUND ONE IN STOCK AND REPLACED. CYCLED WAFERS
          THROUGH WITH NO FURTHER PROBLEMS.

37.17SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:2515
                              -< Load cup faults >-
--------------------------------------------------------------------------------


      WESTECH--->   Found out through the grape vine that the Westech was not
                    loading properly.  Found that the load cup was
                    intermittently not making it to the lift to load position.
                    Adjusted the solenoid that supplies air to the lift to load
                    cylinder.  Ran 25 wafers in the IDLE 1 program without any
                    problems. System is UP.
                    

                    
        Mark/Brian
    
37.18SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:2516
                         -< Primary conditioning arm  >-
--------------------------------------------------------------------------------


                WSTK.1--->              The primary conditioning arm was
                        not moving over to the pad to condition.  Found
                        that the arm was bound to the home position.  The
                        spring was not actuating it to the pad.  Moved the 
                        arm over while turning the pad conditioner on.
                        Cycled several times and it tested good


                Brian


    
37.19SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:268
                        -< Was down for "load problem" >-
--------------------------------------------------------------------------------
    System was down because the wafers would not load, meaning they would
    not transfer from the load cassette to the lift cup.  Found spindle
    controller breakers tripped.  Reset them, system runs fine.
    
    Item of note, the tool box combo has been changed due to "pilferage."
    See me for the new combination.
37.20SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:266
                              -< pad conditioner >-
--------------------------------------------------------------------------------
Westech - Primary pad conditioner not returning to its home position
          found the spring and the retainer screw off the conditioner arm
          and laying in the bottom of the system. Reinstalled the screw and 
          the spring, cycled the conditioning arm with no further problems. 
37.21SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:2612
                           -< BAD SHUTTLE LOAD CELL >-
--------------------------------------------------------------------------------
WSTK.1 - SHUTTLE JAMMED
         CLEARED THE SHUTTLE AND ATTEMPTED TO CLEAR ALARM.  THE ALARM WOULD 
         NOT CLEAR. REMOVED THE SHUTTLE ARM TO EXPOSE THE LOAD CELL PINS. 
         TRIED TO CLEAR ALARM WITH THE PINS EXPOSED. THE ALARM WOULD STILL
         NOT CLEAR.  REMOVE THE FRONT PANEL TO EXPOSE THE WIRING AND 
         FIND WHICH WIRES WERE GIVING US THE FAULT.  FOUND THE TWO WIRES
         THAT WERE GIVING US THE CONTINUOUS FAULT AND REMOVE.  THE SYSTEM
         WILL RUN FINE WITHOUT THE LOAD CELL CONNECTED FOR NOW.  TIM IS
         IN CONTACT WITH WESTECH TO RUSH A LOAD CELL IN.  THE SYSTEM IS
         AT A WARNING UNTIL THEN.
37.22SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:266
                            -< LOAD CELL REPLACED >-
--------------------------------------------------------------------------------
WESTECH - THE NEW SHUTTLE LOAD CELL WAS INSTALLED AND TESTED OUT.  THE GFI
          CIRCUIT HAS BEEN REPAIRED AND IS FUNCTIONAL.  SOME MINOR 
          ADJUSTMENTS WERE MADE TO THE ARM UP AND DOWN PNEUMATICS IN ORDER 
          TO FIX THE ARM SLAMMING UP AFTER A PROCESS. RETURNED TO ASD
37.23SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:276
                             -< PAD CONDITIONING >-
--------------------------------------------------------------------------------
WESTECH - PRIMARY PAD CONDITIONER NOT WORKING
          THE PAD CONDITIONER STARTED WORKING ON ITS OWN. CYCLED WAFERS 
          THROUGH WITH NO FURTHER PROBLEMS.  STRAIGHTENED OUT THE  
          CONDITIONER SO THE DIAMOND SURFACE WAS FLAT TO THE PAD.
37.24SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:2720
ASDG::COSTA "Paintball, Paintball, Paintball"        17 lines  16-DEC-1992 23:53
                               -< system reboot >-
--------------------------------------------------------------------------------

    
Good afternoon,


                WSTK.1 -->              The system did not load the first
                wafer in the cassette.  So we rebooted the system, just in
                case it was effected by the power glitch earlier in the
                day.  No other problems were noted after the reboot.  I
                assisted Roger Spencer with the rest of the lot.



                Brian     

    
    
37.25SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:276
ESKIMO::MAZE                                          3 lines  29-DEC-1992 22:54
                         -< UNLOAD WAFERS HANGING UP >-
--------------------------------------------------------------------------------
 WESTECH - DOWN FOR UNLOAD WAFERS HANGING UP.
           CLEANED THE WATER TRACK AND ADJUSTED PITCH OF EXIT TRACK.  RAN
           SEVERAL WAFERS THROUGH WITH NO FURTHER PROBLEMS.
37.26SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:2716
ROULET::SITRIN                                       13 lines   6-JAN-1993 14:31
                           -< Lifter sensor problem >-
--------------------------------------------------------------------------------
    Wstk.1  The wafer sensor that is mounted in the lifter does not
    operate.  This sensor is a fiber optic type and thus the reciever
    portiion has a break in the fiber optic part of the sensor.  We were
    unable to splice the fiber optic together therfore odering a new assembly.
    Senor due in tomorrow.  I will leave the parts there if someone can come 
    up with a splice kit.  
    
    This was not the original problem.  The system went down because the
    carrier did not sense a wafer when it tried to pick it off the lifter.
    We adj the lifter speed to see if this would fix the problem but was 
    unable to test due to the sensor problem.
    
    
37.27SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:286
Note 96.16                      WESTECH PASSDOWN                       16 of 437
ESKIMO::MAZE                                          2 lines   7-JAN-1993 22:47
                               -< WAFER SENSOR >-
--------------------------------------------------------------------------------
WSTK.1 - FIBER OPTIC WAFER SENSOR CABLE REPLACED.  CYCLED WAFERS THROUGH 
         WITH NO PROBLEMS.  RETURNED TO MFG.
37.28SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:289
ROULET::SITRIN                                        6 lines   5-FEB-1993 12:58
                               -< Platens off  >-
--------------------------------------------------------------------------------
    Wstk.1- Is up, when production came in this morning they found the
    system down.  The platens were off and slurry was all over them.
    The CB for the platen drives had to be reset.  This condition is 
    usually caused by the system being EMO'd then powered up too soon.
    You know this has happened by going to the 24 volt panel and not seeing 
    relays 4a and 4b lite behind the CPU card cage.
37.29SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:288
                          -< missing final pad step >-
--------------------------------------------------------------------------------
WSTK.1 - Down for arm not going to final pad.
         Ran the CMOS 5 recipe with no problems.  The system was also down
         for the press not working.  Found the shaft height was mis 
         adjusted.  Readjusted the press shaft height and returned to MFG.
         JMZ/BF

37.30SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:2812
ESKIMO::MAZE                                          9 lines  23-FEB-1993 22:57
                             -< transfer problems >-
--------------------------------------------------------------------------------
WSTK.1 - Down for wafer transfer problems.
         The wafers were hanging up in the exit water track.  Removed the 
         exit jets and cleaned the track.  We put some shims between the
         bottom of the track and the jets.  The heavy white boats are also
         giving us problems.  The heavy boats are to muck for the exit 
         indexer to hold.  The wafers tilt forward and slide out of the 
         boat.  This causes the wafers to hang up on the bottom of the 
         exit track.           JMZ/MS

37.31SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:289
ROULET::SITRIN                                        6 lines   5-APR-1993 14:14
                         -< testing di flush solenoid >-
--------------------------------------------------------------------------------
    Wstk.1 - Has low etch rate,  Sherman suspected the primary flush
    solenoid was leaking by diluting the slurry.  We found this not to be
    the case, disconnected the flush solenoid electrically (DI rail#2 
    wire# 152). and there was not di flush which meant the solenoid was
    closing.  Tim is presently testing the slurry.
    
37.32SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:2915
ROULET::SITRIN                                       12 lines   6-APR-1993 14:10
                         -< more on  low e.r. problem >-
--------------------------------------------------------------------------------
    Wstk.1 - Etch rate is still very low. We checked the down force press
             and it needed a minor adj.  The slurry was tested and it
    	     appears watered down.  Presently we are having incoming slurry
             from bulk fill tested.  The slurry we already had tested came 
             right from the dispense nozzle on the platen.  We also looked 
             into seeing if the DI water was contaminating the slurry.  
             Checked where any DI valves come in contact with slurry.  There 
             is one DI line by the tank and it was shut off with no signs of 
             water seeping by. The valve used for purging out the slurry lines
             were disconnected at the output side of solenoid and there was no
             DI  slipping by there either.  The line tying into the new system
             is shut off and also appears empty of any liquid.
37.33SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:2916
ESKIMO::MAZE                                         13 lines   6-APR-1993 22:41
                                -< low removal >-
--------------------------------------------------------------------------------
WSTK.1 -  down for low polish rate.
          Called the lab and found the slurry PH at 9.1  This is a low reading
          Dumped the slurry out of the PH tank and refilled with new slurry.
          Ran a polish rate test and the removal was around 600.  Switched 
          to pump two and ran the same test and the removal rate was around 
          900.  Saw the hole in the dispense tube for pump one was 
          partially clogged. Cleaned out the tube and ran another polish 
          rate test. The rate was still around 600 with pump one.  Changed 
          the pad and ran another removal rate test. It was still low. The
          pad conditioner appears to be OK. Suggest a slurry sample be 
          taken from: Pump 1, pump 2, and the PH tank itself. JMZ/Ceasar


37.34SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:297
LUDWIG::POOLE                                         4 lines  29-APR-1993 06:49
                                -< ACCESS CODE >-
--------------------------------------------------------------------------------
    Access code:  When system is powered down push access code, 
                  enter 456 then push enter access code. 
                  Then initialize.
    
37.35SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:2913
ROULET::SITRIN                                       10 lines  29-APR-1993 10:49
                  -< unif being effect by parallelism of arm >-
--------------------------------------------------------------------------------
    Wstk.1 - Was down for uniformity, the polish rate was low in the
    middle.  We checked the arm sweep and it was off  .008".  Adjusted
    set screws on top bearing for this issue.  Next we did carrier sweep
    /runout and it was out by .005".  Also noted was the carrier height 
    adj shaft was off and the whole arm was not parallel to the platen 
    so instead of just adj the gearbox shims we adj the turnbuckle on the
    lower elbow link.  This brought in the carrier sweep/runout right to
    0.  A thing to remember is the arm parallel to the platen should be 
    checked before any sweep leveling is adj.
    
37.36SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:2916
ROULET::SITRIN                                       13 lines   1-MAY-1993 10:45
                        -< clean station not draining >-
--------------------------------------------------------------------------------
    Wstk.1 Clean station not draining fast enough. Put work order in that 
    we wanted to modify plumbing under clean station so it drained faster
    and more completely (Water is draining from cleanstation but some of
    the water is being trapped in the plumbing below. Showed Bill Kurz from 
    facilities what is happening.  He had his folks do a quick fix only to
    speed the time in which takes to drain the tank.  The tygon part of the
    drain that was just hanging there is gone.  So now it is a straight
    shot from the bottom of the clean station to the pvc plumbing.  The
    clean station now drains faster but this is a simple temporary fix.
    The pernament fix is going to take a lot work and designing.  The 
    biggest problems are we have drains going up hill and to small of
    piping thus impeding the flow.  Next week we will sit down and draw 
    up a plan that will work.
37.37SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:3027
ASDG::COSTA "Paintball, Paintball, Paintball"        24 lines  11-MAY-1993 00:22
                     -< EQUIPMENT Passdown - 11-MAY-1993 >-
--------------------------------------------------------------------------------

Good morning,


                WSTK.1 --�                      The transport arm jammed
                into the input cassette while trying to go to "shuttle
                to elevator position".  While the shuttle was pulling a
                wafer out of the cassette it pulled the next wafer
                out of the cassette enough so that the through beam sensor
                did not see it.  Then the transport jammed on the next
                wafer.  This happened a second time while I was watching it
                cycle.  
                                                I adjusted the shuttle stop 
                and limit switch on the load cassette side so that the
                shuttle is centered under the wafer.  I then cycled 50
                wafers and it tested good.  The system is UP in RTC.
                                
                No other equipment issues...                         
               
                Mark was out.
                
                Brian


37.38SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:3015
SCOMAN::TDYER                                        12 lines  18-MAY-1993 10:37
                           -< Low center PR/old pad >-
--------------------------------------------------------------------------------

 WSTK.1 - Down for low center polish rate. The primary pad was near 3
 weeks old, it was replaced. The carrier was replaced with a new 6u convex
 curvature carrier. The center PR is now fast, the system was put down 
 for high uniformity again. This was incorrect, we actually desire a fast
 center rate due to the incoming oxide film layer which is center thick.
 The conditioner plate was adjusted to control rate drop off from 1st to 
 last wafer.
   Note: When the pad life is near it's end, the center of the wafer is the
   first place where the polish rate will drop due to clogged pours. Also,
   a new pad must be broken in before running a lot. 

37.39SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:3024
SCOMAN::TDYER                                        21 lines  28-MAY-1993 15:51
                              -< high uniformity >-
--------------------------------------------------------------------------------
    
    System down for 30% center fast high uniformity. The system allignment
    was checked. The sweep was .015/1000" out. The carrier arm had no up
    down play when in the down position. The cam follower was mounted too
    close to the carrier arm post, adjusted same. Also adjusted lock over
    arm and calibrated down force.
    
     The following alignments/adjustment were made:
    
              Pre       Post
    Level   +/-.350     +/-.003
    Sweep   +/-.015     +/-.004
    Run out +/-.016     +/-.003
    
    Next:
    System errored for arm not down, the arm down switch was adjusted.
    Uniformity was checked, it came in at 15%. The carrier was changed
    and the uniformity came in at 17%. The carrier curvature will be
    changed to decrease the center polish rate.
     
         
37.40SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:3012
ESKIMO::POOLE                                         9 lines   1-JUN-1993 06:37
                 -< fluid/spindle primary+final backwards??? >-
--------------------------------------------------------------------------------
WSTK.1  -  Primary platen fluid was not dispensing.  Production was
           using the fluid/spindle test screen when trying to flow
           slurry.  Slurry tank was empty so I filled the tank. Slurry
           still would not flow.  Noticed final flowed rinse water
           when rinse flow was on for the primary.  Flowed slurry on
           final and the primary started flowing slurry.  Ran wafers
           thru system on process recipe and it ran without error.
           Looks like the software is backwards on the Fluid/Spindle 
           test page.  
37.41SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:3029
ASDG::COSTA "Paintball, Paintball, Paintball"        26 lines   9-JUN-1993 23:10
                      -< EQUIPMENT Passdown - 9-JUN-1993 >-
--------------------------------------------------------------------------------

Good morning,
    
                WSTK.1 --�              I worked with Bob Francis on a
                problem with carrier vacuum.  The carrier arm would pick
                the wafer up, sense vacuum then loose vacuum.  We replaced
                the carrier assembly and this fixed the problem.  During
                troubleshooting, a wafer broke on the final pad.  We also
                noticed that the system was making noises when the carrier
                was on the final platen.   There are 4 new final pads that 
                we got out of the stockroom in the westech room.

                Misc --�                I placed a call to 4141 because
                there is water leaking into APL through the hepa filters,
                and near the light fixtures.
                                        Facilities removed the water from
                above the filters and wiped down the walls.  There is still
                some residual water in the hepa filters, but they should
                dry out.
                
                No other equipment issues.
                
                Brian


    
37.42SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:3114
ASDG::KETRON                                         35 lines  12-JUN-1993 11:31
                     -< EQUIPMENT Passdown - 12-JUN-1993 >-
--------------------------------------------------------------------------------


                           Passdown for Saturday 6/12
                           

     Westech        Set-up the two terminals for the Westech room.
                    These terminals are now set up to run dual sessions.
                    The data drop cable was missing from the outlet in the 
                    service area.  I found a extra cable and installed it on
                    the terminal drop.
                    
37.43SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:317
STRATA::MENSAH                                        4 lines  14-JUN-1993 14:06
                         -< CONDITIONER ARM PROBLEMS >-
--------------------------------------------------------------------------------
    DOWN FOR CONDITIONER ARM PROBLEMS; REMOVED THE COVER FOR THE CONDITIONER
    STATION AND FOUND A PLASTIC INSIDE PREVENTING THE CONDITIONER ARM FROM
    REACHING ITS HOME SENSOR...REMOVED THE PLASTIC AND CYCLE DUMMIES WITH NO
    CONDITIONER ARM PROBLEMS.
37.44SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:317
STRATA::CLOUTIER                                      4 lines  19-JUN-1993 03:18
                   -< CONDITIONING ARN STUCK AT EDGE OF TT >-
--------------------------------------------------------------------------------
    WSTK.1: Down for pad conditioner arm stuck between the edge of the
     	turntable.---Found the allen screw holding conditioning fitting
    	to the motor assembly loose.  Tightened same and had production run
    	system for a while to check it out.  No further problems.
37.45SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:3116
SCOMAN::TDYER                                        13 lines  22-JUN-1993 12:04
                           -< Conditioner bouncing >-
--------------------------------------------------------------------------------
         
WSTK.1 - Down for primary condition arm jumping up and down.
         Found the Primary condition arm jumping up and down during the
         condition cycle.  Noticed the motor stopping and the arm lifting 
         up. If we held the limit switch, it would work correctly.  
         Adjusted the limit switch and was able to manually run the pad 
         conditioner.  But the conditioner was not working automatically
         when cycling wafers. Swapped sol 29 with 40 (primary with final)
         Cycled wafers through without further problems.  note**   We need
         to replace the sol for the final conditioner.
    
                                                          JMZ/BF
    
37.46SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:318
LUDWIG::SITRIN                                        5 lines  24-JUN-1993 12:11
                     -< conditioner station assembly swap >-
--------------------------------------------------------------------------------
    WSTK.1 - We placed the new conditioner assembly that came off the
             final side.  It worked fine except for a couple of adjustments
             to the up/down speed.  Presently the old style conditioner
    	     is on the system.  The unit pulled off is in the tan cabinet 
    	     in the wstk room.
37.47SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:319
STRATA::GILMAN                                        6 lines  24-JUN-1993 12:13
                           -< Load cycle locked up. >-
--------------------------------------------------------------------------------
    Wstk.1-  Down for load cycle locked up.  I found the shuttle's "lift"
    position sensor not being made.  This was caused from Slurry getting
    on the Guide Rods for the Shuttle.  The Slurry made it difficult for
    the shuttle to travel smoothly to the lift and it was slamming into
    the sensor, which moved it.  I cleaned the Guide Rods and adjusted the 
    position of the sensor.
37.48SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:3213
               <<< SCOMAN::SILVER$:[NOTES$LIBRARY]ETCH.NOTE;4 >>>
                                   -< ETCH >-
================================================================================
Note 96.48                      WESTECH PASSDOWN                       48 of 437
STRATA::GILMAN                                        6 lines  24-JUN-1993 12:13
                           -< Load cycle locked up. >-
--------------------------------------------------------------------------------
    Wstk.1-  Down for load cycle locked up.  I found the shuttle's "lift"
    position sensor not being made.  This was caused from Slurry getting
    on the Guide Rods for the Shuttle.  The Slurry made it difficult for
    the shuttle to travel smoothly to the lift and it was slamming into
    the sensor, which moved it.  I cleaned the Guide Rods and adjusted the 
    position of the sensor.
37.49SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:328
LUDWIG::SITRIN                                        5 lines  24-JUN-1993 14:43
                               -< arm bouncing\ >-
--------------------------------------------------------------------------------
    wstk.1 - The conditioner arm was bouncing, the reason is the it was
             applying to much down force.  What we did is adj prv12 and
             whatch the guage next to it while we were running.  Book
             says to adj it to 3psi but that is not enough for production
             so we raised to 6psi.
37.50SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:3210
LUDWIG::SITRIN                                        7 lines  25-JUN-1993 14:32
                    -< New conditioner and shuttle problem >-
--------------------------------------------------------------------------------
    Wstk.1 - We swapped out the old conditioner and placed on the new one.
             Production tested it and the new conditioner kept the polish
             rate consistent thru the whole lot.  Waiting for micro scoring
             results next.
    
             Shuttle was slaming very hard into the carrier.  Adj the
             centering blade and cleaned the guide rod.  Tested looks good.
37.51SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:3215
ESKIMO::MAZE                                         12 lines  28-JUN-1993 22:44
                              -< high particles >-
--------------------------------------------------------------------------------

WSTK.1 - VERIFY-high particles
         Cleaned the carrier, platens and exit station.  Dumped the slurry 
         from the PH tank and cleaned thoroughly. Hooked up all dead legs 
         in the slurry system and purged with DI. Refilled the slurry PH 
         tank and cycled new slurry to tool.  Ran a particle check and it 
         came out to 300+.  Was in the process of running another particle
         check when the lift to sense failed.  Found a bad solenoid for the
         pneumatics. (sol8).  Removed the solenoid and is in the process of 
         finding another.        
 

37.52SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:3320
SCOMAN::TDYER                                        17 lines  29-JUN-1993 09:07
                       -< review of high particle prob >-
--------------------------------------------------------------------------------

     REVIEW OF THE HIGH PARTICLE PROBLEM. 6/29/93

    The system was put down on Sunday start up 6/27 with particle counts
    of 3000. On the previous Friday 6/25, the new style end effector was
    installed and a monthly pm performed. To go back to square one, the
    new end effector was removed, both pads changed load and unload are
    cleaned and slurry tank was washed out. Particles came in at 178. We
    were looking to achieve <100, this is what was achieved ion the past.
    EXCEPT these low readings were on product wafers and read on the 7000.
    The monitor wafers are not polished as long and are read on the 6200.
    We will continue to monitor monitor particle levels with the upper
    control limit set to 500.

                                                   Tim

     
37.53SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:336
LUDWIG::SITRIN                                        3 lines  29-JUN-1993 15:12
               -< final slurry pump disconnected for final pad >-
--------------------------------------------------------------------------------
    wstk.1 Disconnect wires from tb7 terminal #31 and #25 wires #235 and
           #153.  They can be connected at any time  and go to the slurry
           pumps for the final platen.
37.54SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:339
LUDWIG::SITRIN                                        6 lines  30-JUN-1993 13:49
                       -< adj vac switch replaced valve >-
--------------------------------------------------------------------------------
    WSTK.1 went down for two problems, the 1st was the water valve for the
    final slurry was leaking across the seat.  Replaced with the upgraded 
    valves.  Tested looks good. The other problem was wafer vacuum on the 
    carrier.  Vacuum switch sensitivuty was increased.  Tested looks good.
    
    
37.55SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:3311
LUDWIG::SITRIN                                        8 lines   1-JUL-1993 14:36
                               -< wafer vacuum >-
--------------------------------------------------------------------------------
    Wstk.1-Down for wafer vacuum not being sensed on the carrier. 
    Production and process engineering have seen the problem many
    times today.  At first they thought it was the wafers because it
    seemed to happened on just WJ wafers.  Then we saw it happen once 
    and what we noticed was the wafer was not sitting in the pocket 
    of the carrier.  Therefore we have been looking at the loading
    of the wafer especially coming into the lift.  Have been running
    many wafer tranfers with no problems seen.
37.56SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:3315
                          -< carrier vacuum problems >-
--------------------------------------------------------------------------------

WSTK.1 - down- for Carrier vacuum not achieved.
         Changed the carrier and cycled two boats of wafers through without
         further problems. On the third boat of wafers we left the system 
         and came back to a wafer smash on the primary pad.  Did not see  
         why the wafer broke, but there was a wafer in the carrier when we 
         arrived. The only explanation was there was two wafers stuck 
         together in the load cassette and the tool loaded both of them 
         as one. We cleaned up the mess and replaced the carrier and the
         primary pad.  A vacuum/pressure gauge has been  installed on the 
         tool and a boat of wafers were cycled without problems.  Turned 
         system over to mfg for full mqc's

37.57SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:3316
ESKIMO::MAZE                                         13 lines   1-JUL-1993 22:29
                              -< carrier vacuum >-
--------------------------------------------------------------------------------
WSTK.1- Down for carrier vacuum not achieved
        Found the wafer was being placed on the carrier to one side and out 
        of the pocket.  Adjusted the lift over and still had the same 
        intermittent problem. After several test and alignment tests, It was 
        concluded the alignment was good and the problem was happening 
        during the lift to carrier. Turned up the N2 to the system and was 
        able to increase the secondary reg to 80 lbs. It was originally
        sitting on 70 lbs.  We also turned down the load spray from 1 sec to
        1/2 sec.  With those two changes, were were able to cycle 3 boats 
        of wafers through without further problems. The system was turned 
        over to MFG and a removal rate was done. The removal rate is still 
        low at 800.  Mfg decided to run with it and ran both lots without
        any problems.
37.58SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:3419
STRATA::POOLE                                        16 lines   6-JUL-1993 03:41
                           -< Wafer loading problem >-
--------------------------------------------------------------------------------
WSTK.1  -  Passdown stated that wafer lift needed replacement without
           any explanation or reason.  Checked wafer lift out and only
           fault noted was the lift to load vibrated when it retracted.
           The lift to load assembly was replaced and the new part had
           the same symptoms.  The pneumatic switch (SOL9) has a pre-
           sicion flow valve (PRV17) on its input.  PRV17 was adjusted
           and the lift operated smoothly.  Tried running wafers and 
           the carrier did not pick the wafer from the load station.
           Noticed the load station move down slightly when the arm
           came down to load.  Again adjusted PRV17 and the system ran
           without error.  
                 The system pressure was adjusted from 70 to 80 psi
           last thursday.  The PRV17 adjustment is sensitive so this
           might have thrown it off.
                 The primary and final pads were replaced.

37.59SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:3421
COMAN::TDYER                                        18 lines  14-JUL-1993 14:19
                        -< REVIEW OF LOW POLISH RATES >-
--------------------------------------------------------------------------------
    
    WSTK.1 - Low polish rates, <1000a/m since 6/25/93. On 6/30/93 slurry
    samples were taken. The tank in the chase was low at 10% solids. The
    tank out back was mixed and than sampled, it read 12%. The chase tank
    was drained and refilled, polish rates came in spec at 1060a/m on
    7/2/93. Again on Thursday 7/8/93 low polish rates were experienced, 
    @900a/m. Samples taken again showed the chase tank was at 11.5%. Again
    the tank was dumped an refilled. Polish rates came in at 1200a/m. This
    problem will be eliminated by modifying the bulk system to constant
    recirc.
    
                  FYI slurry specs
    
            % solids        12%
            PH              10
            % KOH           <1%
            % DI            87%
    
37.60SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:3423
SCOMAN::TDYER                                        20 lines  14-JUL-1993 15:30
                           -< Test data for Low ER >-
--------------------------------------------------------------------------------
    
    WSTK.1- Problem= Low Etch Rate.  
    Solution=  At the request of Tim Dyer the following things had to be
    checked out on the Tool:  1)Down Force  2)Platen Rotation 3)Carrier
    Rotation 4) Leaks from DI Water Valves into Slurry System.
    
    My findings were as follows:
    1) Down Force            Reading from screen= 197 lbs
                             Reading from Meter = 200 lbs
    
    2) Primary Platen Rotation  Reading from screen=  20 rpms     65rpms
                                Reading from Strobe=  20 rpms     66rpms
    
    3) Carrier Rotation         Reading from screen=  14 rpms     30 rpms
                                Reading from Strobe=  14 rpms     30 rpms
    
    4) Found no leaks in the system. 
    
                                                 Scott Gilman
                
37.61SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:3410
STRATA::FRANCIS                                       7 lines  15-JUL-1993 21:55
                            -< WSTK.1 Power down. >-
--------------------------------------------------------------------------------
    WSTK.1 - The system powered down by itself. Powered the system back up.
           Checked and found no water in the back panel or the Tub exhaust.
           Don't know why the system powered down. It was noticed that the
           shuttle was bumping into the wafer lift. Tightened up the top
           air cylinder of the wafer lift to the bottom one. Also changed
           both pads. Ran several wafers with no more problems.
    
37.62SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:3511
STRATA::GILMAN                                        8 lines  30-JUL-1993 18:29
                           -< No vacuum at Load Cup >-
--------------------------------------------------------------------------------
    WSTK.1- It went down for not making vacuum at Load Cup.  When I
    examined the tool I found it was dropping on the Primary Platen, as
    well as not making vacuum at the Load Cup. I adjusted the travel for
    the downward motion on the robot arm to make the Carrier and Load
    Cup flush to each other.  I also had another Carrier rebuilt, then
    installed it.   A full cassette of wafers was run with no problems.
                                                   SDG
    
37.63SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:3517
SCOMAN::TDYER                                        14 lines   2-AUG-1993 19:59
                       -< No Waf Vac/particles/shuttle >-
--------------------------------------------------------------------------------
    
              NO VACUUM AT LOAD CUP....
      
    NO WAFERS could be picked at the load cup, system did not reach vacuum.
    The arm stabilizer DO was on but the stabilizer air cylinder was not
    acuated. This was letting the arm go limp in the upward direction,
    causing the wafer to not sit firmly in the pocket of the carrier.
    The needle valve for the stabilizer cyclinder was adjusted. Next the
    system had high particles @1700. The wafer was hitting on the two of 
    the cup's depressor pins. Both shuttle stops were adjusted; the shuttle
    at cassette and the shuttle at load cup. The wafer now drops into the
    center of the load cup. Both pads were replaced, they became dry. The
    next particle check was in, near the UCL.
                                                          TD
37.64SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:357
LUDWIG::SITRIN                                        4 lines   4-AUG-1993 10:43
                       -< wstk carrier vacuum problems >-
--------------------------------------------------------------------------------
    Wstk.1 - Vacuum sense problem was due to button missing from the
             carrier.  Replaced vacuum switch but they are preset from the
             factory for 4".  Vacuum should be about 20" and this will 
             be reflected on the guage.
37.65SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:3738
SCOMAN::TDYER                                        35 lines   6-AUG-1993 16:27
                          -< SYSTEM PROBLEM HINTS>-
--------------------------------------------------------------------------------

 The access code is 456. The MFG access code is 222.

 For high particle:- Clean the entire tool thoroughly with DI, especially
                     the load area (all parts). Remove all slurry build up.
                   - Dump the clean station and refill (DI/DO page 3)
                   - Dump the exit tank several times.
                   - Replace both pads (with zero bubbles), rinse both pads 
                     with DI water. Have MFG Run 10 or so oxide monitors wafers
                     with the "Warmup" recipe.
                   - Recheck particles.

  Low Polish rate: - Replace the Primary pad and conditioner
                   - Drain the Slurry tank and refill.
                   - Recheck the rate.
                   - If bad: verify platen speed and carrier speed.
                             check down force.
                
  Handler problems: - Check error page for what type of failure.
                    - check to see that the carrier is sitting in the load
                      cup properly.
                    - Check vacuum gauge, should read ~20"
                    - If low check vacuum line for leaks and check Soft water 
                      filter on the chase wall. If this is clogged there 
                      will not be enough water flow to create a good venturie
                      vacuum.
                    - If there is good vacuum and the wafer is not staying 
                      in the pocket, have MFG replace the carrier. 
                    
  Uniformity high (greater than +15% or less than -5%)
                    - How old is the carrier?.....have MFG try new carrier.
                    - Replace primary pad.
                    - Check again.
                    - Check alignments (Trained personnel only)

37.66SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:375
LUDWIG::SITRIN                                        2 lines  19-AUG-1993 14:37
                              -< shuttle problem >-
--------------------------------------------------------------------------------
    wstk.1 Shuttle getting hung because the guide bearing fell off. 
    	   Reattached guide bearing tested looks good wup.
37.67SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:3711
STRATA::FRANCIS                                       8 lines  20-AUG-1993 18:46
                        -< WSTK.1 Arm up/down problem. >-
--------------------------------------------------------------------------------
    WSTK.1 - Went down for a suspected Carrier problem. Carrier looked OK.
          The vacuum for the wafer Carrier came on before the arm moved all
          the way over to the Primary platen edge after being polished on
          every wafer. Adjusted the flow valves for the arm up/down motion
          since the arm was moving up slow. This helped out a lot. The Arm
          balance, the water track, and the load cassette present switch
          were adjusted also. Cycled several wafers through with no more 
          problems.         BF 
37.68SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:3715
STRATA::GILMAN                                       12 lines  23-AUG-1993 17:29
                    -< High polish rate in center of wafer >-
--------------------------------------------------------------------------------
    WSTK.1 - Down for high Polish Rate in center of wafer.  We found
    several leveling problems with the Polish Arm. We ended up doing a
    complete realignment of the Arm.  1st) Adjusted Locking Mechanism.
    2nd) Adjust Arm Level. 3rd) Adjusted Platen Sweep over both Platens.
    4th) Performed Carrier Runout. 5th) Adjusted Down Force.   We had some
    difficulty performing the Carrier Runout, because the 90 Degree Box
    does not sit perfectly in the Arm. So we leveled the Arm .007 inch lower in
    the front than in the back.  This allowed for the Carrier Sweep be 
    +or- .003 inch, which got it in spec and did not affect the Platen
    Sweep.  
    
                                                SDG/TD 
37.69SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:387
STRATA::FRANCIS                                       4 lines  14-SEP-1993 21:33
                         -< WSTK.1 SOLENOID PROBLEM. >-
--------------------------------------------------------------------------------
    WSTK.1 - Replaced Solenoid 12 for the wafer vacuum on the Carrier. The
           original one was cracked. Tried a number of wafers with no
           problems. Gave it back to MFG for MQCs.
    
37.70SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:3828
ESKIMO::MAZE                                         25 lines  16-SEP-1993 14:49
                       -< shutlle problems  late entry >-
--------------------------------------------------------------------------------
WSTK.1 - Down for loss of wafer backside control and shuttle control
         When the backside pressure was enabled in the recipe, the system would
         do a cpu dump.  The system would come up to a DOS prompt. We tried to
         run the system with the backside disabled, but we encountered a 
         shuttle jam.  Was not able to clear the shuttle jam on the screen. 
         Disconnected the load cell leads to the amp board and was still unable
         to reset the shuttle.  Jumpered the output wires from the amplifier
         board, and was able to toggle the shuttle.  The screen would toggle
         but the shuttle would not move.  Disconnected the air lines to the 
         shuttle from under the load station and toggled the screen.  No air
         was flowing.  We then disconnected the air lines at the solenoid and 
         there was air.  The air was lost between the solenoid and the piston.
         Found a separate set of solenoids that were controlled by the shuttle
         force load cell PCB. The PCB need the reset signal to open the set
         of solenoids before the shuttle piston.  Went to the D.O and found the
         signal was getting passed. The wire was later found to be a control
         line for the new backside pressure mod.  Disconnected the wrong wire 
         and found the correct wire for the shuttle reset signal stuck inside
         the wiring harness. Connected the correct wire up but we still could
         not reset the shuttle jam.  The shuttle jam pcb must be blown from  
         running the backside signal to it.  Had to jumper the entire board 
         out in order to move the shuttle back and forth. The tool will not 
         run wafers correctly do to backside signals passing thorough the 
         Shuttle reset D.O. The software must of been changed by the reps to 
         do this.  Westech has been notified and will be in tomorrow. 
37.71SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:3810
STRATA::MAZE                                          7 lines  23-SEP-1993 14:49
                      -< shuttle jam and gimble problems >-
--------------------------------------------------------------------------------
    WSTK.1 - down for Shuttle jam.
             The shuttle was jammed half way into the lot.  Reset the
             shuttle and cycled wafers through without further problems.
             The slurry was dried on the pad so the pad was changed as
             well.  Later in the day the system went down for gimble
             problems.  A new button was drawn from stock and and installed
             in the carrier.  MFG is runing MQC's at this time.
37.72SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:3829
SCOMAN::TDYER                                        26 lines  28-SEP-1993 13:13
                          -< POLISH FOREVER/ARM #'S >-
--------------------------------------------------------------------------------
    
    WSTK.1 - The system would not stop polishing.
    
             The polish time would go to zero, out the tool would continue
             to polish...forever. When the time reached zero, the tool
             would back off on polish pressure from 7 psi to 3 psi. It
             should go to zero psi, when the polish time is up. The arm
             covers were removed for an inspection of the load cell. The  
             stabilizer alignment spacer was left installed. This spacer
             should ONLY be installed dering alignment checks, not durring
             polishing. The spacer was removed and system tested. Durring
             edge lift the carrier was rubbing against the side of the
             table top. All arm calibration positioning constants were
             adjusted and saved to config. Cal numbers are listed below.
             No further control problems....waiting on polish rate data.
    
             WSTK.1   Arm constants
    
             PC = 24195
             PL =  4549
             FC = 42243
             FL =  3525
             UL = 57197
             CS = 11091
    
                                                            TIM
37.73SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:3811
STRATA::FRANCIS                                       8 lines  30-SEP-1993 18:03
                        -< WSTK.1 - Multiple problems. >-
--------------------------------------------------------------------------------
    WSTK.1 - Down for the Carrier pads wearing out quickly because of 
         the high pressure coming out of the spray nozzles of the Clean
         station. Installed a manual valve to Sol18 to control the 
         pressure. Replaced the last stationary nozzle of the Clean
         station with a swivel nozzle. Also adjusted the Load elavator
         so that the Shuttle would not scrape any wafers as it was going
         in and when it was coming out. Gave the system back to MFG.
    
37.74SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:3811
STRATA::POOLE                                         8 lines   7-OCT-1993 07:37
                   -< transport stopped after final polish >-
--------------------------------------------------------------------------------
WSTK.1  - Transport arm stopped at final platen after final polish.
          Found fiber optic cable broken at exit sense.  None in stock.
          Repaired cable by flairing cable and putting it back in its
          holder.  Also adjusted the load cassette sense and the shuttle
          blade.

          
          
37.75SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:397
STRATA::FRANCIS                                       4 lines  12-OCT-1993 22:11
                         -< WSTK.1  Low polish rates. >-
--------------------------------------------------------------------------------
    WSTK.1 - Changed the Centering button, the End efector, and the Primary
          pad at different times during the night because of the low polish
          rates. The pad was changed about 10:15 PM. MFG will run MQCs.
    
37.76SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:3930
STRATA::GILMAN                                       27 lines  18-OCT-1993 19:06
                         -< High Center Polish Rate. >-
--------------------------------------------------------------------------------


WSTK.1  Down for High Center Polish Rate.  I check everything that could
create the High Center Polish Rate. I found three things to be out of spec.,
#1 the Carrier Shaft Hieght, #2 Found a high spot on Primary Platen, #3 found
"Polish Vacuum" setting to be incorrect.  The rest of the checks I did came well
within spec. I have listed below all my finding.

1) Carrier Shaft Hieght  Pre. = .810 in.  Post = .751 in.  I added shims to 
   correct this.

2) A high Spot on Primary Platen was taken out by losening, then tightening
   back down the Platen.  It caused the Platen Sweep to be out on one spot
   to be +/- .007 in.

3) "Ploish Vaccum" setting was at 2.0, should be 3.5.

4) Platen Sweep in spec. at +/- .002 in.

5) Carrier Sweep in spec. at +/- .002 in.

6) Platen Runnout in spec. at +/- .003 in.

7) Down Force  Pre. when asking for 275 lbs.= 274 lbs. ; Post when asking for
   275 lbs. = 275 lbs.

Scott G.
37.77SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:3910
STRATA::FRANCIS                                       7 lines  22-OCT-1993 01:03
                          -< WSTK.1 - Broken sensor. >-
--------------------------------------------------------------------------------
    WSTK.1 - Was originally down because both pads had to be replaced and
       they were changed. Also, one end of the Fiber optic sensor for the 
       water track was broken off. The Allen screw that held it in place
       had come loose causing the sensor to drop in the path of a wafer
       as it was going to the unload cassette. The sensor has been replaced.
       Cycled 5 wafers through with no more problems.
       
37.78SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:3915
ESKIMO::MAZE                                         12 lines   9-NOV-1993 06:35
                             -< cycle not ending >-
--------------------------------------------------------------------------------
WSTK.1 - Down for arm not lifting wafer at end of etch
         The arm was stuck in the down position and was not going back up 
         at the completion of the recipe.  Calibrated the arm to all points 
         on the table. After that we found the arm hitting the new edge 
         rinse ring and not continuing to the edge for the wafer lift. The 
         new rinse ring has a smaller opening for the carrier than the old 
         one. Look for scribes near the dispense arm in order to line rinse 
         ring up properly.  We later had problems with the wafer sticking 
         in the water track.  Adjusted the bowl jet, exit jet and the wafer 
         eject.  Cycled numerous wafers through without further problems.  
         Returned to MFG.

37.79SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:3913
ESKIMO::DAVIS                                        10 lines  11-NOV-1993 16:34
                           -< Backside air upgrade >-
--------------------------------------------------------------------------------
    The reps came in today to install an upgrade to the backside air
    modification.  The location of the backside air AO was changed from
    DT 2815 board to the analog rail zero position 10.  The EPROMs were 
    also changed to allow communication to the AO position.  PREV1
    (Backside air) was calibrated.  The .5 micron filter for the backside
    air needs to be changed but we have no such filter in the stockroom. 
    The rep said he would send one to HLO.  Due to the amount of time the
    system was powered off, the pads dried out and need to be changed.
    The system should be ran until the system has been fully tested and
    no problems remain. 
37.80SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:3912
JUNCO::FRANCIS                                        9 lines  11-NOV-1993 18:42
                          -< WSTK.1 - Wrong Eproms. >-
--------------------------------------------------------------------------------
WSTK.1 - Ran some wafers after the install and ran into a problem. The
    conditioner would not activate. It worked fine in manual. The problem
    is that the Rep was given the wrong Eproms. The Eproms are the same as
    the ones in WSTK.2 which is a different software setup. The Rep put the
    originals back in. Ran the conditioner and then some wafers through
    with no problems. The alarm DT2815 failure on the Alarm page can be
    ignored. The Rep said the correct Eproms may or may not arrive tomor-
    row. He said he'll give John Maze a call and let him know. Changed
    both pads and gave the system back to MFG.             
37.81SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:4014
ESKIMO::MAZE                                         11 lines  12-NOV-1993 14:49
                     -< arm problems and timing problems >-
--------------------------------------------------------------------------------

WSTK.1 _ Down for arm position unknown
         Found the arm down sensor no working.  Presently isolating the 
         loss of signal.
-------------------------------------------------------------------------------
HIGHLIGHTS:

WSTK.1 - Down for polish arm crashing into the conditioner arm
         Powered system down and back up.  Fault did not occur rest of day.
         Rep from Westech said the new software for tool will be in 
         tomorrow.  He will be first thing Saturday to install it. 
37.82SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:408
STRATA::FRANCIS                                       5 lines  12-NOV-1993 17:48
                       -< WSTK.1 Limit switch problem. >-
--------------------------------------------------------------------------------
    WSTK.1 - Replaced the Arm down limit switch. The wiper was broken and
    the old switch was worn out. A wiper didn't come with the new switch.
    Put the new one in without one. Just adjusted the switch block and 
    the switch works OK. Ran a few wafers with no problems. Gave it back 
    to MFG.
37.83SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:409
ESKIMO::FRANCIS                                       6 lines  16-NOV-1993 22:53
                         -< WSTK.1 - Sensor problem. >-
--------------------------------------------------------------------------------
    WSTK.1 - The water track sensor was sensing a wafer when there wasn't
    a wafer. Moved the sensor cable out of the way of the hood and Polish arm.
    Noticed that there was a washer missing on one of the bolts holding
    the water track in place, and one of the springs at the other end
    was missing. Replaced both and readjusted the PSC1 sensor for the 
    water track. Ran some wafers with no more problems. 
37.84SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:408
STRATA::FRANCIS                                       5 lines  18-NOV-1993 00:09
                        -< WSTK.1 Load sensor problem. >-
--------------------------------------------------------------------------------
WSTK.1 - All the Platen and Carrier alignments and the Carrier shaft height 
      were done. The shaft height has been adjusted to 0.85 inches. New pads
      have been put on. Tried some wafers and the sensor for the Load station
      is not seeing some of the wafers. Either the alignment of the Emitter and
      Receiver needs adjustment or the amp gain for the sensor needs adjustment.
37.85SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:4016
SCOMAN::DEJORDY                                      13 lines  18-NOV-1993 06:28
                   -< Wafers not loading/shuttel jam error. >-
--------------------------------------------------------------------------------
WSK.1:  Load wafers were not being sensed all the time. Adjusted the 
	thru-beam sensor amp 1 down. Cycled 20 wafers on the dec5cmos
	process. Checked out the load opperation in the I/O page and 
	the wafers are now being sensed.Production is currently doing 
        removal rate and partical checks now.    
	  







37.86SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:4112
STRATA::FRANCIS                                       9 lines  18-NOV-1993 22:52
                    -< WSTK.1 Sensor and C. arm problems. >-
--------------------------------------------------------------------------------
    WSTK.1 - The Unload station sensor needed to be adjusted. Some of the
    wafers were not being sensed. Turned down the exit bowl jet also.
    Another problem was that the Conditioner arm wasn't going to its home
    position right away. The arm would raise up stay there for about 4
    seconds and then go back down on the pad and go across. It would then 
    repeat the same thing again before going home. Adjusted FV38 to slow 
    down the Condition arm which was going up a bit hard and fast. Ran the 
    Conditioner several times without any problems. WUP.
    
37.87SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:4111
STRATA::GILMAN                                        8 lines  23-NOV-1993 22:48
                           -< Conditioner Problems >-
--------------------------------------------------------------------------------
WSTk.1 - Down for Primary Pad Conditioner not working properly.  The
Conditioner was going back over the Platen when the conditioning Cycle was
finished.  It was also bouncing on the Platen during the Conditioning Cycle.
I adjusted FV38 for the problem of the Conditioner not staying at Home at the
end of the Conditioning Cycle.  I adjusted FV12 to take care of the bouncing 
during the Conditioning Cycle.  Tool is back up.
                                     SDG

37.88SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:4117
STRATA::GILMAN                                       14 lines  28-NOV-1993 18:50
                  -< Wafers not being seen in unload station >-
--------------------------------------------------------------------------------
WSTK.1 - Down for not seeing Wafers in Unload Station.  I noticed something
very interesting when Wafers were being unloaded.  I was watching the
Input/Output Panel on the CRT and the "UNLD WAFER SENSE" was being highlighted
when a Wafer passed through the Light Sensor, but the Polish Arm behaved as if
the Sensor never saw the Wafer.  When I moved the Wafer back over the Light
Sensor the Polish Arm would then recognize the Wafer being seen in the Unload
Station.  I felt this may be a problem with the 5 V Supply.  I monitored the 
5 V input to one of the Analog I/O Boards and when the tool was at rest the
input 5 V's    was = 5.01v ; when the tool was running it was fluctuating
between 5.01v & 4.98.  This is within the Spec., but I adjusted the input 5v
to the Analog I/O Board to 5.1V (the upper limit to the spec.), to be on the 
safe side. I also adjusted the Sensor's Gain and the Exit Jet FV 10.  I then
ran 75 Wafers over the tool with no problems.  The tool is up.
                                                SDG
37.89SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:418
STRATA::FRANCIS                                       5 lines  29-NOV-1993 17:38
                        -< WSTK.1 - Cond. arm problem. >-
--------------------------------------------------------------------------------
    WSTK.1 - Down for the Conditioning arm bumping into the Polish arm.
    Adjusted FV30 and FV32 to slow down the arm from going out to the
    pad and back to Home. Also made a small adjustment to FV38 and FV39
    which is for the up/down motion of the Conditioning arm. Cycled
    10 wafers through with no problem. WUP.               BF/SG 
37.90SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:417
STRATA::FRANCIS                                       4 lines  30-NOV-1993 22:51
                     -< WSTK.1 - Replaced Cond. assembly. >-
--------------------------------------------------------------------------------
WSTK.1 - Was down for the Conditioner arm acting erratic. Replaced the
    whole Conditioner arm assembly with a rebuilt one. Execised the
    arm for about 20 minutes with no problems. Also, put on a new 
    End efector. WUP
37.91SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:417
ESKIMO::MAZE                                          4 lines   1-DEC-1993 14:57
                     -< wafers hanging up in water track >-
--------------------------------------------------------------------------------
WSTK.1- Down for wafers hanging up in the water track.
        Found the elevator out of alignment.  adjusted elevator height and 
        side to side.  Adjusted home switch and cycled numerous wafers 
        through without further problems.
37.92SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:4214
STRATA::MAZE                                         11 lines   6-DEC-1993 14:22
                         -< numerous process problems >-
--------------------------------------------------------------------------------
WSTK.1 - Down for loosing its mind again.
         The tool was trying  to polish a wafer on the final pad, but the 
         arm was up in the air and not on the pad.  The carrier was spinning 
         and the timer was counting down.  Aborted the step and unloaded 
         the wafer.  Started the process over again and this time the tool
         stopped while on the primary pad. The carrier was stopped,  the 
         platen was stopped, and the arm remained down.  The tool had an 
         alarm for arm position unknown.  Aborted the process and powered 
         down the tool.  After a few minutes the tool was powered back up and
         numerous wafers were cycled through without further problems.

37.93SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:4214
SCOMAN::DEJORDY                                      11 lines  21-DEC-1993 08:25
                         -< Shuttle jam and load cup >-
--------------------------------------------------------------------------------
	

WSTK.1 Machine went down for shuttle jam. Checked out the system and 
       found the shuttle jamed, reset the shuttle and tryed to run the
       system. System still errored, system thought there was not a 
       wafer present at load cassett, adjusted amp 1 down while in the 
       I/O page. Load cup was making a crashing sound, found that the
       lift to load sensor was being hit when the load cup went down.
       Adjusted the sensor and greased the shaft a little. Ran 15 
       wafers in the deccmos5 process with out any further problems.

37.94SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:4216
SCOMAN::DEJORDY                                      13 lines  23-DEC-1993 06:43
                              -< High particals >-
--------------------------------------------------------------------------------
WSTK.1	Machine was down for high patricles. Production ran a particle
	check and it came in high at 210. We ran some warm up wafers 
	and the particles came in spec, but the uniformity went out of 
	spec at 15.1%. ran 5 warm up wafers and checked the polish 
	rate again. Uniformity = 11% edge uniformity = 8.1%  
 	Production informed me that the TF1 measurement machine was 
	having auto focus problems, so they did all measurements on
	the nano.System is up and running.





37.95SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:4220
SCOMAN::TDYER                                        17 lines  23-DEC-1993 14:49
                           -< High Unif, CNTR FAST >-
--------------------------------------------------------------------------------
    
     Passdown from 12/22/93....High uniformity center fast 30%
    
        typical readings = center at 1600a/m edge at 1100a/m
    
    Check complete alignment, carrier run out was out by .019" carrier
    sweep waws out by .009".Both of these were alligned to within .002"
    Uniformity was still high at ~25%. Because the rate is so fast in the
    center we suspected that the carrier curviture was to great. We
    suspected the carrier film or curvature as the problem. The carrier
    press platen temp was droped by 10 degrees, from 275 to 265. This
    produced a 2.5u curve instead of a 4.5u curve. The polish uniformity
    came in at 11%.
    *NOTE- Normaly when the alignment is out, the edge rate speeds up..FYI
           That is why we looked towards the carrier or carrier film.
    
                                                   Tim
37.96SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:4212
SCOMAN::DEJORDY                                       9 lines  11-JAN-1994 07:38
                           -< Wafer unload problems >-
--------------------------------------------------------------------------------

WSTK.1	  Machine would not unload wafer. Went into the I/O page 
	  and manually unloaded the wafer. Ran 5 wafers through
	  the deccmos5 process with no further problems.





37.97SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:429
STRATA::MAZE                                          6 lines  11-JAN-1994 14:13
                             -< shuttle problems >-
--------------------------------------------------------------------------------
WSTK.1 - Down for smashed wafer in shuttle
         Cleaned the broken product wafer and cycled more wafers through 
         tool. Found the cassette present switch lifting the boat up when
         there was only a couple of wafer left.  Adjusted the switch height
         and cycled several boats of wafers through without further problems.
         Laura and Eric are experimenting with heavier boats.
37.98SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:428
STRATA::GALAN                                         5 lines  12-JAN-1994 23:53
                               -< Broken wafer >-
--------------------------------------------------------------------------------
WSTK.1 - Broken wafer in exit cassette.
         Removed exit cassette elevator and bowl. Cleaned up the wafer chips 
	 inside the exit station enclosure. Realigned bowl to arm, and adjusted
	 bowl height for smooth exit of wafer into cassette. Did not have time 
	 to cycle wafers to check for proper operation, tool is still down.
37.99SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:438
ESKIMO::FRANCIS                                       5 lines  19-JAN-1994 23:00
                          -< WSTK.1 Strange errors. >-
--------------------------------------------------------------------------------
    WSTK.1 - Down for intermittant "Unknown wafer- P arm. Ran a boat of
    wafers and the error ocurred three times. Adjusted power supplies
    1,2 & 3. All of them were a little low. A boat of wafers will need
    to be run to check for errors.
    
37.100SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:4310
STRATA::GILMAN                                        7 lines  24-JAN-1994 18:13
                       -< Clean Head Cycle not working. >-
--------------------------------------------------------------------------------
WSTK.1 - Operator informed us the Clean Head Cycle was not working again.  We
examined the input 5 volts going into the Card Cage and it was 5.28 V.  We also
checked the connectors for the +5v,+12v,-12, and Ground on the Mother board in
the Card Cage.  No problems were found and no adjustments were made.  Powered 
the system back up and the Clean Head cycle was working.

                                    SDG/BF     
37.101SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:4314
ESKIMO::FRANCIS                                      11 lines  27-JAN-1994 20:48
                     -< WSTK.1 Load cup errors from 1st. >-
--------------------------------------------------------------------------------
WSTK.1 - Problems with the system loading wafers onto the Load cup. Ran 
    30 wafers with only minor errors on the Wafer water track. Adjusted
    the Water track sensor PSC1. Adjusted the Load cup sensor PSC2 to be
    a little more sensitive. None of the 30 wafers hung up on the Load
    cup. The Shuttle worked fine. There wasn't any vacuum switches for the
    Carrier vacuum in Stock. The highest reading that the vacuum gauge
    went to was 20 psi. Didn't get any unknown wafer errors. Put the system
    back up and then down to PRO for Process engineering. There are some
    changes being made to the Process spec.
    
     
37.102SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:4316
SCOMAN::DEJORDY                                      13 lines  28-JAN-1994 06:39
                          -< Cascade flow increase. >-
--------------------------------------------------------------------------------
WSTK.1 	 Machine was down pro-eng. Checked out the exit cassette 
	 cascade flow,found out that hv2 did not controll the flow
	 for the exit cascade. found that sel 48 is what runs the 
	 exit cascade, we disconnected the solinode and connected 
	 the lines togeather using a 1/2 jayco elbow. the cascade
	 flow increased. we left it that way for production/eng to 
	 evaluate.






37.103SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:4328
ESKIMO::FRANCIS                                      25 lines  29-JAN-1994 00:41
                         -< WSTK.1 Pad temp too high. >-
--------------------------------------------------------------------------------
WSTK.1 - Down for a high pad temperature. Had to calibrate the Pad
       temperature sensor. At ~100 degrees F, it was reading ~134.
       Also adjusted the Carrier vacuum switch sensitivity down a
       little. Ran about 10 wafers with the DecCmos5 recipe. The 
       setpoint for the Primary pad temp was 85 degrees, but the 
       the temp would start at ~68 at the beginning of the polish
       cycle and then migrate up to 75 by the end of the cycle. Prior
       to running the wafers, we heated up the Primary platen to
       100 degrees and then checked the surface with temp meter to
       check the difference between the actual platen temp and what 
       showed on the screen for the pad temp. There was about a 15 to 
       20 degree difference. To get the  desired 85 degrees for the
       pad temp on the Primary, maybe the Primary heater will have to
       be programmed to go up to a much higher temp instead of the 70
       degrees that it usually is set to. Something that needs to be
       taken into account is that the platens take a long time to get
       up to temp. We didn't time how long, but when we changed the
       platen temp to go up 40 more degrees, it took maybe 15 minutes
       to get there. Even if the platen works together with the pad 
       temp sensor, by time the polish cycle finishes, the platen temp
       would only heat up a few degrees which would still be lower than
       the 85 degrees. The system had a water track error at about 12:30
       AM and was fixed. The system is back to MFG.
                                                       SP/BF
                         
37.104ELEVATOR ISSUESSUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:4414
STRATA::GILMAN                                       11 lines  29-JAN-1994 18:06
                   -< PROBLEMS,PROBLEMS,PROBLEMS,PROBLEMS. >-
--------------------------------------------------------------------------------
WSTK.1 - Down for "ARM NOT UP" Error, it occured when the Polish Arm was above
the Primary Platen. When I attempted to run the system, the Load Elevator was
not seeing all the Wafers in the Load Cassette and sometimes the Shuttle was 
getting Jammed. I increased the Angle for the Light Barrier Sensor and 
decreased the Gain on the Amplifier for this Sensor.  The Receive Elevator was 
also having problems. I made adjustments to the angle of the Cassette, angle
of the Exit Ramp, increased the N2 for Exit Ramp a little bit and lowered the 
hieght of the Home Position Sensor a little. When all of this was complete the
system ran with no problems.

                                           SDG
37.105SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:4410
STRATA::GILMAN                                        7 lines  30-JAN-1994 15:00
                         -< Low Uniformity Problem.\ >-
--------------------------------------------------------------------------------
WSTK.1 - Verify - Down for Low Uniformity. Manufacturing noticed the Primary
Platen Temp. was not in Spec.. I performed the Primary Platen Temp. Cal. during
the Weekly PM.  I found the Screen to be reading 10 Degrees below what the
actual reading was on the Temp. Probe.  I ran the DEC CMOS-5 Recipe and had no
problems with the system.  MQC's need to be checked again by Manufacturing.

                                           SDG
37.106SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:446
STRATA::POOLE                                         3 lines  31-JAN-1994 07:35
                           -< Unload wafer present >-
--------------------------------------------------------------------------------
 WSTK.1   - Down: Unload wafer present error.  Adjusted exit track sensor.
                  It took 5 or 6 turns to get sensor not sense a wafer.
                  Running warm-ups to verify fix.
37.107SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:4512
ESKIMO::FRANCIS                                       9 lines   1-FEB-1994 21:59
                          -< WSTK.1 High uniformity. >-
--------------------------------------------------------------------------------
    WSTK.1 - Was down for high uniformity. The Primary platen had to be 
    leveled. The Polish arm sweep was at 0.02". Adjusted it to .003", the 
    arm level for the underside was already at .003", and the Carrier 
    sweep was adjusted to .003". Had to place a couple of shims under the 
    carrier gear housing. The shaft height was at .852". The height wasn't
    changed. The down force was only off by 2 at 50 lbs and 300 lbs. Adjusted
    it anyways to the actual on the meter. Replaced both pads and cleaned
    the conditioner which was caked up some with slurry. The system is WUP.
       
37.108SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:4514
ESKIMO::FRANCIS                                      11 lines   4-FEB-1994 23:03
                            -< WSTK.1 Uniformity. >-
--------------------------------------------------------------------------------
    WSTK.1 - Down for uniformity problems. We decided to pull the Primary
    platen off. Found the small oring worn and replaced it. Used scotch bright
    to clean off the edge that sits on the large oring because of some
    slurry buildup. Noticed that there is a high spot on the platen which
    was brought down to .002". Finished up on the alignments. The Carrier
    shaft height is .851". A little later on during the shift, the water
    track sensor PSC1 sensitivity was increased. The flow valve, FV14A, 
    was turned in some because the shuttle was going into the Load cup too
    fast. Back to MFG.
                                                 TD/SG/BF
    
37.109SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:4514
ESKIMO::FRANCIS                                      11 lines  10-FEB-1994 17:18
                       -< WSTK.1 Conditioner bouncing. >-
--------------------------------------------------------------------------------
WSTK.1 - Down for the conditioner making loud noises as it sweeped across
    the pad, and it was bouncing up during its sweep. Was told by TD that
    one of the switches at the base of the conditioner has to be made the
    whole time the conditioner is on or the arm will go up as though it
    has finished polishing. That switch is the one closest to the platen.
    Loosened the bolts and moved it as close as possible towards the 
    conditioner motor. Also, bent the conditioner to change the angle to 
    the pad, and it stopped making the loud noises. Ran the conditioner for 
    about 10 minutes, and it was OK. WUP.
     
    
37.110SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:458
ESKIMO::FRANCIS                                       5 lines  15-FEB-1994 22:07
                        -< WSTK.1 Conditioner change. >-
--------------------------------------------------------------------------------
WSTK.1 - Down because the conditioner had to be changed. The Process
    spec has some new changes to it. Whenever the Primary pad or the 
    Conditioner or the Carrier reaches 300 counts, that particular
    item has to be changed. Put the system back up.
      
37.111SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:4515
LUDWIG::FRANCIS                                      12 lines  25-FEB-1994 18:04
               -< WSTK.1 - Unknown error and lock up of process >-
--------------------------------------------------------------------------------

WSTK.1 - Down for intermittant "Unknown wafer- P arm. Ran a boat of
    wafers and the error ocurred three times. Adjusted power supplies
    1,2 & 3. All of them were a little low. A boat of wafers will need
    to be run to check for errors. Readjusted PWS2 to 5.3 volts. Ran a
    boat of wafers without any problems. Changed the Conditioner and 
    gave back to MFG. 
         Then the tool went down for the arm was not raised up error. The
    arm was up but could not get the tool to abort the clean head cycle.
    Powered the tool down, and it worked OK afterwards. Ran a couple of
    boats of wafers without any problems. Returned the system to MFG.

37.112SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:4524
STRATA::GILMAN                                       21 lines  27-FEB-1994 18:39
                          -< Heat Exchanger problems >-
--------------------------------------------------------------------------------
WSTK.1 -DOWN- While performing Monthly PM two problems occurred.  The first was
the Carrier was accidentally dropped and damaged during removal for PM.  The
second was discovered when performing Temperature Calibration Checks.  We found
The Primary Heat Exchanger was not Turning on when the System sent a DI output
to it. The DI output was making it into the Heat Exchanger, but the heater was
not turning on. The Tank was topped off and the Float Switch was working
correctly.   We found the SSR's 3 & 4 were not turning on and allowing the 208V
AC to go to the Heater Core.  While trouble shooting we noted the Final Heat
Exchanger in the OFF Mode had 0 V at TB23-7 & TB23-8 to Ground, but when the
Primary was in the OFF Mode we found 24V at TB22-8 (to ground) and 0V at
TB22-7 (to ground).  In the CRTL Mode the Final Heat Exchanger had 24 V at
TB23-7 & TB23-8, while the Primary had 24.5V at TB22-7 & 22.7V at TB22-8.  This
voltage drop was across CR25.  The Voltage reading at TB22-8 goes through CR14
and then makes it to the SSR's. We swapped the Mechanical Relays, but it did
not help us find the problem.   We noticed both Heat Exchangers have the same
Functionality , but are wired differently from each other and do not necessarily
correspond with the Prints made available to us.  

Please note we used the Engineering Drawing # 372-36267; Heat Exchangers Power
Schematics.
                                  SDG/JB/KF
37.113SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:4614
JUNCO::FRANCIS                                       11 lines  28-FEB-1994 22:34
                      -< WSTK.1 No heat for the PRImary. >-
--------------------------------------------------------------------------------
WSTK.1 - Was down for the Primary heater was not coming on. At the start
    of 2nd shift, we were able to find the grounding problem for the
    Haet exchanger. Found that the wire for pin 1 of PL122 was discon-
    nected. Fixed that, but there was still no heat coming on. Checked
    everything from the SSRs and back towards the control signals. We
    finally found that the pico fuse for the Digital rail #2 output for
    the Primary platen temp control was open. Put in another one and
    toggled it on and off. Works fine. Checked the temp on the Platen TC
    at 75 degrees and it was about 74.6. Put on both pads and gave it back
    to MFG.
                                                        BF/TM 
37.114SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:468
STRATA::GILMAN                                        5 lines  18-MAR-1994 12:20
                           -< Exit Track problems. >-
--------------------------------------------------------------------------------
WSTK.1 - Down for Wafers not being seen in Exit Track. I found the N2 for the
Exit Jets was too high.  The N2 pressure was reduced, and 25 Wafers were run
with no Problems.  System is back to Manufacturing.
                              
                                      SDG
37.115SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:465
JUNCO::FRANCIS                                        2 lines  23-MAR-1994 17:15
                   -< WSTK.1 Faulty Load cup wafer sensor. >-
--------------------------------------------------------------------------------
WSTK.1 - Was down for a faulty fiber optic sensor at the Load cup. Replaced
    the sensor and ran some wafers through with no more problems.
37.116SHUTTLE AND LOAD CUP ISSUESSUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:4713
JUNCO::FRANCIS                                       10 lines  24-MAR-1994 20:17
                         -< WSTK.1 Multible problems. >-
--------------------------------------------------------------------------------
WSTK.1 - Was down for numerous problems. Pulled off some of the solenoids
    that operate the Shuttle and Load cup and made sure they were clean.
    It was suspected that some slurry may have gotten into them and 
    caused them to stick. Adjusted PSW2 from about 5 volts to 5.3 volts.
    There was also a problem with the Carrier wafer vacuum. All of these
    problems stopped after the voltage adjustment. The bulk system is now
    working. Ran some wafers through and then gave the system back to MFG.
    
                                                    TD/BF/TM
    
37.117SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:489
STRATA::FRANCIS                                       6 lines   5-APR-1994 20:50
                   -< WSTK.1 Polish arm lifting too quick. >-
--------------------------------------------------------------------------------
WSTK.1 - Down for the Polish arm lifting too quickly because of the 
    suction of the liquid on the pad. Adjusted FV1 which is for the 
    exhaust of the Polish arm piston and increased the piston pressure
    with PRV5. Ran several wafers and most of them lifted up OK. There
    were a couple of wafers that stuck a little. Back to Mfg.
     
37.118SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:4815
STRATA::FRANCIS                                      12 lines   6-APR-1994 22:47
                         -< WSTK.1 - Vacuum problem. >-
--------------------------------------------------------------------------------
WSTK.1 - The vacuum was staying on several seconds after the wafers were
    being polished. Found Solenoid 12 was sticking open which keeps the 
    vacuum on. Replaced it and manually operated the solenoid several
    times. The solenoid closed quickly each time. Ran some wafers, and the
    vacuum would go off according to the vacuum gauge, but the screen
    showed a vacuum. Made some adjustments to the pressure switch for the
    vacuum. The vacuum went off ok after the adjustments, but the vacuum 
    dropped off during the clean head part of the cycle which caused a
    missing wafer error. Another pressure switch has been ordered from the 
    Stockroom. Will be replaced on third shift.
    
                                    
37.119SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:4913
STRATA::GILMAN                                       10 lines   9-APR-1994 17:30
                      -< DI Water/Slurry in Exhaust Line >-
--------------------------------------------------------------------------------
WSTK.1 - Down for Water/Slurry coming out of Exhaust Line, which caused an ERT
Call.  About 3 Gallons of Water/Slurry was allready on the floor, and when I
pulled the End of the Exhaust Line about 2 more came out.  I called Tim Dyer
about the problem and he told me two things:  1) There has been a Hot Line call
made to Facilities to install a drain on the Exhuast Line, which will cure the
problem alltogether. 2) To turn off the DI Water to the Rinse Ring in the
Primary Platen, which will reduse the amount of DI in the Primary Platen Tub.
System is back to Manufacturing.
                 
                                         SDG
37.120SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:4914
SCOMAN::DEJORDY                                      11 lines  11-APR-1994 06:17
                -< Plattens not rotating and unload elevator  >-
--------------------------------------------------------------------------------

WSTK.1	 System's plattens would not turn on. Found the breakers 
	 triped. reseated the breakers and turned the plattens on.

	 Unload elevator not working properly. Adjusted the cassette
	 pitch cycled warm up wafers through the system without further
	 errors.




37.121SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:4912
STRATA::MAZE                                          9 lines  20-APR-1994 14:30
                      -< wafer not sensed in carraige ? >-
--------------------------------------------------------------------------------
WSTK.1 - Down for wafer not sensed on carrier
         MFG said the alarm was wafer not sensed in carriage. There is no 
         carriage on the tool, but checked out the wafer lift and carrier.
         Saw the soft water filter was showing a 15 lb loss between input 
         and output. Replaced the filter with a new one from stock. The old 
         filter and water sample was taken to Matt Fanara to get analyzed and
         see what the contamination is that is clogging our filters so 
         frequently.  15 wafers were cycled through the tool without any 
         further problems.   
37.122SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:496
STRATA::MENSAH                                        3 lines  21-APR-1994 10:39
                            -< WILL NOT CLEAN HEAD >-
--------------------------------------------------------------------------------
    DOWN FOR WILL NOT CLEAN HEAD; CLEARED WAFER MISSING ALARM AND RESET
             CLEAN HEAD CYCLE..CYCLE WAFERS USING CLEAN HEAD IN THE 
             ROUTINE WITH NO PROBLEMS.
37.123SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:4913
STRATA::GILMAN                                       10 lines  21-APR-1994 10:48
                         -< SHUTTLE NOT AT LIFT ERROR >-
--------------------------------------------------------------------------------

WSTK.1	 System errored for not sensing the shuttle at lift. Found
	 the actuator for the limit switch was broken. Removed and
	 replaced the actuator. System then errored for lift failure
	 adjusted the sensor for wafer lift at load. Cycled wafers
	 through the system doing load and unload only. 

                                            RD/SG/JM/RL


37.124SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:498
STRATA::MENSAH                                        5 lines  21-APR-1994 14:17
                              -< dropping wafers >-
--------------------------------------------------------------------------------
    Down for dropping wafers on the primary pad; checked  water supply,
             the pressure for input and output were the same..next checked
             carrier found scratch on the surface..replaced carrier and
             cycle wafers with no wafer dropping problems..all mqc's came
             in spec.
37.125SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:508
STRATA::FRANCIS                                       5 lines  21-APR-1994 21:29
                       -< WSTK.1 - Conditioner change. >-
--------------------------------------------------------------------------------
WSTK.1 - Changed the conditioner and adjusted the pressure switch for the
    Carrier vacuum. The vacuum would register on the screen after about
    20 seconds when a wafer was being loaded. Plus, the wafer wasn't always
    being sensed even though there was a wafer on the Carrier.
    
37.126UNIFORMITYSUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:5119
SCOMAN::DEJORDY                                      16 lines  27-APR-1994 06:40
                            -< Many many errors >-
--------------------------------------------------------------------------------

WSTK.1	 System went down for high uniformity and production tech 
	 claims he saw air bubbles in the slurry. Uniformity was 
	 at 16.1%. Checked the bulk fill system and found no problems
	 there. Checked the back of system and found two fittings 
	 loose on the return line tightened up same. System then 
	 errored for no wafer present in the carrier, adjusted the  
	 vacuum swtich. System then errored for wafer not seen at 
	 unload cassette,adjusted amp 1. Ran four warm up wafers 
	 with out any problems. System then would not see wafers 
	 at the load elevator. Powered system down and then restarted
	 system. Tryed to run some wafers  after second wafer system 
	 errored for p polish error wafer not in track and no wafer
	 at load. system is still down
                                               

37.127SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:5111
LUDWIG::MENSAH                                        8 lines  27-APR-1994 14:43
                           -< transport problems... >-
--------------------------------------------------------------------------------
    WSTK.1 Down for wafer transport problems; adjusted sensetivity for load
           indexer sensor, lift wafer sensor and unload indexer sensor..also
           reduced the wafer eject water pressure and adjusted wafer track.
           cycle 25 wafers with no problems...production did polish rate
           and uniformity was high..checked arm leveling, primary platen
           run out, and carrier run out they were all with in spec..replaced
           carrier button and the carrier...had to adjusted conditioner
           pressure to 12.5 PSI...Production to perform full mqc...
37.128SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:518
STRATA::FRANCIS                                       5 lines  27-APR-1994 21:50
                 -< WSTK.1 - Water track jets were too high. >-
--------------------------------------------------------------------------------
WSTK.1 - Was down for the Water track sensor not sensing the wafers. The
    wafers were going too fast into the cassette. Slowed down the bowl
    and exit water jets quite a bit. Also adjusted the Unload sensor a
    little. Now the wafers are going through at a slow pace. Ran 20 wafers 
    without anymore problems.
37.129SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:5110
SCOMAN::DEJORDY                                       7 lines  28-APR-1994 05:15
                          -< exit track adjustments. >-
--------------------------------------------------------------------------------

WSTK.1	 System did not go down in RTC but production called and 
	 they were having a problem with wafers exiting the unload	
	 track. Adjusted the pitch on the exit track,also adjusted
	 the bowl jet and the exit jet pressure they were set to 
	 low. system ran for 5 hrs and then exit pressure needed
	 a small adjustment.
37.130NOT UNLOADING WAFERSSUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:5111
STRATA::GILMAN                                        8 lines  30-APR-1994 18:30
                         -< system was very confused. >-
--------------------------------------------------------------------------------
WSTK.1 - Down for not unloading Wafers.  The system would finish Polishing on
the Final Platen, lift off the Platen and would not move after this.  There
were NO alarms and all the sensors which need to be lit for the Arm to unlaod
the Wafer were there.  Could not understand why the system was confused.  I
then powered the system down and back up. Once I did this it worked the rest of
the day with no problems.

                                    SDG
37.131SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:5213
LUDWIG::POOLE                                        10 lines   4-MAY-1994 08:01
                              -< DROPPING WAFERS >-
--------------------------------------------------------------------------------
 WSTK.1  - System dropped wafers on 2nd.  Checked warm-ups and found a
           few that were blue indicating no oxide left.  Cleared errors
           and ran new warm-ups.  Ran boat w/o error.  System later
           errored for no wafer on P-Arm.  Operator found wafer slightly
           off-center.  Carrier shim height was checked and was off by
           a few thousandths.  Also found two screws missing.  Carrier
           was corrected and system is running warm-ups.

 WSTK.2  - 12 to 5 volt DC to DC converter was installed.
 
37.132SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:5212
SCOMAN::DEJORDY                                       9 lines   9-MAY-1994 06:31
                         -< would not unload wafers. >-
--------------------------------------------------------------------------------

WSTK.1	 System would not unload the wafers.Found the cassette switch
	 not seated on the cassette. cleared the errors and removed 
	 wafer from the carrier using the I/O page. Restarted the 
	 process and ran 10 wafers with out further errors.	




37.133SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:529
SCOMAN::DEJORDY                                       6 lines  12-MAY-1994 07:48
                       -< Wafer not sensed at load cup >-
--------------------------------------------------------------------------------

WSTK.1	 System would not sense wafer in the load cup,Adjusted psc2.	
	 System would not sense wafer at unload cassette,Adjusted psc1
	 and the pressure for the bowl jets.Cycled 15 wafers with out 
	 further errors.
    
37.134SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:528
SCOMAN::DEJORDY                                       5 lines  13-MAY-1994 07:35
                           -< no wafer at load cup. >-
--------------------------------------------------------------------------------

Wstk.1 	System did not see wafer at load cup again. Watched the system 
	load wafers noticed that one wafer was not sitting flat in the 
	load cup.Started the process again system ran with out error.
    
37.135SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:525
STRATA::MOTT                                          2 lines  17-MAY-1994 08:09
                             -< Exit track error >-
--------------------------------------------------------------------------------
    WSTK.1-DOWN for wafer not sensed in exit track; Adjusted PSC1
    	   then ran 10 wafers with no further error.
37.136SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:5311
LUDWIG::GALAN                                         8 lines  24-MAY-1994 00:04
                        -< Bad servo-amp control board >-
--------------------------------------------------------------------------------
WSTK.1 	  -	Down for erratic arm movement. Polishing arm loses
    		track of its position and does not properly disengage from
    		the primary platen at the end of the polishing cycle.
   		Found servo-amp control board (mod no 215) to be bad,
    		presently reconfiguring new board.
			
                        					EG/TM
    
37.137SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:5314
SCOMAN::DEJORDY                                      11 lines  24-MAY-1994 07:36
                          -< Polish arm not moving. >-
--------------------------------------------------------------------------------
WSTK.1   Removed and replaced the polish arm servo drive board. Tryed
	 to set the servo motor current limit adjustments.Turned pot 
	 R-5 fully counterclockwise and adjusted pot R-4 feedback trim
	 pot until arm motor started to oscillate. Tryed to check the 
	 arm position when it swings out but the system would not 
	 cycle to any of the positions. Tryed to move the systerm  
	 manually but they would not work either. The servo drive 
	 board is mounted to two outher boards inside black case.
	 suspect that one or both of the outher boards are bad.System
	 needs further troubleshooting.

37.138SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:539
LUDWIG::MULDOON                                       6 lines  26-MAY-1994 21:52
                       -< REPLACED SERVO DRIVE ASSEMBLY >-
--------------------------------------------------------------------------------
    WSTK.1 -UP- Replaced servo drive assembly.  Had to adjust polish arm
    	current limits using R2 and R3(on servo drive board).  Check arm
    	positioning at all stations, no problems.  Ran two full boats to
    	verify no further problems.  Gave to production for MQC's.
    
    					TD/JM/SG/BF/TM
37.139SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:5315
SCOMAN::DEJORDY                                      12 lines   8-JUN-1994 08:20
              -< High edge uniformity and wafers not unloading. >-
--------------------------------------------------------------------------------

WSTK.1	  System went down for high uniformaty and would not unload 
	  wafers into the unload cassette. Changed the button after
	  talking to the production tech. The system would not unload 
	  wafers after being final polished.Found that the edge carrier 
          lift was off. Turned back on. Production will be doing MQC's 
 	  again.First check last night was polish rate 1087 uniformity
	  4.6% edge 18% and particle check was 0.this was before the 
	  button was replaced. 2nd MQC's were done and the polish rate
	  was 1235 uniformity -5.3% and edge was 5.8% system is still 
	  down
    
37.140SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:5314
SCOMAN::DEJORDY                                      11 lines   9-JUN-1994 05:50
                              -< High uniformity >-
--------------------------------------------------------------------------------
WSTK.1   System was down for high uniformity. Started the decision
	 tree.Production tech measured the carrier and found no 
	 problems with it. Changed the o-ring and button and had
	 MQC's checked on the system again. O-ring for the button
	 looked worn. MQC's came in spec polish rate was 1162,
	 uinformity 4.8 and edge uniformity was 11.3.





37.141SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:539
STRATA::GILMAN                                        6 lines  10-JUN-1994 14:36
                              -< Arm is laboring >-
--------------------------------------------------------------------------------
WSTK.1 - System went down for " Arm is laboring on edge lift". Found the
Primary Platen Center & Primary Polish Limit were both off.  Recalibrated the
positions for the Arm on the Primary Platen. Edge Lift worked smoothly after
the Cal. was done.  System is back to Manufacturing.

                                 SDG/RL/Red
37.142SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:5414
STRATA::GILMAN                                       11 lines  13-JUN-1994 12:22
                    -< Arm lifting hard of primary platen >-
--------------------------------------------------------------------------------
WSTK.1 - Down for Polish Arm having a difficult time (crashing) lifting off of 
the Primary Platen at the end of processing. The Edge Lift was working 
correctly as well as the Flow Valve settings for the Piston which raises and 
lowers the Arm.  The Polish Arm was only doing this on the Primary Platen.  
Found the Arm Stabilizer Piston was not applying enough pressure when it was 
activated.  Tried adjusting the air flow to the Piston, but it did not work. 
Putt some Vacuum Grease inside the Piston to help the Seal inside work better
and this corrected the problem.  The Arm is lifting A LOT more smoothly than it
was before.  The system is back to Manufacturing.

                                      SDG
37.143SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:549
STRATA::GILMAN                                        6 lines  17-JUN-1994 19:03
                          -< wrong downforce setting >-
--------------------------------------------------------------------------------
WSTK.1 - Down for a low pressure setting of the Conditioner downforce. 
Replaced Diamond Conditioner and Pad, then dialed in the Conditioner downforce
to 11 PSI.

                                       SDG/JB

37.144SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:5417
STRATA::FRANCIS                                      14 lines  22-JUN-1994 22:41
                     -< WSTK.1 Arm up/down cyclinder bad. >-
--------------------------------------------------------------------------------
WSTK.1 - Was down for Polish arm jurking up at the end of a Primary polish
    cycle. Checked the pneumatic air and it is 95 psi. It should be set 
    between 90 - 100 psi. Disconnected one of the air lines for the Polish
    arm up/down air cylinder and toggled the arm up and down to test Sol 1
    which supplies the air. The air came on instantaneously with each try.
    Tried different pressure settings with PRV5 and adjusted flow valve
    (FV1) with no real significant changes in the up motion of the Polish
    arm. Pushed against the arm which is attached to the air cylinder and
    then commanded the arm to come up. The air cylinder didn't actuate for
    about 6 seconds and then the pressure built up. Tried the same thing on
    WSTK.2 and the air cylinder activated within 1 second. The problem may
    be the air cylinder itself. Found the Vendor # and gave to TDYER since
    there are none in stock.
    
37.145POLISH ARM JERKING AT END OF CYCLESUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:5513
STRATA::POOLE                                        10 lines  23-JUN-1994 22:48
                                -< LATE ENTRY >-
--------------------------------------------------------------------------------

 WSTK.1 - Down for Polish arm jerking up at the end of a Primary polish
    	  cycle.  Changed primary pad.  Adjusted FV1 and FV6 and the jerking
          ceased.  Put system up and it went back down because the downward
          movement would intermittently slam.  Continued adjusting FV1 and 5
          arm movement is somewhat close now.  Need Tim to check it.  
          Also the lower seal in the polish arm is cracked and rotted. 
          There is no isloation between the polish arm inards and the pro-
          cess area.
            
37.146SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:5511
STRATA::FRANCIS                                       8 lines  23-JUN-1994 23:43
                     -< WSTK.1 Polish arm coming up hard. >-
--------------------------------------------------------------------------------
WSTK.1 - Was down for Polish arm raising up too hard. Adjusted FV1 in to
    have the arm come up slow, and then adjusted PRV5 in to reduce the air
    volume. Ran 20 wafers with a 30 second polish time, and every 2 to 3
    wafers had some trouble coming up but didn't slam up as hard as previous.
    Then 10 wafers were run with a 2 minute polish time per wafer, and the
    arm came up OK for all of them. The system is running some more wafers.
                                                          BF?TM
    
37.147SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:5515
STRATA::GILMAN                                       12 lines  25-JUN-1994 18:32
                        -< Arm up/down piston replaced >-
--------------------------------------------------------------------------------
WSTK.1 - Down for a Part (Air Piston for Arm Up/Down).  Installed the new Piston
and performed the Monthly PM for WW52, because I had to do all of the
Mechanical Alignments anyway after the new Piston was installed.  The PM is in 
the Incomplete Notes File, because the DI Water Samples & H202 Purge were not 
done. Installed new Pads on both Platens to test/adjust the new Piston and ran 
50 Wafers using the Patrical Recipe without any problems with the Arm slaming as
it lifted off the Primary Platen. The Partical Recipe was the one which was
giving us the most problems before. The system needs to have the Pads I put on
replaced and Full MQC's need to be done.  I cleaned the system when I was
finished, but it should be done again do ensure there are no partical issues.
    
                                                  SDG
37.148SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:567
STRATA::FRANCIS                                       4 lines   7-JUL-1994 17:46
                    -< WSTK.1 Polsh arm movement problems. >-
--------------------------------------------------------------------------------
WSTK.1 - Down for the Polish arm not responding to arm movement commands.
    Powered the system down. After the system was powered up, the Polish
    arm worked fine.
    
37.149SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:5615
SCOMAN::DEJORDY                                      12 lines  14-JUL-1994 06:02
                      -< Arm problem and loader problem. >-
--------------------------------------------------------------------------------
WSTK.1 	 System went down arm would not go to the exit station. Did
	 a calibration recall and tryed to run the system. System
	 ran the first wafer o-kay but then the send cassette drove
	 all the way down. found that amp 1 was sensing a wafer all
	 the time even when a wafer was not present. Adjusted Amp 1 
	 and ran 5 wafers through system without any further errors.






37.150SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:567
SCOMAN::DEJORDY                                       4 lines  25-JUL-1994 06:48
                      -< Final platen would not turn on. >-
--------------------------------------------------------------------------------
WSTK.1	   System went down for final platten would not turn on. Found
	   the 25 amp breaker was triped. Reset the breaker and rebooted
  	   the system. System ran without failure.

37.151SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:5612
SCOMAN::DEJORDY                                       9 lines  29-JUL-1994 06:26
                           -< polish arm problems. >-
--------------------------------------------------------------------------------
WSTK.1	  System went down for polish arm comming up to fast. Ran 5 
	  wafers on the decmos5 recipe and watch the polish arm, 
	  noticed that the carrier was sticking to the primary pad
	  due to suction. Talked with second shift and they said that
	  the carrier curverture is only about half of what it's 
	  supposed to be. I told production to change the carrier and
 	  primary pad and to run MQC's. We changed the carrier and the
	  conditioner,and the primary pad, ran numerous wafers with
	  no problems with the polish arm........
37.152SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:5711
STRATA::GILMAN                                        8 lines  29-JUL-1994 09:26
                             -< CYCLE NOT ENDING >-
--------------------------------------------------------------------------------
WSTK.1 - Down for system locking up during a cycle.  Found the "ARM UP" Switch
was not being made ever time at the end of a cycle.  So the system would
show a cycle continually running, because it was waiting for the last sensor it
needed to see, the "ARM UP" Switch to end the cycle.  Adjusted the position of
the ARM UP Switch, so it was more sensitive.  Ran a Cassette of Wafers with no
problems.  The system is back to Manufacturing.

                                  SDG/RL
37.153SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringTue Oct 15 1996 23:5710
STRATA::GILMAN                                        7 lines  29-JUL-1994 14:10
                              -< unload problems >-
--------------------------------------------------------------------------------
WSTK.1 - Down for Wafers not exiting the Unload Station.  Adjusted the weights
on the Arm to ensure the Wafers would exit smoothly.  Ran a dozen Wafers with
no problems.  System is back to Manufacturing.


                                       SDG

37.154SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:1914
STRATA::FRANCIS                                      11 lines   4-AUG-1994 18:08
                   -< WSTK.1 Unload elevator not stepping. >-
--------------------------------------------------------------------------------
WSTK.1 - Was down for intermittantly putting two wafers into a slot and
    for the Polish arm slamming up. Ran 30 wafers through without either
    problem occuring. The Polish arm doesn't come off the pad right away,
    but it doesn't come up hard. Did notice that once all the wafers were
    finished, the elevator would sometimes hesitate on the way up. Found
    that if a wafer was sticking a little bit out from the back of the 
    cassette, the wafer sensor on the water track picked up on the wafer.
    There is no real need to adjust the sensor amp since the amp is very 
    sensitive to adjustments and no problems will occur from the situation.
    
                                                                   BF
37.155SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:197
LUDWIG::GILMAN                                        4 lines   5-AUG-1994 14:26
                             -< unload problems. >-
--------------------------------------------------------------------------------
WSTK.1 - Down for Wafers not going into Unload Cassette.  Adjusted Arm Level &
ran a Cassette of Wafers with no problems.

                                         SDG
37.156SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:198
STRATA::FRANCIS                                       5 lines   8-AUG-1994 22:25
                      -< WSTK.1 Wafer loading problems. >-
--------------------------------------------------------------------------------
WSTK.1 - Down for vacuum not being achieved during a wafer load onto
    the carrier. Adjusted the position of the load cup, because the 
    carrier wasn't fitting into the load cup all the way. Cycled some
    wafers and they loaded good. WUP.
     
37.157SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:197
STRATA::FRANCIS                                       4 lines   9-AUG-1994 17:57
                     -< WSTK.1 - Water slide adjustments. >-
--------------------------------------------------------------------------------
WSTK.1 - Down for Endpoint experiments and continued adjustments on the
    water slide. The experiments are done for now and finished up on the 
    wafer slide adjustments. Back to MFG.
                                         
37.158SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:1914
STRATA::POOLE                                        11 lines  10-AUG-1994 06:56
                      -< POLISH ARM down switch failure >-
--------------------------------------------------------------------------------

 WSTK.1     System errored for Polish arm not down.  Arm was in down posi-
            tion.  Removed cover to check micro-switch position and it was
            made.  Toggled micro-switch manually while obsering input/output
            screen.  Arm down would not come on.  Checked switch with meter
            and initially it wouldn't toggle.  Switch started working after
            I checked it out.  Put system up and it then failed again.  This
            time the I/O screen showed the polsih arm always down.  Checked
            stock, no part in stock.  Switch has # 91929 on it.  Could not 
            locate part on the Westech parts drawing I had so not sure of 
            the Westech #.
37.159SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:206
STRATA::FRANCIS                                       3 lines  11-AUG-1994 21:29
                       -< WSTK.1 - High bacteria count. >-
--------------------------------------------------------------------------------
WSTK.1  - The Final and Unload stations had a high 1st bacteria count.
    Flushed out the system with H2O2 using the DI canister in back before
    lunch. Took a sample for QA after lunch.
37.160SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:2019
STRATA::GILMAN                                       16 lines  14-AUG-1994 16:44
                              -< PCW Water Leak >-
--------------------------------------------------------------------------------
WSTK.1 & WSTK.2  - The PCW Solenoid Valves in the Heat Exchangers were 
vibrating so strongly when activated, a 2 Inch PCW Water Line had been damaged.
Site Services contacted us early in the morning and infomred us of the 
situation. They also infomred us the fix is temporary, so any further strong 
vibrations in the PCW Line may result in the PCW Tank being emptied into the 
Westech Room. A different Solenoid Valve was tried in the Primary Heat 
Exchanger in WSTK.1 and it worked ten times smoother than the existing style.  
The only problem is there was only one of these 24 VDC Valves which could be 
used in the Stock Room.  A new Solenoid Valve of the existing style was put 
into the Final Heat Exchanger of WSTK.1, but it worked just as poorly as the 
one it replaced. The system has the Final Heat Exchanger turned off as well as 
the Solenoid itself is disconnected.  Tim Dyer was contacted at home and he
will be addressing the issue on Monday morning.  WSTK.1 can be run as is, and 
this information was relayed to production.

                                    SDG 
37.161SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:2010
STRATA::MAZE                                          7 lines  16-AUG-1994 14:43
                           -< chilled water problem >-
--------------------------------------------------------------------------------
STK.1 - Scheduled down
         The process chilled water PVC piping being repaired.
         A different type of 24 volt solenoid was installed in the heat 
         exchanger. The return shut off valves are turned in order to 
         restrict the flow which in turn will reduce the water hammers.  If
         this works. the valves are to be installed on WSTK.2  **NOTE***
         the chilled water will be turned back on at 3:00 pm. 
37.162SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:208
STRATA::FRANCIS                                       5 lines  16-AUG-1994 17:26
                            -< WSTK.1 Water pipes. >-
--------------------------------------------------------------------------------
WSTK.1 - Facilities finished with repairing the PVC piping. Adjusted the
    flow of the main cooling water valve from ~90 psi to ~60 psi. Then
    toggled each platen cooling valve on and off, and the pipes didn't
    hammer. Gave the system back to MFG.
     
37.163SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:2111
SCOMAN::DEJORDY                                       8 lines  25-AUG-1994 07:30
                              -< Pre-wet problem. >-
--------------------------------------------------------------------------------
WSTK.1	   System went down for not pre-wetting. Checked out the system 
	   and found no problem with the pre-wet. Cycled 10 wafers with
	   no problem on the warmup recipe. Production ran system all 
	   night. 




37.164SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:219
SCOMAN::MOTT                                          6 lines  30-AUG-1994 23:33
                               -< System Lockup >-
--------------------------------------------------------------------------------

WSTK.1	System locked up and would not respond to operator input.
	Powered system down and re-booted tool, ran fine there after.


						Dejordy                             
37.165SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:2118
SCOMAN::DEJORDY                                      15 lines  31-AUG-1994 06:30
                    -< Cascade modification on exit track. >-
--------------------------------------------------------------------------------
WSTK.1	   System did not go down in RTC but the exit track cascade 
	   modification was completed. Modified the 3/8 supply line
	   to 1/2 supply. The 1/2 " line used to supply the exit track 
	   is located under the front part of system under the exit 
	   track. Tapped the supply line for the di water vegatable spray 
	   hose and set the cascade flow to original flow. The ball 
	   valve is about half way closed. Could not install the
	   ball valve where the hand valve was located with out 
	   drilling and tapping the mounting plate. This will have to  
           be done on a later date.





37.166SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:2114
               <<< SCOMAN::SILVER$:[NOTES$LIBRARY]ETCH.NOTE;4 >>>
                                   -< ETCH >-
================================================================================
Note 96.205                     WESTECH PASSDOWN                      205 of 437
STRATA::MULDOON                                       7 lines  31-AUG-1994 18:30
                           -< excessive exit flows >-
--------------------------------------------------------------------------------
WSTK.1  -  The system went down for wafers not being sensed at exit
	   cassette.  Found that the flows for the exit track, wafer
	   eject, and bowl eject were too high.  Adjusted flow valves
	   9,10,11 (2nd,3rd,and 4th from the left).  Returned to 
	   production.

	 					TMM
37.167SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:229
SCOMAN::MOTT                                          6 lines  19-SEP-1994 07:26
                             -< MDU error code B4 >-
--------------------------------------------------------------------------------
    	
WSTK.1	 MDU gave an error code "B4". Chem. mix was not in at the time and 
	 error could not be cleared. "Slurry supply empty" is the probable
	 cause for the alarm.

    					BOB/ROB/MOTT
37.168SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:226
STRATA::CLOUTIER                                      3 lines  19-SEP-1994 10:12
                     -< BULK FILL SENSOR PROBLEM RESOLVED >-
--------------------------------------------------------------------------------
    WSTK.1 - Down for bulk fill sensor error #64.  Bulk fill reset sensor
        and had bulk fill operating right after passdown.  
                                                      LC
37.169SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:228
STRATA::CLOUTIER                                      5 lines  19-SEP-1994 10:15
                         -< BROKEN CONDITIONER SCREEN >-
--------------------------------------------------------------------------------
    WSTK.1 - Down for broken conditioner screen under the primary platen.
        Removed the broken conditioner from under platen and set system 
        in idle mode with assistance from production tech.
    
                                                    LC
37.170SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:229
STRATA::CLOUTIER                                      6 lines  20-SEP-1994 18:27
               -< NEW HARD DRIVE AND WIRING UPGRADE COMPLETED >-
--------------------------------------------------------------------------------
WSTK.2 - Down for new hard drive and controller.  Installed new PWS2 and wiring
    upgrade for new hard drive.  PWS2 is now both 5v and 12v adjustable.  Sys-
    tem is now a 386 versus a 286.  System is ready for running.  Needs to be 
    tested.  

                                                           MS/LC
37.171SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:2211
SCOMAN::MOTT                                          8 lines  28-SEP-1994 07:31
                      -< DIAMOND GRIT CONDITIONER NOISE >-
--------------------------------------------------------------------------------

WSTK.1	Went DOWN for "Excesive noise durring primary platin conditioning 
	cycle". First adjusted and excersised the conditioner, this 
	attempt helped, yet problem reoccured after ~ 20 cycles.
	Then replaced the Diamond grit screen conditioner.
	Verified fix by performing ~ 10 condition cycles with
	no noise present.                      MM

37.172SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:239
SCOMAN::DEJORDY                                       6 lines   3-OCT-1994 19:22
                           -< Slurry bulk problems. >-
--------------------------------------------------------------------------------

WSTK.1   System did not go down in RTC but slurry alarm went on and
	 the MDU also was alarming. After about 3-5 min all alarms 
	 went off and system was operating normally. I think the
	 barrel switched over.

37.173SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:236
STRATA::GILMAN                                        3 lines  11-OCT-1994 06:54
                                  -< NO PCW >-
--------------------------------------------------------------------------------
WSTK.1 & WSTK.2 - Both down for no PCW.  Both systems have the Heat Exchangers
	turned off through the PROCESS TEMP/PROCESS VARIABLE page in the
	software. 
37.174SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:238
STRATA::B_RIVERS                                      5 lines  18-OCT-1994 22:31
                           -< WSTK.1 DOWN NO SLURRY >-
--------------------------------------------------------------------------------
    WSTK.1-DOWN for no slurry in primary ....ran line to sol.22 into bucket
    	no clog, checked for 24vdc on sol.24 did not have 24vdc. Changed 
    	process to CMOS5 and checked for 24vdc and it was present, activated
    	sol.22 several times and had no further problems. Turned system
    	over to production for MQC's.
37.175SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:236
STRATA::B_RIVERS                                      3 lines  21-OCT-1994 06:14
                          -< WSTK.1 DROPPING WAFERS >-
--------------------------------------------------------------------------------
    WSTK.1-Down for dropping wafers and one broken...cleaned broken wafer,
    	operator was running wafers with no oxide on them. Changed to good
    	wafers and no further problems.
37.176SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:238
SCOMAN::MOTT                                          5 lines  23-OCT-1994 07:35
                            -< Bulk fill off line >-
--------------------------------------------------------------------------------

WSTK.1	Slurry bulk fill off line. (Big red lamp to the right of the CRT)
	Called Chem Mix/Bulk Fill, and discovered that the slurry drum
	was being changed. After change, the lamp went out. System had no
	further problems.				MM
37.177SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:2312
STRATA::FRANCIS                                       9 lines  30-OCT-1994 06:18
                         -< WSTK.1 - Dropping wafers. >-
--------------------------------------------------------------------------------
WSTK.1 - Was down for dropping wafers as the Polish arm was lifting.
	Adjusted FV1 to slow down the upward motion of the Polish arm.
	A wafer was run, and the problem was still there. The vacuum 
	was climbing up to about 18 inches of water before lifting up, 
	and the Polish arm was also going very close to the edge before 
	lifting. The carrier was taken off and measured. It had almost 
	no curve on it. Once another carrier was built and put on, 20 
	wafers were run without any of them dropping off. Gave the system 
	back to MFG.
37.178SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:249
SCOMAN::MOTT                                          6 lines   1-NOV-1994 08:22
                              -< Stopped Process >-
--------------------------------------------------------------------------------

WSTK.1	Stopped process after picking wafer from load cup. Found that
	the cycle mode select was in the manual mode. Placed in continous 
	mode then watched 5 wafers run with no problems.	Mott 
        Annual PM completed.			BF

37.179SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:2418
STRATA::MAZE                                         15 lines   3-NOV-1994 07:12
                            -< NEGATIVE UNIFORMITY >-
--------------------------------------------------------------------------------
WSTK.1 - Down for negative uniformity and for dropping wafers on primary pad
         Found when the stabilizer pin was engaged the arm would jam down 
         into the exit track.  Removed all the pads and checked arm alignments.
         Platen run out and sweep were good at .001 and .002.  checked the
         carrier runout and could not read the indicator due to the 
         misalignment.  Found the arm was at a 1/2 in tilt towards the 
         carrier.  Roughly straightened the arm with the load cell so it 
         was parallel to the platen.  Was able to keep the indicator within
         .010.  Adjusted the arm some more and was able get a steady .004 
         deflection.  Checked the down force followed by the arm balance.
         Put the tool back together and MQC's were ran.   Removal rates were
         1135, unif=11.7%, edge unif= 2.5 with particles at 30 total.System 
         placed to WUP.

  
37.180SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:249
SCOMAN::GILMAN                                        6 lines   7-NOV-1994 07:01
                            -< bulk fill off line >-
--------------------------------------------------------------------------------
WSTK.1 - Down for Bulk Slurry Off-line.  Tried to contact some one on call from
Bulk Fill, but no one answered.  Finally this morning we got a hold of some one
to resolve the issue.


                                           RL/SG
37.181SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:2410
STRATA::CLOUTIER                                      7 lines   8-NOV-1994 17:00
                   -< PRIMARY PLATEN TUB CLEANED THOROUGHLY >-
--------------------------------------------------------------------------------
    WSTK.1 - Down for particle problem and waiting for new rinse ring. 
    	     Matt V. asked for the tub for primary platen be thoroughly
    	     scrubbed to get the machine to possibly run this evening.
    	     Scrubbed the tub and rinsed thoroughly.   Laura Prowell 
    	     mentioned that system was to stay down until rinse ring is
    	     reinatalled.  Down to PART.
                                                    LC/KT
37.182SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:246
LUDWIG::REDRIVERS                                     3 lines  10-NOV-1994 07:22
                      -< WSTK.1 CARRIER VACUUM PROBLEM. >-
--------------------------------------------------------------------------------
    WSTK.1 - Down for no vacuum on carrier...replaced wafers with ones
    	with enough oxide on and vacuum problem solved. Would not load
    	wafer into load cup. Reset system and everything worked fine.
37.183SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:246
STRATA::BOUCHER                                       3 lines  12-NOV-1994 19:17
                -< installed new primary platen rinse ring... >-
--------------------------------------------------------------------------------
WSTK.1 -  Completed weekly pm, also installed new primary platen rinse ring
         that arrived today. System is currently running fine.

37.184SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:257
SCOMAN::GILMAN                                        4 lines  13-NOV-1994 02:58
                              -< DROPPING WAFERS >-
--------------------------------------------------------------------------------
WSTK.1 - Down for dropping Wafers on Primary Platen during Edge Lift.  Found
	the Edge Lift to be off.  Re-calibrated the Edge Lift Positions for
	both Platens.  This did not totally cure the problem.  So the Carrier
	was replaced and the system ran with no further difficulties.
37.185SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:2510
STRATA::CLOUTIER                                      7 lines  14-NOV-1994 18:45
                     -< SLURRY BUILDUP UNDER THE LIFT CUP >-
--------------------------------------------------------------------------------
    WSTK.1 - Down for slurry buildup under lift cup causing erratic shut-
             tle movement.  Removed the shuttle cup and thoroughly cleaned 
             under all mechanisms.  Rinsed all components down, wiped load 
             area thoroughly.  Ran 7 wafers to insure smooth operation of 
    	     shuttle and returned to production.
    
                                                           LC/RD
37.186SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:256
STRATA::REDRIVERS                                     3 lines  17-NOV-1994 07:29
                         -< WSTK.1 VACUUM ALWAYS ON  >-
--------------------------------------------------------------------------------
    WSTK.1 - Down for wafer on carrier error (vacuum always on)...Read vac.
    	     guage and there was no vacuum present checked vacuum switch
    	     and it read on, replaced switch system back to production.
37.187SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:2511
SCOMAN::GILMAN                                        8 lines  22-NOV-1994 06:52
                                -< water leak >-
--------------------------------------------------------------------------------
WSTK.1 - Down for large DI Water leak.  Operator noticed leak and shut off DI
	Water in back of system.  Before I made it to the system an ERT Call
	was placed for liquid raining down in DI Waste Treatment.  The sorce of
	the liquid was from the DI Water Leak on WSTK.1.  Found the Tubing for
	the Primary Platen Rinse Ring to have split.  Replaced the Tubing with
	new Teflon tubing.  System did not spring another leak afterwards.


37.188SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:257
SCOMAN::GILMAN                                        4 lines  28-NOV-1994 06:58
                           -< shuttle hitting wafer >-
--------------------------------------------------------------------------------
WSTK.1 - Down for Shuttle hitting into Wafer in Load Cassette.  The Send
	Elevator did not look like it was in the HOME Position.  Homed 
	the Elevator and cycled Wafers over system without an error.

37.189SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:2621
STRATA::MAZE                                         18 lines   1-DEC-1994 19:27
                             -< low removal rate >-
--------------------------------------------------------------------------------
WSTK.1 -   Down for low removal rates
         Completed the monthly pm on tool  Found a couple things out of 
         spec.  The down force at 200 lbs was 10 lbs low.  Calibrated the down 
         force for proper indications.  Found the platen temps were 10 deg
         low.  The carrier rotation was out of spec as well. Removed the shim
         in the gear box and was able to adjust the rotation with the
         turnbuckle.  There is a few things that still need to be done:

   1. The water for the bowl jet is not turning off in the I/O page
   2. The wafer eject takes to long to turn off in the I/O page
   3. The front cover interlock is not making contact and needs fixed
   4. The carrier rotation was showing 10 rpm when calling for 5
   5. The platen rotation RPM's needs to be checked
   6. The  surgical Pump flows need to be confirmed

*note*  a slurry sample was taken to the lab for % of solid measurement.**


37.190SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:2610
STRATA::CLOUTIER                                      7 lines   3-DEC-1994 06:45
                       -< uniformity and mqc's in spec >-
--------------------------------------------------------------------------------
    WSTK.1 - Down for low uniformity at the edge at end of C shift.  
             After repairs were completed and a set screw was replaced 
             for carrier the uniformity was still low.  It was decided 
             to rebuild a carrier with a 20 micron instead of a 30 micron
             carrier.  We were told that MQC's just came in spec.  Back
             to production.
                                                     
37.191SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:266
STRATA::FRANCIS                                       3 lines   4-DEC-1994 01:43
                            -< WSTK.1 Shuttle jam. >-
--------------------------------------------------------------------------------
WSTK.1 - Down for a shuttle jam. The shuttle was a little cock-eyed.
    	adjusted it and ran 10 wafers without any problems. Gave the 
    	system back to MFG.
37.192SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:2615
SCOMAN::MOTT                                         12 lines  13-DEC-1994 07:32
                      -< Process stoped at load station >-
--------------------------------------------------------------------------------

WSTK.1	Went DOWN for, "Process stopped at load point". (Polish arm 
	would lower to pick up wafer, yet would not rise after vacuum 
	was achieved). Re-started process while monitoring wafer status 
	screen and found that "Wafer present at carrier" input
	never toggled. (Gauge was at 20" of mercury). Removed 
	polish arm cover and checked continunity at the vacuum 
	switch. Vacuum switch checked out fine. Reset tool with 
	same systems. Tracked wires back to the terminal block,
	and found a loose wire. Re-connected and verified fin by running 
	25 wafers. 

37.193SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:265
STRATA::REDRIVERS                                     2 lines  13-DEC-1994 21:35
                          -< wstk.1 down for shuttle >-
--------------------------------------------------------------------------------
    WSTK.1 Down for shuttle movement was sticky...Cleaned the guide rods of
    	slurry and lubricated with krytox,no further problems.
37.194SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:265
YIELD::PROWELL                                        2 lines  19-DEC-1994 14:40
                                 -< bulk fill >-
--------------------------------------------------------------------------------
    Bulkfill went down for 1/2 hour this morning while liquid level sensor was
    calibrated. First lot after that was b50526.
37.195SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:279
SCOMAN::GILMAN                                        6 lines  19-DEC-1994 23:06
                           -< black powder found?! >-
--------------------------------------------------------------------------------
WSTK.1 - Down for leaving a lot black powder on Final Platen.  When I had
	arrived to the system the operator had cleaned up the mess.  He
	informed me the Final Platen & Final Basin was covered withg a black 
	powder.  We believe it was coming from the Carrier, because it looked 
	to be worn down.  The operator replaced the Carrier.   Gave system
	back to MFG.
37.196SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:2712
STRATA::DEJORDY                                       9 lines  20-DEC-1994 19:00
                          -< Shuttle blade problem. >-
--------------------------------------------------------------------------------
WSTK.1 	 System went down for shuttle blade end came off. Removed the 
    	 shuttle blade and re-epoxyed the end on the blade. Checked 
    	 out load sequence and made adjustment to the load blade for
    	 centering. Made slight adjustment to the wafer sensor bracket.
    	 Adjusted amp 1 and cycled 25 wafers through system. System 
    	 went down again for not picking first wafer. Adjusted AMP 1 
    	 to be more sensitive. Cycled 33 wafers with out further problems.
    
     
37.197SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:2717
STRATA::DEJORDY                                      14 lines  21-DEC-1994 18:30
                             -< Loader problems. >-
--------------------------------------------------------------------------------
WSTK.1 	 System went down for shuttle blade was hitting wafer in slot 
    	 1. Adjusted the limit switch for the home position on load
      	 indexer.Found wafer was not centered in the load cup.  Ad-
    	 justed the shuttle blade and replaced both screws for load 
    	 blade. Noticed that the wafer lift assembly was wobbling when 
	 wafer was being picked from shuttle blade.  Found Both cylinders
    	 had loose brass top plates.  Tightened plates and wobble was 
    	 eliminated.  System alarmed for load cup not in position.Adjust-
    	 ed the load cup position sensor till it was activated on the 
    	 I/O page. Adjusted the wafer centering for the shuttle blade
    	 by adjusting the shuttle blade hard stop.  Cycled 25 wafers 
    	 without further errors.  Ran 3 wafers at positions 1,15,25
    	 to check out if AMP 1 was working correctly,system had no errors
    	 gave machine back to production.
37.198SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:2710
STRATA::FRANCIS                                       7 lines   1-JAN-1995 23:33
             -< WSTK.1 Wafers not being seen at the Load station. >-
--------------------------------------------------------------------------------
WSTK.1  - Down for wafers not being seen at the Load station. Made 
    	adjustments to the Lift cup, the Shuttle, the amp for the 
    	through beam sensor for the Load station, and the position
    	of the sensor itself. Ran several boats of wafers with random
    	slots open. No more problems occurred. WUP
                                                    BF/MT
    
37.199SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:2718
LUDWIG::MAZE                                         15 lines   4-JAN-1995 12:27
                     -< water leak and bad vacuum switch >-
--------------------------------------------------------------------------------
WSTK.1 - Down for rusty solution on top of the carrier
         Found the water seal between the union and the carrier shaft leaking
         water.  Did not have another seal in stock so i took a sand stone and
         removed the gouges and indentations.  Assembled the union back to
         the carrier shaft and was able to draw 25 inches of vacuum with wafer
         and wafer eject did not leak into the arm.  Started to run a wafer
         through the system and got an alarm for no vacuum on the carrier.
         The gauge was showing 25 inches but the display was at zero.  Tried
         to adjust the gauge for proper indication,, but was unable to. 
         Removed the gauge and tried an adjustable atmosphere switch for the
         8300's, but it did not work as well.  I could get it to toggle both
         open and closed but each time I could only do it while turning the
         thumbwheel on the switch.  The switch is to sensitive for this
         application.  There is no 10"HG switch in stock. The Westech part
         number is HT170030.
37.200SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringWed Oct 16 1996 00:275
LUDWIG::REDRIVERS                                     2 lines   4-JAN-1995 23:08
                            -< WSTK.1 VAC. PROBLEM >-
--------------------------------------------------------------------------------
    WSTK.1 Down for vac switch replacement....replaced vac switch syatem 
    	   turned over to production for MQC.
37.201SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 05:545
STRATA::REDRIVERS                                     2 lines   5-JAN-1995 22:21
                      -< WSTK.1 SHUTTLE DROPPING WAFERS >-
--------------------------------------------------------------------------------
    WSTK.1 Down for shuttle dropping wafers...adj. wafer sensor and shuttle
    	yaw.
37.202SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 05:5418
STRATA::MAZE                                         15 lines   6-JAN-1995 19:23
                          -< droping wafer in loader >-
--------------------------------------------------------------------------------
WSTK.1 - Down wafers falling off shuttle blade
         Found the shuttle blade was jamming the wafer into the back of the
         load cassette.  Tried to make adjustments and found the jam sensor 
         set screws were tightened to their stops.  Lostened the set screws and
         was able to get the shuttle to indicate a jammed condition.  Adjusted
         the shuttle stops for proper shuttle placement.  Removed the lift cup
         and disassembled due to slurry build up.  Cleaned the lift cup parts
         and load station with ISO.  Reassembled the cup and made minor
         adjustments to the lift sensors and the exit jets.  Later the tool went
         down for rust dripping down on the carrier.  Removed the carrier and
         the two seals above it.  Found residual water and rust from water leak
         previously in the week.  Clean up the parts and reassembled the
         carrier. 
                              jmz/mt
    
37.203SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 05:548
STRATA::DEJORDY                                       5 lines   8-JAN-1995 18:37
                 -< Particle problem and Scratches on wafer. >-
--------------------------------------------------------------------------------

WSTK.1    System was having particle problem and scratches were seen
	  on wafers.System was cleaned by production and a new carrier
	  was installed. MQC's were run and the system passed all 
	  checks. Produtcion ran without further problems.
37.204SYSTEM NOT LOADING WAFERS, PARTICLESSUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 05:5533
STRATA::DEJORDY                                      30 lines   9-JAN-1995 19:30
                               -< Many errors. >-
--------------------------------------------------------------------------------

WSTK.1    System went down for unload cassette not loading wafers
	  properly. Found that the teflon exit track was not pitched
	  properly. Adjusted the pitch of the track and checked it 
	  with the alignment tool, cycled 20 wafers doing just the 
	  load / unload. Found the D 40 film was causing a particle 
 	  problem. The center of the 40 film was worn cause is unknown.
	  Checked the press temperature,press temp was in spec. Re-
	  moved the carrier and checked the down force pressure. 
	  Found the down force was off by 10 pounds. Re calibrated 
	  the down force. Removed and replaced the teflon button,
  	  primary,final pads and the conditioner. Gave system back to 
	  production to do MQC's and the polish rate and uniformity   
	  were way out of spec. Found that the safty cam was not 
	  adjusted properly. Adjusted the cam and gave system back to
	  production to check polish rates again.












 
	 
37.205SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 05:558
STRATA::REDRIVERS                                     5 lines  11-JAN-1995 21:38
                      -< WSTK.1 DOWN FOR DROPPING WAFERS >-
--------------------------------------------------------------------------------
    WSTK.1  System down for dropping wafers at load cassette...cassette was
    	not indexing enough to lift wafer off of the slot in the cassette,
    	causing it to drag and drop off of the shuttle blade. Adjusted the
    	wafer detect sensor bar down so that the wafer is being lifted into
    	the "V" area of the cassette so that there is no drag at all.
37.206DROPPING WAFERS AND NOT PICKING THEM UPSUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 05:5615
SCOMAN::GILMAN                                       12 lines  22-JAN-1995 04:09
                              -< multi problems >-
--------------------------------------------------------------------------------
WSTK.1 - Down for dropping Wafers off Shuttle.  Found both the Load Indexer 
	Home Switch & Shuttle Hard Stop too be lose. System was also not 
	picking Wafers from the Load Cup, when they made it there. Verified the
	DI input pressure of 35 PSI. The Vacuum Gauge read 25 Inches of
	Mercury, but the Vacuum Switch was not being made. Found the Vacuum
        Switch to be leaking air around the Telfon Tape. Tightened the Sensor 
	with one full turn.  Opened up FV13 a little to help with the dispense 
	of DI Water when the Pre-Wet is activated. Tighten both the Load 	
	Indexer Home Switch and Shuttle Hard Stop then verified operation of 
	Shuttle and Load Indexer. The PM is in the Incomplete Notes File, it
	only needs DI Water Samples done.  The H202 Purge was already
	completed.
37.207SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 05:5610
SCOMAN::GILMAN                                        7 lines  22-JAN-1995 23:31
                            -< not picking wafers >-
--------------------------------------------------------------------------------
WSTK.1 - Continued from A Shift with the Carrier not Picking Wafers from the
	Load Cup. Installed a new Carrier Vacuum Switch.  The new one switches
	states at 4 Inches of Hg and the old one switched states at 15 Inches 
	of Hg.  Also adjusted the Shuttle Hard Stop & Shuttle at Indexer
	Switch, because the Shuttle was not loading Wafers in the Load Cup
	properly.  Cycled two full Cassettes of Wafers over system without 
	error.  Gave back to MFG.
37.208SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 05:5614
STRATA::POOLE                                        11 lines  25-JAN-1995 07:20
                    -< POWERED off/  Conditioner / fumble >-
--------------------------------------------------------------------------------
 WSTK.1   System was powered off by operator opening the rear panel.
          The conditioner was bouncing around and he wanted to check
          the pressure setting and opened the wrong panel.  Powered
          system back on and checked out the conditioner.  The cond-
          itioner had just been installed and was not parallel to the
          pad.  The front edge of the conditioner was catching on the
          pad causing the erratic movement.  Bent conditioner so it 
          was parallel.  Checked pad and it looked ok.  Conditioner
          worked fine after adjustment.  System later dropped a wafer
          on the primary pad.  Cleared wafer and it ran the rest of
          the night w/o error.
37.209SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 05:565
STRATA::REDRIVERS                                     2 lines  26-JAN-1995 03:57
                          -< WSTK.1 NO CARRIER RINSE >-
--------------------------------------------------------------------------------
    WSTK.1 Down for carrier not rinsing...Set up Idle Recipe according to
    	spec. system ran normally.
37.210SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 05:577
STRATA::REDRIVERS                                     4 lines  26-JAN-1995 07:31
                            -< WSTK.1 LOUD SQUEEL >-
--------------------------------------------------------------------------------
    WSTK.1 Down for polish arm squeeling and loosing wafer on final pad...
    	removed carrier and shaft cleaned shaft with scotchbrite and
    	cleaned shaft bushing and all associated parts from rust and
    	areas where it looked like it was binding up.
37.211SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 05:5735
STRATA::MAZE                                         32 lines  27-JAN-1995 19:40
                           -< carrier film problems >-
--------------------------------------------------------------------------------

The following is an action list for the Westech carrier problems we have been
having.  The carrier film is degregating after only 25 wafers.  The carrier
film appears to have circular pieces of film dug out or missing around the
center of the carrier. 

1. Check All alignments  (DONE)
    all alignments are well within spec

2. Check temp and pressure of platen press (DONE)
   temp was 277 with set point of 275 and down force was 191 at 30 PSI

3. Call Westech (DONE)
   Talked to Tim ST Marie in Phoenix and he has never heard of this kind
   of problem before.  There should be no way for slurry or contaminants to get
   between the wafer and the carrier.  He said the 40 film is the only thing 
   that could cause this problem.  He said the film is very temperature
   sensitive and if it ever got frozen during shipment that it would no longer
   be usable. 

4. Order new film from Rodel (DONE)
   New film is being rushed in for tomorrow via overnight delivery.
   Talked to Kathy at Rodel and she told me they are having trouble with the
   adhesive on the 40 film. The lots we have in the stock room is some that has
   the old adhesive on it.  They are rushing in some 454 grade film for us to
   use.  This film is similar to the 593 grade film, but has the new adhesive
   that was found to be faulty.

5. Try a carrier on WSTK.2 and see if the problem will occur on a different
   tool as well. ( IN PROGRESS)

      
37.212SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 05:5711
STRATA::MAZE                                          8 lines  27-JAN-1995 19:41
                           -< carrier film problems >-
--------------------------------------------------------------------------------

WSTK.1 - down for carrier film degregation
         Rodel has halted production of there 40 film due to adhesive problems.
         Westech was called and they said it was the 40 film that was causing
         our problems..  There is a new batch with the new glue being rushed 
         in for tomorrow.  Production will be running the tool while checking
         the carriers between runs. 

37.213SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 05:579
STRATA::DEJORDY                                       6 lines  30-JAN-1995 19:35
               -< Not picking wafers at load cup cycle to long. >-
--------------------------------------------------------------------------------

WSTK.1   System went down for not picking up wafer at the load cup. Found
	 that the arm speed was to slow. Adjusted the needle valves for
	 the up and down speed. Cycled 15 wafres through the system and 
	 gave system back to production.

37.214SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 05:5710
STRATA::DEJORDY                                       7 lines  31-JAN-1995 19:06
                -< Arm movement and Shuttle movement problems. >-
--------------------------------------------------------------------------------
WSTK.1   System went down for wafer not on polish arm. Found that the
    	 arm down speed was very slow. Adjusted the speed for the up
    	 and down. Found that the shuttle was moving erraticly, cleaned
    	 the guide rods and the bimba piston. Greased the guide rods and
    	 piston rod and cycled the shuttle back and forth. Cycled 20 
    	 wafers through the load unload cycle without further problems.
    
37.215SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 05:578
STRATA::DEJORDY                                       5 lines   1-FEB-1995 18:29
                 -< Arm not going down in the clean station. >-
--------------------------------------------------------------------------------
WSTK.1    System went down for arm not drooping down into the clean 
    	  station. Found the the vacuum switch for the carrier was 
    	  loose. System was reciving the wrong signals. Adjusted the 
    	  vacuum switch and cycled 30 wafers throught the system.
    	  system ran without errors for the rest of the day.
37.216SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 05:588
LUDWIG::POOLE                                         5 lines   8-FEB-1995 07:29
                   -< dropping particle monitors on primary >-
--------------------------------------------------------------------------------
WSTK.1     System is dropping 3500 micron particle monitors on the 
           primary when lifting polish arm.  Vacuum is good at -20.
           Dummy oxides run fine.  Having production replace carrier
           and primary pad, then run full boat of dummies on particle
           recipe.
37.217SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 05:5816
SCOMAN::TDYER                                        13 lines  11-FEB-1995 10:17
                             -< OCP RESET PROCD. >-
--------------------------------------------------------------------------------
    
********************************************************************************
    procedure for resetting the ocp controler in the westech chase if the
    unit does not come back on line after a transfer.

1) press station reset 
2) press yes
3) press button #2 (labeled "1")
4) press yes
5) slurry spike now intiated. After 15 minutes go to step 6
6) press button #4 (labeled "2").
7) press yes
8) infinite dispense now initiated 
37.218SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 05:587
STRATA::POOLE                                         4 lines  17-FEB-1995 07:13
                           -< rattling inpolish arm >-
--------------------------------------------------------------------------------
WSTK.1   Rattling in arm with carrier rotating.  Found sensor in arm
         out of its bracket.  Bracket is stretched and will not support
         sensor.  Tie wrapped sensor to bracket.  Also tie wrapped the
         vacuum line so it wasn't touching carrier drive.
37.219SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 05:588
STRATA::DEJORDY                                       5 lines  20-FEB-1995 19:31
                         -< Wafer unloading problems. >-
--------------------------------------------------------------------------------

WSTK.1   System went down for wafer unload problems. Adjusted the wafer track
	 exit jets and adjusted the bowl jets down. Problem was that the wafers
	 were exiting to fast and not being sensed. 

37.220SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 05:5810
STRATA::FRANCIS                                       7 lines   1-MAR-1995 07:25
                           -< WSTK.1 Vacuum problem >-
--------------------------------------------------------------------------------
WSTK.1 - System went down for not piking up some of the wafers and some of
    	the wafers were not going into the exit cassette. Made an adjust-
    	ment to the water track pitch. Ran a casstte of wafers without any
    	problems. The backs of the product wafers were dull. The Carrier
    	had no problem achieving vacuum on all of the monitors. Returned
    	the system back to MFG.
    
37.221SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 05:596
STRATA::REDRIVERS                                     3 lines  12-MAR-1995 11:50
                           -< WSTK.1 TRANSPORT JAM >-
--------------------------------------------------------------------------------
    WSTK.1-Down for wafer transport failure...cleared transport-jam,reset
    	transport and had to reset system. Ran wafers and gave system back
    	to production.
37.222SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 05:597
SCOMAN::GILMAN                                        4 lines  14-MAR-1995 05:18
                             -< no carrier vacuum >-
--------------------------------------------------------------------------------
WSTK.1 - Down for not achieving Carrier Vacuum.  Unloaded the Wafer in question
	and noticed it was not sitting inside the Carrier perfectly.  Ran two
	Cassettes of Warm up Wafers without a problem.  Gave back to
	Production.
37.223SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 05:598
STRATA::DEJORDY                                       5 lines  14-MAR-1995 19:22
                          -< Jerky shuttle movement. >-
--------------------------------------------------------------------------------

WSTK.1  System needed to be checked out for jerky shuttle movement.
	Found that the guide rods were covered with slurry. Cleaned 
	and greased the giude rods,ran the shuttle to the elevator and 
	lifter cup 5 times without further problems.
37.224SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 05:5911
LUDWIG::DEJORDY                                       8 lines  15-MAR-1995 19:34
                      -< Vacuum and placement problems. >-
--------------------------------------------------------------------------------

WSTK.1   System went down for not picking wafer at load cup.Found that
	 the shuttle was extending to far into the lifter cup. Adjusted
	 the hard stop till wafer was centered. System also would not
	 per wet for vacuum. Removed the flow block and solinoid cleaned
	 both and reinstalled. Cycled 10 wafers through system without 
	 further problems.

37.225SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 05:598
SCOMAN::GILMAN                                        5 lines  20-MAR-1995 07:14
                             -< no carrier vacuum >-
--------------------------------------------------------------------------------
WSTK.1 - Down for no Carrier Vacuum.  Pushed up against Wafer and the Carrier
	acheived 22 "Hg.  After the Wafer was unloaded, it was noticed the 
	Carrier 40-Film was hanging off the Carrier.  It must not have been
	cured properly on the PRESS.  Operator installed a new Carrier.  Gave
	back to Production.
37.226SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 05:598
STRATA::POOLE                                         5 lines  22-MAR-1995 07:19
                             -< system locked up >-
--------------------------------------------------------------------------------

WSTK.1    System was locked up with the polish arm in the clean station.
          Arm would not move out of station and no alarms were indicated.
          Moved the arm using the cal page.  Pressed run and it started
          working again.
37.227SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:009
STRATA::WESTPHAL                                      6 lines  25-MAR-1995 17:04
                             -< SHUTTLE JAM ERROR >-
--------------------------------------------------------------------------------
    WSTK.1 - Down for shuttle jam error.  Went to I/O page reset the
    	     shuttle and manually moved the shuttle to lift position.
    	     Tried to restart process but received a "wafer not sensed at 
    	     lift".  Using the I/O page I placed another wafer at the lift 
    	     station and restarted with no further problems. 	 
             
37.228SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:0026
STRATA::POOLE                                        23 lines  29-MAR-1995 07:26
                         -< Pad conditioner repaired >-
--------------------------------------------------------------------------------

WSTK.1    Conditioning arm would not oscillate.  Removed pad conditioner
          assembly.  Cleaned up some of the slurry and verified all prox-
          imity switches worked.  Reinstalled assembly back into system.
          When the conditioner was turned on it would only lift then extend
          (rotate) over the pad.  It should normally then lower then start
          oscillating.  Found and repaired broken wire on TB29 7 in the
          conditioner assembly  (the conditioner terminal bd.s have Final
          conditioner terminal bd designations).  Arm would then lower and 
          still not oscillate.  Found bad CB6 1 amp breaker which was in
          line with the oscillation motor.  Replaced CB6 with breaker taken
          from WSTK.2 .  Pad conditioner ran normally.  We had the assembly
          connected but not fully installed.  When put back to normal the 
          arm lifted when oscillating.  The mounting holes for the assembly
          were causing the problem.  One of the two holes is stripped, the 
          other is partially stripped and the only threads that grab are the
          last 3 or 4.  The screws are to long and bottom out leaving the
          assembly slightly loose.  The cam hits the top of the screw when
          rotating causing the motor to shift of the extend sense switch
          which then causes the arm to lift.  Installed lock washer beneath
          the assembly so it would snug up and fit tightly.  System has been
          reassmbled and the pads have been removed.  Back to production
          for full mqc's.
37.229SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:006
LUDWIG::POOLE                                         3 lines  30-MAR-1995 07:27
               -< Adjusted the indexer home and thru beam sense >-
--------------------------------------------------------------------------------
 WSTK.1   Adjusted the indexer height/home.  Adjusted the thru-beam
          sensor for wafer sense in each slot using black poly boats.
          Ran boat loading and unloading without error.
37.230SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:006
STRATA::POOLE                                         3 lines  31-MAR-1995 07:43
                        -< TAPPED CONDITIONER MOUNTS  >-
--------------------------------------------------------------------------------
 WSTK.1   Removed the arm conditioner assembly.  Tapped out the mounting
          screw holes.  Replaced conditioner, tested and put system back
          up.
37.231SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:0023
STRATA::POOLE                                        20 lines   1-APR-1995 07:21
                    -< THRU BEAM  ADJUSTED AND CHECKED OUT >-
--------------------------------------------------------------------------------
WSTK.2   Started off by adjusting the shuttle stop.  Removed the load
         station and cleaned up the load/shuttle/indexer area.  Ran
         dummys and wafers weren't being sensed in the lower middle 
         of the cassette.  The cassette sense switch broke so I replaced
         it with a new one of the same type.  Noticed the shuttle tray
         was cracked and coming apart where it was glued together so
         that was replaced also.  Tried aligning and always had one or
         two slots that it wouldn't see a wafer.  Rechecked home and 
         adjusted it slightly.  Still had trouble with thru-beam.  
         Noticed cassette post that was moved was slightly in line with
         the thru-beam sense.  Moved the inner sensor to the outmost
         mounting holes on the support bracket.  Adjusted thru-beam 
         and it worked for the entire cassette.  The mounting bracket is
         warped so when it was tightened it went out of adjustment again
         Re-aligned and it checked out good.  The shuttle was bumping
         the thru-beam sensor when it cycled.  Cut a slot in the tray
         so that it doesn't hit the sensor.  WSTK.1 has a similar slot
         in the tray.  Started marathon run to verify transfer.  Ran
         2 boats so far using load/unload in manual mode.  

37.232SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:008
SCOMAN::GILMAN                                        5 lines   2-APR-1995 04:47
                                 -< no vacuum >-
--------------------------------------------------------------------------------
WSTK.1 - Down for not sensing Carrier Vacuum.  Found the Carrier Vacuum Switch
	to be defective.  It was repalced.  Also had problems picking Wafers 
	from the Top of the Send Cassette.  The Through Beam Sensor was 
	adjusted and 2 Cassettes were run over the system.  Gave back to
	Production.
37.233SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:016
STRATA::FRANCIS                                       3 lines   3-APR-1995 04:15
                       -< WSTK.1 Load sensor problems. >-
--------------------------------------------------------------------------------
WSTK.1 - Some of the wafers were not being seen in the load cassette.
    	Adjusted the through beam sensors and tried wafers in random
    	locations. They were good. Gave the system back to MFG.
37.234SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:0111
SCOMAN::GILMAN                                        8 lines   3-APR-1995 06:21
                            -< did not pick wafer >-
--------------------------------------------------------------------------------
WSTK.1 - Down for not picking Wafer from Load Station.  The Operator had pushed
	LOAD NEW WAFER then the Shuttle went into the Cassette, but it did not
	pick the Wafer. The system did not have an alarm and the LIFT TO SENSE,
	CASSETTE PRESENT & SHUTTLE AT LOAD Sensors were all made.  Aborted the
	cycle and attempted to use the INPUT/OUTPUT Screen to move the Shuttle,
	but it would not respond. The Shuttle would not move even when the 
	LOAD SERVICE SWITCH was used.  EMO'ed the system and it worked fine
	after power up.  Gave back to Production.
37.235SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:017
SCOMAN::GILMAN                                        4 lines   4-APR-1995 05:45
                     -< it's working! Isn't that amazing? >-
--------------------------------------------------------------------------------
WSTK.1 - Continued from A-Shift, which started the Monthly PM.  Did not do the
	Platen Temp. Calibration. Put the system back together and gave back to
	Production to have full MQC's done.  It survived MQC's.  Uniformity
	came in around 13 & the Polish Rate was around 1250.
37.236SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:015
STRATA::REDRIVERS                                     2 lines   4-APR-1995 19:04
                              -< WSTK.1 SHUTTLE >-
--------------------------------------------------------------------------------
    WSTK.1-Down for shuttle sticking...cleaned and lubricated guide rods.
    	Cycled wafers with no problems.
37.237SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:0110
STRATA::GALAN                                         7 lines   5-APR-1995 07:18
                               -< Bad OCP line >-
--------------------------------------------------------------------------------
    WSTK.1 -	System was down for bulk fill problems. Bulk chemical found
    		a loose air line in the OCP. Both WSTK.1 and .2 went down
   		for the same problem later in the shift. Found the same air
  		line in the OCP blown off of one of it's fittings. Did not 
    		have proper replacement line, cut off expanded piece of
    		line, re-attached and ty-wraped. No further problems.
    
37.238SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:018
STRATA::REDRIVERS                                     5 lines   5-APR-1995 18:55
                           -<  WSTK.1 SLURRY SYSTEM >-
--------------------------------------------------------------------------------
     WSTK.1 - down for no slurry return to bulk fill...cleaned clogged
    	valve in recirculation loop on the wall,then had to reset O.C.P.
    	unit and had to manually open and close return valve in the floor
    	by removing and replacing the air line several times,reset the 
    	O.P.C. again and let the slurry circulate for one hour. 
37.239SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:0119
STRATA::MAZE                                         16 lines   8-APR-1995 19:21
                      -< slurry and polish rate problems >-
--------------------------------------------------------------------------------

WSTK.1 & .2 - Down for slurry problems.
        Found the return pressure gauges were as low as 0 psi.  Bill Waxman
        said the return to the drum was just trickling.  Bypassed the filter
        and Bill turned up the pump pressure to ~70 psi.  Continued the slurry
        purge for 3 hours. removed the filter and found it completely solid with
        dry slurry.  Replaced the filter with a 1 micron filter.  The slurry
        drum was replaced with a new one, and the new slurry was cycled through
        the tool.  The pressure gauge is now reading 10 psi on the return. 
        Tool was turned over to MFG for MQC's. 
 

WSTK.1 - Down for low polish rates.
         The 1 micron filter is bypassed and polish rates were ran to see if
         the filter is causing the problem.

37.240SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:016
STRATA::MAZE                                          3 lines   8-APR-1995 19:23
                          -< conditioner down force >-
--------------------------------------------------------------------------------
    WSTK.1 conditioner down force= @15 psi = 7 lbs of down force on load
    cell.
    
37.241SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:0227
SCOMAN::GILMAN                                       24 lines   9-APR-1995 07:05
                             -< low polish rates >-
--------------------------------------------------------------------------------
WSTK.1 - Continued from C-Shift, with very low Polish Rates (900).  Rechecked 
	all the Alignments on the Monthly PM.  I only made two changes and
	they were getting the Gear Box Runout down to .002" & Calibrating the
	Arm Down Force.  The results are shown below:

	PLATEN RUNOUT	     PLATEN SWEEP         GEAR BOX RUNOUT
	=============        ==============       ===============
	Primary = +/-.002"   Primary = +/-.003"   Pre  = +/-.005"
	Final   = +/-.002"   Final   = +/-.005"   Post = +/-.002"

	CARRIER SHAFT HIEGHT = .846"

	ARM DOWN FORCE
	===============
	Pre:  Display = 184 lbs.
	      Meter   = 200 lbs.

	Post: Display = 199 lbs.
	      Meter   = 200 lbs.

	The Pads & Conditioner Diamond Plate were replaced then another Polish
	Rate was attempted. It was still low, around 900.  Put the system to
	PRO_ENG.

37.242SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:0216
SCOMAN::GILMAN                                       13 lines  10-APR-1995 06:15
                              -< low uniformity >-
--------------------------------------------------------------------------------
WSTK.1 - Down for Low Uniformity.  Found  PRV#12 & PL#12,(which are used to
	deliver/monitor the Conditioner Down Force), to have loose/leaking
	fittings on them.  Tightened the fittings in question.  The Process
	Eng. (Matt V.), questioned whether the Carrier still had Vacuum on the 
	Wafer while Processing on Primary Platen. Ran the system and did not 
	see any problem. The Vacuum Gauge stayed right on Zero.  Matt V. also
	noticed the Slurry Pressure was drifting from 8 psi to 18 psi inside
	the Westech.  I found the same thing in WSTK.2. While looking for the
	source of the problem, the Bulk Slurry went off-line.  When it came
	back on the Slurry Pressure was steady at 12 psi.  Asked operator
	to do MQC's on both Westech's.  WSTK.1 still had low Uniformity.
	The results are shown below: Polish Rate = 1027, Unif. = -12.36 %,
	Edge Unif. = 9.65.
37.243SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:0210
STRATA::REDRIVERS                                     7 lines  10-APR-1995 18:32
                        -< WSTK.1 SLURRY POLISH RATE  >-
--------------------------------------------------------------------------------
    WSTK.1 DOWN for polish rate and uniformity...swapped from bulk slurry
    	to a barrel behind the tool. Polish rate came up but uniformity
    	was still out.Measured the curvature and it was 2.7 so had pro-
    	duction change carrier from a 20 micron to a 30 micron at 245 and
    	30. Uniformity came in at -3 and 9.6.
     Problem with the slurry was that there was water getting into it at
    	the bulk fill end.
37.244SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:0219
SCOMAN::GILMAN                                       16 lines  12-APR-1995 07:38
                              -< low polish rate >-
--------------------------------------------------------------------------------
WSTK.1 - Continued form A-shift.  Red R. rebuilt the Carrier Gear Box &
	installed.  B-shift filled the Gear Box with oil and adjusted all
	affected alignments. Needed to install a .004" shim for the Gear Box
	to get the Left-Right in spec.  The results are shown below:

	CARRIER SHAFT HEIGHT = 	.853" (no shims required)

	GEAR BOX RUNOUT = +/-.002" (.004" shim required)

	PLATEN SWEEPS        
	=============
	Primary = +/-.002"
	Final   = +/-.004"

	Polish Rate is still Low at (717), with a 20 Micron Carrier.
    
37.245SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:027
STRATA::REDRIVERS                                     4 lines  12-APR-1995 16:22
                            -< WSTK.1 POLISH RATE >-
--------------------------------------------------------------------------------
    WSTK.1 Down for low polish rate ....checked down force and it was OK
    	noticed that the cam follower block was too close to the center 
    	shaft, adjusted the same and the polish rates and uniformity rates
    	came in at 1209 and 5.5%.
37.246SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:02135
STRATA::FRANCIS                                     132 lines  14-APR-1995 05:52
                                 -< Game plan >-
--------------------------------------------------------------------------------

================================================================================
 SUBJECT: WSTK.1 +.2 ACTION PLAN for 4/14/95
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

  PLEASE FOLLOW THE ACTION PLAN, WE NEED TO STAY ON TRACK IF WE ARE TO
  BE SUCCESSFUL IN IDENTIFYING ALL OUR PROBLEM AREAS. THE TOOLS (WSTK.1,
  WSTK.2) NEED TO BE SEPARATED FROM THE CONSUMABLES (40FILM, PADS AND
  CONDITIONER). IF YOU NEED TO VARY FROM THE PLAN PLEASE CALL ME AT 
  HOME, 699-4905.


  WSTK.1 - After running lot B50977-39 the ending polish rate (unif)
           a standard polish rate  and the pilot for the NEXT LOT was 
           INSPEC , however the uniformity is drifting towards center
           slow. Other than specific hardware issues, this has been our
           primary problem for the last several weeks. THIS IS THE ONE
           WE NEED TO FOCUS ON.

  WSTK.2 - After shuttle replacement this tool still indicated a gimbling
           problem (2 sets of apposing low/high polish rates). The tool
           alignment was check ad the following adjustments were made:
                pre            post     
   Crr RU      +.013	       +.003"
   Plt Swp     +.008           +.003"
   balance    front          neutral

  WSTK.2 - After alignment the following test were conducted to isolate the
           WSTK, 40 film or PAD.

           2 PR with carrier 881 (40 film)   940 -10%, 5%,  (gimbling)
           1 PR with BE carrier (DF-200film) 920  0%,  4.5% (no gimbling)
           2 PR with carrier 881 (40 film)   940 -10%, 5%,  (gimbling)
           1 PR with carrier 389 (40 film, 30u)  570 -8%, 13%,  
           
       
         * The gimbling is not due to an equipment issue all hardware has been
           checked and re-checked . The gimbling effect is most likely
           a false problem. The 40film could ether be swelling or collapsing
           on opposing sides of the wafer.
        
         * Nothing but the CARRIERS (carrier film type) were changed in between 
           these test!

 STATEMENT: This last test with WSTK.2 and the fact that WSTK.1's and WSTK.2's
            uniformity changes drastically with carrier changes ONLY, and the
            DF200 test results point to the 40 FILM. On the last PR for WSTK.2
            the rate dropped almost in half, see the WSTK.2 action plan. 

            The last test to be run on WSTK.2 will test the IC1000 pads for
            the uniformity problem. After completion of these test we should 
            know PAD or carrier film.
 
 Plan: WSTK.1:
         
       1) Run lots, do standard post polish rate checks, if uniformity
          drifts negative again please do the following:
       2) Continue to build carrier with 40film lot 6y07517 on the 20u
          press at 245.
       3) Although it seems like we have been doing this over and over, please
          replace the carrier when the uniformity goes out of spec. We are
          We will work this film issue aggressively. For now, we have to use
          the 40film and multiple carriers.
      
       WSTK.2:
        
Done	1) Check RPC conditioner for proper operation (due to the rate drop).
           Picked up a new conditioner disk for RPC2 which is in the clear
	   cabinet. The one on there now looked good. 

Done    2) Reinstall 389, check PR.

Done    3) Install the "glue on top" pad. This is from an old IC lot which
           we had good results with. Clean the bad with a nylon brush and
           run several extra condition cycles.
           - Check PR, if good, run 3 dummies, PR, 3 dummies PR.
             If good run lots and Engineering will acquire a new batch of
             IC pads.
       
        ***If the "old" pad proves to be successful on WSTK.2, go to the SR
           and pull IC1000 from a lot other than DB5-xxx and install it on 
           WSTK.1.
      
                 

========
  WSTK.1 summary of uniformity drifting:

  Carrier	PR	unif	edge		lot

  434		1240	9	6		ct5-la1

                 ran ONE lot
 
  434		1095	-5	8		ct5-la1

                 change carrier

  868		1116	-7	8 		ct5-la1

                 change PRIMARY pad

  868		1270	1.6	8   		ct5-la1    SLOW edge spot

                change carrier

  389		890	25	11		ct5-la1

                change carrier

  409		1070	8	9		ct5-la1

                ran one LOT

  409           947     -1      10              ct5-la1
 ========

 WSTK.2   summary

  Carrier	PR	unif	edge		lot

  881		940	-10	5		ct5-la1   gimbling symptom

  BE		930	 0	4.5		df200    +warmups looked OK

  881		940	-11	5		ct5-la1   gimbling symptom

  389 		975	-9	13		6y07517   (30u)

  
  

37.247SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:026
SCOMAN::GILMAN                                        3 lines  17-APR-1995 07:14
                              -< high particles >-
--------------------------------------------------------------------------------
WSTK.1 - Down for high Particles.  Purged the DI Water Supply with H202 &
	changed both Pads.  Particles came in spec.. Gave back to Production.

37.248SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:037
STRATA::POOLE                                         4 lines  19-APR-1995 07:21
                        -< wafers stuck at exit track >-
--------------------------------------------------------------------------------

WSTK.1  Wafers were getting stuck under the carrier at the water trap.
        Adjusted polish arm balance and the exit track height.  Ran
        warm-ups without error.
37.249SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:039
STRATA::POOLE                                         6 lines  22-APR-1995 07:24
                     -< thru-beam adjusted bulk problems >-
--------------------------------------------------------------------------------
 WSTK.1  Slurry light came on at 5:20 AM.  Had security call Bulk Fill
         contact.

 WSTK.1  Load index was skipping the 3rd wafer.  The thru-beam sensor assembly
         was loose and must of gotten bumped.  Adjusted thru-beam and checked
         all slots.
37.250SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:038
SCOMAN::GILMAN                                        5 lines  24-APR-1995 06:21
                            -< not picking wafers >-
--------------------------------------------------------------------------------
WSTK.1 - Down for not picking wafers from the top of a Cassette from the Load
	Station.  Needed to adjusted the HOME & THROUGH BEAM Sensors to have
	Wafers picked from every Slot.  Randomly placed Wafers in Load Cassette
	and it ran without a problem.  A Total of 40 Wafers were run.  Gave
	back to Production.
37.251SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:036
SCOMAN::GILMAN                                        3 lines  26-APR-1995 00:01
                                -< dead switch >-
--------------------------------------------------------------------------------
WSTK.1 - Down for not picking a Wafer from the Load Cup.  Found the SHUTTLE TO
	LIFT Switch to be defective.  It was replaced and the system was put
	back into production.
37.252SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:046
STRATA::POOLE                                         3 lines  27-APR-1995 07:26
                         -< Thru-beam sensor adjusted >-
--------------------------------------------------------------------------------
WSTK.1   Loader wasn't seeing the 3rd wafer in the cassette.  Adjusted the
         Thru-beam sensor.  Checked wafer sense on each slot.  

37.253SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:046
STRATA::POOLE                                         3 lines  29-APR-1995 07:27
                            -< system powered off >-
--------------------------------------------------------------------------------
WSTK.1   System powered off.  Powered back up with no problems.  Platen
         breaker was tripped when powered back on.  Reset breaker.

37.254SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:0429
STRATA::WESTPHAL                                     26 lines  29-APR-1995 17:00
                               -< REP.'S VISIT  >-
--------------------------------------------------------------------------------
WSTK   - Rep. was in today as planned but did not do anything with the software 
         on either tool because he had some problems with his software kit.
       	 Ran a boat of wafers on both tools to observe how they were operating.
	 Every thing looked good except the shuttle on WSTK.1 was skipping  
         a little so he adjusted the flows to the shuttle.  The rep. said that 
         he would get in touch with Tim Dyer as to when he would be back to 
         upgrade the software.



















37.255SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:055
STRATA::POOLE                                         2 lines   3-MAY-1995 07:32
                            -< water samples taken >-
--------------------------------------------------------------------------------

WSTK.1    Water samples taken.  Semi-annual incomplete in 17.295
37.256SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:0513
STRATA::POOLE                                        10 lines   4-MAY-1995 07:38
                        -< Thru-beam mis-aligned again >-
--------------------------------------------------------------------------------
WSTK.1    Shuttle jam error.  Thru-beam sense missed a wafer and caused the 
          jam.  Removed the thru-beam assembly and tightened all screws.
          System kept on missing wafers or seeing ghost wafers in various
          slots.  Tightened all screws on the loader assembly.  Adjusted
          thru-beam and ran thru all slots with no errors.  Verified align-
          ment and gave back to production.   System errored again for
          shuttle jam.  Shuttle hit a wafer in the 10th slot.


          
37.257SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:0517
STRATA::WESTPHAL                                     14 lines   4-MAY-1995 19:42
                             -< PEAK BOAT UPGRADE >-
--------------------------------------------------------------------------------
  
WSTK.1 - Thru-beam was not sensing wafers correctly.  It was decided that while 
	 the tool was down that the peak boat modifications should be done.  
	 That was completed and a new cassette sense micro-switch was also 
	 installed.  While trying to adjust the sensor it was discovered that
	 one of the screw holes were stripped out so the same was retapped for
	 a bigger screw.  The thru-beam was then adjusted so all wafers were 
	 being sensed.  Ran a lot of wafers but kept receiving errors for a 
	 wafer not being sensed on the carrier.  Checked the vacuum switch and 
	 inspected load cup but didn't see any thing wrong.  This could have 
         been due me not operating the tool software properly.  With some 
	 assistance from an operator a lot was run with out any problems and 
 	 the tool was put up.

37.258SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:059
STRATA::POOLE                                         6 lines   5-MAY-1995 07:07
                               -< vacuum error >-
--------------------------------------------------------------------------------

WSTK.1    No wafer in carrier error.  Vacuum gauge showed -20mm Hg. while 
          screen displayed vacuum was not achieved.
          Adjusted the vacuum switch.  Ran warm-ups w/o error.
 

37.259SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:0615
STRATA::WESTPHAL                                     12 lines   5-MAY-1995 19:21
                              -< VACUUM PROBLEM >-
--------------------------------------------------------------------------------

WSTK.1  - Down for system not sensing wafers on the carrier.  Changed out the 
	  vacuum switch and adjusted it to sense properly.  The arm
          will move to pick a wafer and then hesitate about 25 sec before
          registering vacuum or alarming for no wafer in the carrier.  Pulled 
    	  and cleaned the load cup and reinstalled it but still had the same 
    	  problem. Tried adjusting the position of the LC with the play in the
    	  center bolt.  Suspected that the shim height on the carrier might be 
          to high or the carrier might some how be the problem but this didn't
    	  make any difference either.
	  Ran out of time to go any further.

37.260SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:0612
STRATA::POOLE                                         9 lines   6-MAY-1995 07:20
                   -< VAC SWITCH ADJUSTED/ NEW GAUGE ADDED >-
--------------------------------------------------------------------------------

WSTK.1  Checked out the vacuum problem.  Gauge showed -23 mm Hg and the
        screen indicated no vacuum.  Adjusted the vacuum switch and trans-
        ferred wafers with no errors.  Installed another vacuum gauge on
        the system so a gauge can be seen from the front at all times.
        Vacuum is adjusted so it is being sensed at -12 mm HG.
        Completed some of the Semi-annual checks.
        incomplete 17.299

37.261SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:066
SCOMAN::GILMAN                                        3 lines   7-MAY-1995 07:08
                            -< SHUTTLE NOT WORKING >-
--------------------------------------------------------------------------------
WSTK.1 - Down for not Shuttle not working.  Found the SHUTTLE TO EVEVATOR &
	Load Elevator CASSETTE PRESENT Switches to be in need of adjusted.
	Ran a full Cassette of Wafers over the system without problem.
37.262WAFERS NOT ENTERING UNLOAD CASSETTESUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:065
SCOMAN::GILMAN                                        2 lines   8-MAY-1995 23:13
                                     -< i >-
--------------------------------------------------------------------------------
WSTK.1 - Down for Wafers not entering into the Unload Cassette.  Adjusted the
	Exit Slide & cycled a Cassette of Wafers without a problem.
37.263SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:0711
LUDWIG::POOLE                                         8 lines  11-MAY-1995 07:40
                  -< shuttle jam caused by peak /thru-beam  >-
--------------------------------------------------------------------------------
 WSTK.1    Shuttle jammed caused by thru-beam not sensing the third wafer
           in cassette.  Checked alignment with warm-ups and it looked good.
           Checked alignment with the product and it missed the third wafer 
           again.  Noticed the cassette with the product was new.  Placed
           a small wrench on cassette inner bottom surface and the thru-beam
           sensed the wafer.  The reflection is causing the fault.  The
           cassette with the warm-ups looked old ( less shiny ).  Swapped
           boats and the product was sensed in the third slot.
37.264SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:079
STRATA::DAVIS                                         6 lines  31-MAY-1995 17:48
                           -< Slurry filter changed >-
--------------------------------------------------------------------------------
    WSTK.1 and WSTK.2 -
    
           A new slurry filter was installed, the filter housing was
           filled with slurry and the slurry supply line was reconnected.
           The slurry filter bypass valve was closed and the isolation
           valves for the filter were opened. 
37.265SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:079
LUDWIG::DEJORDY                                       6 lines   5-JUN-1995 08:12
                            -< Polish arm problem. >-
--------------------------------------------------------------------------------

WSTK.1	System went down for polish arm would pick up wafer at load cup.
	found that the polish arm was not centered over the load cup.
	aborted the process moved the polish arm. Restatred the process
	and system ran without further problems.

37.266SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:079
STRATA::REDRIVERS                                     6 lines   8-JUN-1995 22:11
                       -< WSTK.1  SHUTTLE JAM 3RD WAFER >-
--------------------------------------------------------------------------------
    WSTK.1-Down for shuttle jam on third wafer...replaced cassette and
    	still had the same problem, ran dummy wafers and still had the
    	problem,noticed that the cassette was indexing too far. So I 
    	adjusted the cassette home switch to give the shuttle enough
    	clearance from the next wafer and aslo had to adjust the thru
    	beam sensor.Back to production. 
37.267SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:077
STRATA::POOLE                                         4 lines  10-JUN-1995 07:24
                            -< slurry barrel on 1 >-
--------------------------------------------------------------------------------
WSTK.1   Installed slurry barrel to rear plumbing.  

WSTK.2   DOWN: polish arm won't lift.  Installed barrel.  Later the
         polish arm lift stopped working.  Found sol 1 bad.  
37.268SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:085
STRATA::REDRIVERS                                     2 lines  15-JUN-1995 05:02
                            -< WSTK.1 PLATNE TEMPS >-
--------------------------------------------------------------------------------
    WSTK.1-Recalibrated the platen temps because they system was erroring
    	for platen temp.
37.269SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:0814
STRATA::DSMITH                                       11 lines  19-JUN-1995 19:16
                                  -< vacuum problems>-
--------------------------------------------------------------------------------
WSTK.1  System down for loosing vacuum.
        The problem is hard to trace since it happens
        6 out off 25 wafers. Tightened all the fitting for
        the vacuum lines. Turned on wafer eject flow, all the
        holes on the carrier are o.k. Tried running 2 more
        warm up through and the vacuum was lost during transfer
        from primary to clean station. Ran out of time to investigate
        further. The carrier was changed on Saturday from a 20 mic.
        to 30 mic. Problem has been re-occuring since Sunday. 
      
                
37.270SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:0815
STRATA::FRANCIS                                      12 lines  20-JUN-1995 05:56
                            -< WSTK.1 Bad carrier. >-
--------------------------------------------------------------------------------
WSTK.1 - Down from the previous shift for loosing wafers at the Primary
	pad. Placed a wafer on the carrier and enabled the vacuum. The
	vacuum was achieved when pressing against the wafer and down on
	the top of the carrier at the same time. Tried this with a few 
	wafers with the same result. Found a few spots of slurry build
	up on the film. The operator replaced the carrier and a boat of 
	wafers were run on the DEC-CMOS5 recipe. The vacuum went up 20
	Hg of water on all the wafers. None of the wafers fell off. The
	arm was coming up a little jerk. There seemed to be a bit of a
	suction on the wafer. The polish arm is going over the edge of
	the platen. Adjusted the arm-up speed slower. Ran the rest of
	the wafers without a problem. Gave the system back to MFG.
37.271SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:086
STRATA::DSMITH                                        3 lines  20-JUN-1995 18:57
                             -< transport jammed >-
--------------------------------------------------------------------------------
WSTK.1    Down for "Transport Jammed"
          Removed wafers from the load station and reset shuttle.
          Cycled warm ups thru with no problems. Gave back to production.
37.272SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:098
LUDWIG::WESTPHAL                                      5 lines  21-JUN-1995 18:18
                        -< SHUTTLE JAM AND LOST WAFER  >-
--------------------------------------------------------------------------------
WSTK.1  - Down for a shuttle jam error.  Reset the shuttle and while running
	  the machine to check it out it lost vacuum and thought it lost a
          wafer.  Cleared the error and rinsed the carrier w/ DI water.
	  Tool ran with no further errors.
 
37.273SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:0912
STRATA::DSMITH                                        9 lines  27-JUN-1995 19:19
                              -< LOOSING VACUUM >-
--------------------------------------------------------------------------------
WSTK.1  System down for loosing vacuum.
        The fittings to the vacuum lines are all tight. Place
        a wafer up against the carrier with the vacuum on and
        the gauge read over 20hg. The wafer was only lost after
        polishing so, the shims on the carrier were remeasured.
        The operator found it to be a little off so they put
        new shims on and retried the polish. No wafers have come
        off after running 25 wafers. System is back to PRO_ENG.

37.274SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:095
STRATA::REDRIVERS                                     2 lines  30-JUN-1995 22:23
                          -< WSTK.1 CONDITIONER INOP >-
--------------------------------------------------------------------------------
    WSTK.1- Down for conditioner would not sweep...found a broken wire on
    	TB29, repaired the same and problem solved.
37.275SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:0912
               <<< SCOMAN::SILVER$:[NOTES$LIBRARY]ETCH.NOTE;4 >>>
                                   -< ETCH >-
================================================================================
Note 96.316                     WESTECH PASSDOWN                      316 of 437
STRATA::WESTPHAL                                      5 lines   5-JUL-1995 18:29
                            -< NOT PICKING WAFERS >-
--------------------------------------------------------------------------------
WSTK.1 - Down for polish arm not picking wafers.  System seemed to be locked
         up.  Powered the tool down and powered it back up.  Noticed the vacuum
 	 switch was always sensing on so adjusted same.  Cycled 3 wafers w/ no
	 further problems gave tool back to production.

37.276SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:0912
STRATA::REDRIVERS                                     9 lines   7-JUL-1995 07:15
                                 -< WSTK.1 PM >-
--------------------------------------------------------------------------------
    WSTK.1-Continued from C shift on monthly pm...platen run outs were good
    	and leveled carrier arm to 04.050in at the back and the front is at
    	04.052in. Tried to do sweeps and they went from left 5 to center 0
    	and the right went to 5 again on the primary platen. On the final
    	platen the deviation was even greater. Checked the carrier run out
    	and the it was out 0.015in tried to shim the gear box and it made
    	it worse so removed the shim and tried to shim the other side and
    	the same thing happened so I took the shim out. Check it out on
    	the final platen and it seemed worse than the primary platen. 
37.277SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:097
SCOMAN::GILMAN                                        4 lines   9-JUL-1995 06:12
                            -< finshed monthly pm >-
--------------------------------------------------------------------------------
WSTK.1 - Continued from previous shift with the Monthly PM in Progress.  
	Got all the Mechanical Alignments after a lot of persuasion.  The PM
	is in the incomplete Notes File, because the DI Water Sample was 
	not taken.
37.278SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:107
STRATA::STANDING                                      4 lines  14-JUL-1995 17:13
                             -< Power Up Problem. >-
--------------------------------------------------------------------------------
    WSTK.1	Down for not powering up.  Checked all of the cabinet
    interlocks found Primary heat exchanger not making contact with door. 
    Powered up machine and returned to production.

37.279SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:106
STRATA::POOLE                                         3 lines  15-JUL-1995 07:28
                        -< VAC sense error/ adj switch >-
--------------------------------------------------------------------------------
 WSTK.1   Vacuum switch not sensing vac at -24 mm Hg.  Adjusted switch
          and cycled boat thru w/o error.

37.280SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:107
STRATA::STANDING                                      4 lines  15-JUL-1995 11:03
                -< Wafer not released when arm is down on pad. >-
--------------------------------------------------------------------------------
    WSTK.1      Down for vacuum not releasing wafer when arm is down and
    over polish pad.  Checked down force, It was not being sensed.  Loaded
    Cal data, down force was then sensed and wafer was released.  Ran three
    more wafers with no errors, returned to production.
37.281SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:1010
STRATA::DSMITH                                        7 lines  25-JUL-1995 10:28
                 -< low polish rate  and water samples taken >-
--------------------------------------------------------------------------------
WSTK.1   -     The system is down for LOW POLISH RATE
               Checked the down force and it was out by only 8.
               Calibrated the down force and put a new primary
               pad on. The system is being evaluated and is still
               at PRO_ENG.

WSTK.1 and 2   - WATER SAMPLES TAKEN   
37.282SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:106
STRATA::DSMITH                                        3 lines  25-JUL-1995 14:56
                       -< loose wire in conditioner arm >-
--------------------------------------------------------------------------------
WSTK.1   -  System down for conditioner arm not oscillating
            Found loose wire on TB 29. Crimped wire on and 
            it ran fine. System is back to production.
37.283SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:107
STRATA::REDRIVERS                                     4 lines  26-JUL-1995 07:23
                          -<  WSTK.1 HIGH UNIFORMITY >-
--------------------------------------------------------------------------------
    WSTK.1-Down for high uniformity 24%...checked out system and could not
    	find anything wrong, ran a half of a cassette of warm up wafers and
    	the uniformity dropped to 12%. So had production run another full
    	cassette of warm ups.
37.284SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:109
STRATA::WESTPHAL                                      6 lines  28-JUL-1995 17:16
                              -< VACUUM PROBLEMS >-
--------------------------------------------------------------------------------
WSTK.1 - Down for not sensing wafer on the carrier properly.  Loosened the set 
	 nut on the vacuum switch to adjust it and some water dripped out.  So
	 the same was swapped out and adjusted.  The operator complained about 
	 the load cup squeaking so adjusted it with the center bolt.  Ran a
         boat of wafers w/o a problem so the tool was returned to
         production.
37.285SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:107
STRATA::POOLE                                         4 lines  29-JUL-1995 07:09
                       -< load cassette sense adjusted >-
--------------------------------------------------------------------------------

WSTK.1    Load cassette present sensor was not sensing cassette.  Adjusted
          sensor tab.

37.286SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:1112
SCOMAN::JONES                                         9 lines   1-AUG-1995 07:40
                        -< LOAD CASSETTE SWITCH AGAIN >-
--------------------------------------------------------------------------------
WSTK.1 - Down for load cassette not being sensed, adjusted the load cassette
         limit switch about 20 degrees to give the rocker arm more throw, also
         when running test wafers the wafer handler was not holding the wafers
         level, adjusted handler, then observed polishing arm was not lowering
         smoothly when unloading, adjusted the rotational bumper, then wafers
         were not sliding well on the slide so increased the water pressure and
	 corrected the problem, returned to production.


37.287SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:119
STRATA::FRANCIS                                       6 lines   1-AUG-1995 23:43
                       -< WSTK.1 Wafer missing - P arm. >-
--------------------------------------------------------------------------------
WSTK.1 - Down for wafer missing on the Polish arm. The Shuttle was going
	into the Lift chuck too far and a little too fast. Adjusted the
	hard stop and the position switch for the Shuttle at the lift.
	Also adjusted FV14A and B to slow down the Shuttle to the Lift 
	and the Load indexer. The Lift chuck was centered, too. Ran a
	boat of wafers without any errors.
37.288SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:116
STRATA::REDRIVERS                                     3 lines   3-AUG-1995 03:31
                           -< WSTK.1 VACUUM PROBLEM >-
--------------------------------------------------------------------------------
    WSTK.1-Down for vacuum being sensed when the guage read "0"...adjusted
           the wafer vacuum switch so that it trips at 10hg and ran wafers
           without any further problems.
37.289SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:119
STRATA::WESTPHAL                                      6 lines   4-AUG-1995 19:27
                      -< GRINDING NOISE WHILE POLISHING >-
--------------------------------------------------------------------------------
WSTK.1 - Never went down in the system but was making a load grinding noise
	 polishing.  Found that a military connector in the polish arm had
	 fallen out of its bracket and was rubbing against the carrier drive
	 shaft.  Tie wrapped the connector into its bracket tool ran w/ no
	 further problems.

37.290SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:118
STRATA::POOLE                                         5 lines  10-AUG-1995 21:59
                          -< SHUTTLE SHAFT  CLEANED >-
--------------------------------------------------------------------------------

 WSTK.1  - Shuttle was not moving into the load point smoothly causing
           wafer to intermittently load misaligned.  Cleaned the shuttle
           guide shafts.

37.291SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:118
SCOMAN::JONES                                         5 lines  14-AUG-1995 07:35
                      -< UNKNOWN WAFER AT POLISHING ARM >-
--------------------------------------------------------------------------------

WSTK.1 -  Down for unknown wafer on polishing arm, the wafer did not seat 
          properly when loaded to the load cup, tried to repeat the problem but
          was unable to. Returned to production.

37.292SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:115
STRATA::WESTPHAL                                      2 lines  18-AUG-1995 19:38
                        -< UNLOAD NEEDS TO BE UPGRADED >-
--------------------------------------------------------------------------------
WSTK.1 - Tim would like the unload station converted to handle the teflon boats
	 tonight if possible.
37.293SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:1210
STRATA::DSMITH                                        7 lines  22-AUG-1995 14:11
                               -< teflon boats >-
--------------------------------------------------------------------------------
WSTK.1 and 2  - Modification on unload station for teflon boat.
                Adjustments were made to the unload elevator home sensor.
                Completed the modifications ran 3 boats of wafers.
                Found the shuttle blade on wstk.2 was not placing the wafer
                in the load cup properly. Found screws loose on the shuttle.
                Tightened the screws and wafer is now centered in the cup.
                Both Systems are back to production.
37.294SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:127
STRATA::STANDING                                      4 lines  23-AUG-1995 11:20
                             -< Boats hanging up. >-
--------------------------------------------------------------------------------
WSTK.1     Down for wafers hanging up in the unload station.  Shaved boat guide
	   posts so that white boats fit more easier.  Adjusted home sensor,
	   two boats no problem. Returned to production.

37.295SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:125
STRATA::STANDING                                      2 lines  23-AUG-1995 19:15
                    -< Double slotting a wafer in unload. >-
--------------------------------------------------------------------------------
WSTK.1     Down for double slotting a wafer into slot 3.  Not enough time to
           adjust unloading station tilt.
37.296SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:1210
Note 96.337                     WESTECH PASSDOWN                      337 of 437
STRATA::REDRIVERS                                     6 lines  24-AUG-1995 02:19
                           -< WSTK.1 UNLOAD STATION >-
--------------------------------------------------------------------------------
    WSTK.1 Down for double slotting wafers in the unload station...found
           the cassette leveling plate was installed backwards, fixed it
           and had to adjust the home switch and turned down the water jets
           in the exit tray to slow the wafer down so that the sensor could
           see it to index the cassette down.  
    
37.297SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:1212
STRATA::STANDING                                      9 lines  25-AUG-1995 18:59
                           -< Polish rate fell off. >-
--------------------------------------------------------------------------------
 WSTK.1     Down because polish rates fell off.  Had production change carrier,
           no change.  Checked air to conditioner arm, OK.  Removed final pad
           to check polish arm down force.  Noticed that down force was not
           acting properly.  Removed covers on arm and was able to tell right
           away that the arm was not coming down fully.  Found the swing
           interlock pushed to far forward, set it in the correct position. 
           Recalibrated down force.  Returned to production for polish rate
           checks.  System was put to verify.

37.298SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:1211
STRATA::STANDING                                      8 lines  26-AUG-1995 18:01
                      -< Unload station having problems >-
--------------------------------------------------------------------------------
    
 WSTK.1     Put down because of wafer getting hung up in the unload station. 
           Found the water was not cascading over the sides of the unload
           station.  Found the two gaskets that stop the water from cascading
           over the entrance lip missing.  Replaced gaskets and readjusted
           unload station for a smooth transfer.


37.299SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:1211
STRATA::DSMITH                                        8 lines   5-SEP-1995 17:29
                               -< load station >-
--------------------------------------------------------------------------------
WSTK.1  -  Load Elev. wouldn't pick-up 25th wafer
           The wafer detec. sensor was showing it did find a 
           wafer but when the shuttle entered the cassette the
           elevator wouldn't step down to allow the wafer to seat
           in the shuttle. Adjusted the elevator home switch up and then the 
           first wafer wasn't being seen. continued to adjust the
           home switch until both 1st and 25th wafer was acknowledged. 
           Ran 2 boats with no problems. System is back to production.
37.300SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:137
STRATA::STANDING                                      4 lines   6-SEP-1995 19:20
                       -< Load Station Loading problems >-
--------------------------------------------------------------------------------
 WSTK.1     Down for shuttle hitting the wafers in the load elevator.  
           Adjusted the home sensor and error went away.  Ran 5 boats with no
           errors.  Returned to production.

37.301SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:1314
STRATA::WESTPHAL                                     11 lines   8-SEP-1995 19:32
                          -< WAFER HANDLING PROBLEMS >-
--------------------------------------------------------------------------------
WSTK.1 - Down for shuttle hitting wafers in the load elevator.  Opti's were 
	 adjusted because slot 3 and 16 were not being sensed properly.  The 
	 plunger screws for the shuttle jam load cell was completly tight on 
	 one side and was not operating correctly.  The same was adjusted.  
	 The shuttle blade was twisted to one side so that wafers were being 
	 placed in the cup unevenly.  Straightened the blade out.  The unload
	 elevator was floating the wafers out when it was stepped down.  This 
	 could not be adjusted out w/ the set screws so the shoe had to be 
	 shimmed and the station realigned.
	  

37.302SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:135
STRATA::REDRIVERS                                     2 lines   9-SEP-1995 07:44
                           -< wstk.1  beam director >-
--------------------------------------------------------------------------------
WSTK.1 - Manufactured and installed beam director on sender cassette still 
         has to be aligned.
37.303SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:1310
STRATA::WESTPHAL                                      7 lines   9-SEP-1995 19:22
                             -< HANDLING PROBLEMS >-
--------------------------------------------------------------------------------
WSTK.1  -  Down for the wafers not being sensed properly.  Last shift installed
	   a new part to help focus the beam of the opti-sensor.  Realigned 
	   sensors.  The sensors seem em to be sensing properly and the problem
	   of the shuttle hitting the wafers seems to be gone.  Now wafers 
	   are sometimes being missed giving a "no wafer at load" error.
	   

37.304SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:1315
STRATA::FRANCIS                                      12 lines  10-SEP-1995 07:30
                      -< WSTK.1 Wafer sensing problems. >-
--------------------------------------------------------------------------------
WSTK.1 - Still down for some of the wafers not being seen. Tried to load a
    	wafer that was sensed and the shuttle went to the elevator but just
    	sat there. The system then errored for taking too long and trans-
    	port fail. Increased the pressure for the shuttle to lift and open-
    	ed FV14A a little. The shuttle had no more problems. Tried a number
    	of adjustments to the thru beam sensor and to Amp1. Most of the
     	wafers were seen but not all. Tried to tightened the screw, closest
    	to the lift, of the mount for the thru beam sensor and the hole 
    	stripped before the screw could be tightened all the way. Tapped 
    	the hole out and drilled the mounting holes for both screws. The 
    	screw for the other hole is not a perfect fit to begin with. The 
    	mount will be brought to the passdown.  
37.305SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:1312
STRATA::DSMITH                                        9 lines  10-SEP-1995 18:07
                              -< shuttle errors >-
--------------------------------------------------------------------------------
WSTK.1  -  Down from previous shift for Load station problems.
           The wafer sensor bracket was remounted and adjusted.
           After half of the 2nd boat of wafers were run the system
           failed for shuttle errors. The shuttle wouldn't return
           to the Load Cup. Cleaned the shuttle rails and added          
           Krytox grease to them. System stilled failed to return
           shuttle to Load Cup. Adjusted the PRV 6 and 9 and the
           Flow valves 14 A and B. Ran 2 boats of warm-up wafers
           with no problem. System is back to production. 
37.306SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:137
SCOMAN::GILMAN                                        4 lines  12-SEP-1995 07:11
                              -< high particles. >-
--------------------------------------------------------------------------------
WSTK.1 - Down from previous shift for high particles.  Cleaned the Exit Track
	and rinsed both Pads with DI.  Had production perform a particle check
	and it came in spec..
                                                                                
37.307SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:137
STRATA::REDRIVERS                                     4 lines  15-SEP-1995 06:25
                                  -< WSTK.1 >-
--------------------------------------------------------------------------------
WSTK.1 - Wafers not going into the exit cassette at the top...adjusted the 
         cassette mount so that the cassette plate would not drag on the
         back of the teflon cup and change the position of level as in got
         closer to the bottom of its travel or the top of the cassette.
37.308SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:145
SCOMAN::GILMAN                                        2 lines  24-SEP-1995 06:55
                          -< conditioner not aligned >-
--------------------------------------------------------------------------------
WSTK.1 - Down for not Conditioning properly. Found the Conditioner Arm to not
	be aligned correctly.  Aligned same and tested.  
37.309SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:1413
STRATA::DEJORDY                                      10 lines  27-SEP-1995 08:13
                          -< Configuration changes. >-
--------------------------------------------------------------------------------
WSTK.2  System was not put down but the configuration was changed with
	the help from Mark Stevens of IPC westech. He was not sure that
	this change would help our on going problem with the RPC2. 
	Confiuration changes made were.
       
	    Previous                          Now
	Disket 1 was 1.4                Disket 1 is none
	Bioshadowing was enabled        Bioshadowing is not shadowing bias
	Keyboard/disk errors was hault  Keyboard/disk errors is no hault
	8 bit wait state was 1          8 bit wait state is 4
37.310SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:149
STRATA::WESTPHAL                                      6 lines   5-OCT-1995 19:34
                                -< ARM UPGRADE >-
--------------------------------------------------------------------------------

WSTK.1 - Down for arm run away / software upgrade.  The arm upgrade was
	 completed but there was a problem new software that was installed 
	 yesterday.  The old software was reloaded and the tool is up for 
	 production.  WESTECH is going to attempt to correct the problems with
	 the new software. 
37.311SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:1411
STRATA::WESTPHAL                                      8 lines   6-OCT-1995 19:21
                             -< Arm wont move CCW >-
--------------------------------------------------------------------------------
WSTK.1 - Problems with the arm not moving CCW.  Never put down in the system 
	 but engineering requested that a special pad ( triple stacked ) change
	 be done and .050 be subtracted from the shaft height. While doing this
	 the polish arm quit rotating CCW.  A wire was found off LS13 ( CCW 
	 over travel ) the same was resoldered.  The primary & final polish
	 limits were also adjusted.  The tool was returned to production for 
	 testing on the new pad.

37.312SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:1414
STRATA::REDRIVERS                                    11 lines   7-OCT-1995 05:06
                           -< WSTK.1 EXIT CASSETTE  >-
--------------------------------------------------------------------------------
    WSTK.1 - Down for unload cassette will not recieve wafers...Wafers were
             getting stuck at the entrance of the cassette because the
             cassette was not square and not level to the exit tray. Had to
             level the cassette using the two leveling set screws through
             the back plate, then had to loosen the cassette assy mounting
             bolts underneath the cassette area and turn the whole assy
             clockwise to make it square to the exit tray. The exit tray
             was too high blocking the exit jets not allowing the water
             to pass by the carrier to guide the wafer into the cassette,
             so that was adjusted as well.
     
37.313SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:149
STRATA::POOLE                                         6 lines  12-OCT-1995 07:19
                                -< uniformity >-
--------------------------------------------------------------------------------

WSTK.1    Uniformity out of spec (-8.5%).  System has new pads, monthly
          was just completed this week, two different carriers were tried
          still uniformity issue.  Replaced pad conditioner (371 wafers).
          System at verify.
 
37.314SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:148
STRATA::WESTPHAL                                      5 lines  20-OCT-1995 18:42
                             -< HANDLING PROBLEM >-
--------------------------------------------------------------------------------
WSTK.1 - Down for wafer handling problems.  The shuttle drove backwards into
	 the wafers but no wafers were broke.  Found that the torsion spring
	 that causes the shuttle to make its turn was sheared.  Pulled all
	 necessary parts to replace the spring and cleaned/lubed the rails
	 and parts.  Returned the tool to production.
37.315SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:1410
STRATA::DEJORDY                                       7 lines  24-OCT-1995 18:53
                      -< Polish wafer not being sensed. >-
--------------------------------------------------------------------------------

WSTK.1  System went down for p/wafer not sensed. Found that the vacuum was
	low at 10. Removed both selenoids and the flow block. Blew n2 through
	the selenoids and the flow block,reinstalled back into the system and
	cycled wafers through system without further problems. Vacuum is still
	only at 14 in. The valves might need to be replaced soon. Gave system
	back to production to finish there lot.
37.316SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:1511
STRATA::WESTPHAL                                      8 lines  26-OCT-1995 20:08
                              -< Vacuum problem >-
--------------------------------------------------------------------------------
WSTK.1 - Down for alarms for missing wafer from the arm and dropping wafers.
         Noticed the polish arm gauge was reading only 12.  So checked for 
	 problems with the vacuum.  The soft water flow was alittle lower than
	 WSTK.2 so changed the filter out but that didn't make any difference. 
	 Took soleoids 12 &14 off and blew N2 through them and cleaned the
	 venturi block but all looked okay.  The the gauge would read 19 after
	 30 -45sec.  Put a gauge on the line before the 4-way and it climbed
	 to 19 after about 6sec.  Line may need replacing.  Ran out of time.
37.317SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:1513
STRATA::REDRIVERS                                    10 lines  27-OCT-1995 05:24
                                  -< WSTK.1 >-
--------------------------------------------------------------------------------
WSTK.1 - Continued from day shift...put system back together then removed
         the vacuum line going to the top of the polish arm and blocked it 
         off and the vacuum went up to 19Hg. Removed the carrier and button 
         and noticed the button oring was damaged and that part of the assy
         was missing. Took everything off of the carrier area and put it 
         together the way it should be and noticed that an oring was
         missing on the upper part of the carrier assy and the other one
         was damaged, replaced the two in the upper part of the carrier
         assy and the one on the button. Put on a new carrier and every-
         thing ran normally. Ran two cassettes without any errors.
37.318SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:1512
STRATA::WESTPHAL                                      9 lines  27-OCT-1995 19:34
                             -< VACUUM POROBLEMS >-
--------------------------------------------------------------------------------
WSTK.1 - Down for vacuum problem, the vacuum gauge to be reading only 5 in of 
	 hg.  Pulled the arm cover and found the vac line on the shaft with a 
	 hole worn through it.  replaced the same but gauge would only read
	 13.  Checked the pressure before the 4-way (16 Hg) in the arm.  Re-
	 placed the 2 gauges and vac line w/ only a vac line and mounted a
	 single gauge on the counsel.  Still couldn't draw 20 Hg.  Found  the
	 venturi block to be leaking, so T-taped the fittings and the vacuum
	 drew to 19.  Put the system to scheduled down for the monthly.

37.319SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:157
STRATA::WESTPHAL                                      4 lines  28-OCT-1995 19:36
                              -< RING ON WAFERS >-
--------------------------------------------------------------------------------
WSTK.1 - Down for rings on wafers.  Changed out the carrier but no real
         improvement  Checked to insure that the vacuum was turning off and it
	 was.  Then changed out the pad an ran some more wafers looks good 
	 but operators are running a polish rate wafer to make sure it is good. 
37.320SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:156
STRATA::FRANCIS                                       3 lines  28-OCT-1995 22:32
                        -< WSTK.1 Rings on the wafers. >-
--------------------------------------------------------------------------------
WSTK.1 - Down for rings on the wafers. The previous shift changed the pad
    	and carrier. Polish rates were run at the beginning of the shift 
    	and they came in. Back up.
37.321SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:157
LUDWIG::REDRIVERS                                     4 lines   1-NOV-1995 05:48
                              -< DROPPING WAFERS >-
--------------------------------------------------------------------------------
WSTK.1 - Down for dropping wafers on primary platen.  Replaced the center
         Oring in the carrier and balanced the polish arm, it wasn't all
         the way down on the platen when the stablizer kicked in. Ran two
         cassettes of wafers with out any problems.
37.322SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:1511
STRATA::WESTPHAL                                      8 lines   1-NOV-1995 19:36
                                -< low polish >-
--------------------------------------------------------------------------------
WSTK.2 - Down for problems w/ edge uniformity and a low polish rate.  Started
	 on Tim's action plan.  Pulled the cover and checked the cam and
	 knuckle.  Both looked good.  Shaft height is high at 1.182 but may not 
	 be totally accurate because the shims are rocking.  Still needs the	
	 conditioning arm cal.
 

                         
37.323SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:156
STRATA::REDRIVERS                                     3 lines   3-NOV-1995 03:10
                            -< WSTK.1 SHUTTLE JAM >-
--------------------------------------------------------------------------------
WSTK.1 - Down for shuttle jam sensor.  Reset shuttle jam and had to adjust 
         the mechanical hard stop at the cassette area. The shuttle arm was
         hittihg the wafer causing the shuttle sensor to activate.
37.324SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:157
STRATA::REDRIVERS                                     4 lines   9-NOV-1995 02:24
                           -< WSTK.1 BROKEN WAFER  >-
--------------------------------------------------------------------------------
WSTK.1 - Down for broken wafer at exit cassette...removed the exit cassette
         assy and broke it down to clean then reassembled it and re-installed
         into the system and gave system back to production without any
         other problems.
37.325SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:167
STRATA::FRANCIS                                       4 lines  12-NOV-1995 07:14
                          -< WSTK.1 High uniformity. >-
--------------------------------------------------------------------------------
WSTK.1 - Down for high uniformity of 18%. The Primary pad, the conditioner, 
	and the carrier were changed before the polish rate was done. 
	Checked the conditioner down force and it was at 17. Did not try
	anything else.
37.326SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:169
SCOMAN::JONES                                         6 lines  12-NOV-1995 20:25
                    -< WOULDN'T PICK UP WAFERS @ LOAD CUP >-
--------------------------------------------------------------------------------
WSTK.1	System was down for not picking up wafers at the load cup.Found
	that the vacuum switch was not working. Removed the switch and 
	cleaned it,reinstalled back into the system and cycled 5 warm up
	wafers without further problems. System is back to production.
	Polish rate and uniformity problems are in. 
             
37.327SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:167
STRATA::WESTPHAL                                      4 lines  18-NOV-1995 19:42
                               -< VACUUM SWITCH >-
--------------------------------------------------------------------------------
WSTK.1 - Down for polish arm not picking wafer from the load cup.  Vacuum was
	 drawing 22" hg.  Found that the vacuum switch was not sensing right.
	 Corrected the same and ran a boat of wafers with out any further 
	 problems so the tool was returned to production.
37.328SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:178
STRATA::FRANCIS                                       5 lines  20-NOV-1995 05:03
                 -< WSTK.1 Low polish rate and unif. was out. >-
--------------------------------------------------------------------------------
WSTK.1 - Down for uniformity being out of spec and the polish rate was
    	too low. The Primary pad, carrier and conditioner were replaced
    	because because of somewhat high counts. The polish rate was
    	good on the next try. Back to production.
      
37.329SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:1713
STRATA::DSMITH                                       10 lines  20-NOV-1995 18:47
                            -< leaking ball valve >-
--------------------------------------------------------------------------------
WSTK.1 and 2 - 
          Systems went down for leaking ball valve in the drain line.
          Tim Dyer requested that the drain ball valve that goes to the
          filter be replaced. Replaced the valve but did not see anything
          wrong with the old one. Set the old ball valve on Tims desk.
          Tim also requested the filter be changed. Production had a lot 
          of work so it wasn't changed. The filter is in the Tech Shop.
          Both systems are back to production.
      

37.330SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:1710
SCOMAN::JONES                                         7 lines  21-NOV-1995 06:58
                              -< Slurry problem >-
--------------------------------------------------------------------------------
WSTK.1 & 2 - Down for slurry high back-pressure, replaced filter and then
	     bypassed the back-pressure regulator and back-pressure returned
             to normal, WSTK.1 slurry pump one had a split in the latex hose,
             replaced hose, returned both systems to MFG for full MQC's, both
             passed and are up.  Could not find a new regulator in the stock
             room, rebuilt the old one and it put it on top of the splash proof
             box in the WSTK room to be reinstalled. 
37.331SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:1711
STRATA::DEJORDY                                       8 lines  27-NOV-1995 18:51
                       -< Vacuum not sensed on carrier. >-
--------------------------------------------------------------------------------
WSTK.1	System was down for uniformity problems and not sensing wafer
	on the carrier. Removed and inspected the vacuum switch for
	the wafer carrier and found it to have slurry build up inside
	of the switch. Reomved and replaced the vacuum switch, tested
	for wafer present when vacuum was activated to the carrier,
	switched worked without further error. Installed hand hand stacked 
    	pads system needs full MQC's.
    
37.332SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:175
SCOMAN::JONES                                         2 lines  28-NOV-1995 06:08
                              -< HIGH UNIFORMITY >-
--------------------------------------------------------------------------------
WSTK.1 - Down for high Uniformity, completed MQC's and they all passed,
	 returned to MFG.
37.333SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:179
LUDWIG::WESTPHAL                                      6 lines  30-NOV-1995 19:29
                     -< WAFERS HANGING UP ON UNLOAD SLIDE >-
--------------------------------------------------------------------------------
WSTK.1 - Was put down for the wafers floating out of cassette while in the
	 unload station. Wafers were hanging up on the water slide.  Checked
	 the level of the elevator and the cassette and found that the angles
	 are of each are canceling each other out.  Tried to adjust the
 	 problem out by tweaking the platform angle set screws.  Didn't work
	 believe the elevator may need to be shimmed.
37.334SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:187
STRATA::REDRIVERS                                     4 lines   1-DEC-1995 07:31
                           -< WSTK.1 EXIT CASSETTE >-
--------------------------------------------------------------------------------
    WSTK.1 - CONTINUED from day shift ...adjusted exit cassette so that the
         wafers would stay in the slots when indexing down and so that all
         the wafers enter the cassette smoothly ( CASSETTE IS NOT LEVEL AND
         IT DOES NOT HAVE TO BE)
37.335SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:186
LUDWIG::WESTPHAL                                      3 lines   1-DEC-1995 10:19
                              -< UNLOAD PROBLEM >-
--------------------------------------------------------------------------------
WSTK.1 - Down for wafers not going into the cassette in the unload station.  
	 Made a slight adjustment to the slide and ran a boat and a half of
	 wafers without any problem.
37.336SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:187
STRATA::FRANCIS                                       4 lines   3-DEC-1995 21:35
                   -< WSTK.1 Slurry buildup on the carrier. >-
--------------------------------------------------------------------------------
WSTK.1 - Down for losing a wafer from the carrier. Found a small slurry 
	buildup on the carrier, so it was replaced. Some wafers were
	run through and the vacuum was good. Back to production.

37.337SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:186
STRATA::REDRIVERS                                     3 lines   4-JAN-1996 23:10
                          -< WSTK.1 DROPPING WAFERS >-
--------------------------------------------------------------------------------
    WSTK.1 - Down for dropping waters...replaced carrier,button and oring
    and ran several wafers and vaccuum went from(16in hg to 22in hg). System
    is back to production.                                          
37.338SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:1822
STRATA::FRANCIS                                      19 lines   7-JAN-1996 07:22
                           -< WSTK.1 Vacuum errors. >-
--------------------------------------------------------------------------------
WSTK.1 - Down for losing vacuum. Checked the 24 VDC from the Digital output
	module for Solenoid 12 that is for the vacuum, and there wasn't any 
	voltage when the wafer release was highlighted. Replaced the Digital 
	output module and there was voltage present at wire 122 rail 1 posi-
	tion 29. Then TB7 position 12 connection had to be tightened which
	is for the protection diode for Solenoid 12, because it was very 
	loose. Also pulled the carrier off and found a nick in the fat oring 
	that the gimble fits into on the carrier. Ran a boat of wafers and
	without any vacuum problems. 
	  The system went down again for a change of the Primary and Secondary 
	pads. There are also some large wafer pieces on the bottom of the
	Primary platen basin but was not able to get them out.
	  The system went down for not picking up from the load cup. There 
	was a lot of slurry buildup on the load cup. Pulled it apart and
	cleaned the assembly off with scotchbrite since the white center 
	piece that lifts the wafer into the carrier was binding some. Ran 
	some wafers from the load station to the unload station and then some
	using the DecCmos5 recipe. Did not receive anymore vacuum errors.
	Back to production.
37.339SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:186
LUDWIG::FRANCIS                                       3 lines   8-JAN-1996 02:24
                         -< WSTK.1 Bad limit switch. >-
--------------------------------------------------------------------------------
WSTK.1 - Down for a transport error. The limit switch for the Shuttle
	to the elevator was broken. Put in a new one and ran some wafers
	without a problem. Back to production.
37.340SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:1810
LUDWIG::WESTPHAL                                      7 lines  11-JAN-1996 19:44
                     -< LOOSING WAFERS ON THE PRIMARY PAD >-
--------------------------------------------------------------------------------
WSTK.1 - Down for losing wafers when lifting off the primary pad.  Ran wafers 
	 until the problem reoccurred.  Found that the vacuum would not drawl 
	 at all.  Checked all vacuum lines for leaks or loose fittings and 
	 trouble shot down to solenoid 15 which was stuck closed. Could not
	 find the same or compareable part in stock (94 or 6). the tool is at 
	 part and the engineer will order the same tomorrow.

37.341SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:1810
LUDWIG::WESTPHAL                                      7 lines  13-JAN-1996 19:35
                              -< VACUUM PROBLEM >-
--------------------------------------------------------------------------------
WSTK.1 - Down at part.  The solenoid was listed as zero quality in stock but 
	 found what we believe to be the correct part in in the wrong bin. 
	 installed the same and the solenoid worked.  Still had a leak so the
	 button and carrier were changed out.  The tool is at verify running 
	 wafers. 
	 
 
37.342SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:1928
STRATA::FRANCIS                                      25 lines  14-JAN-1996 04:58
                              -< Vacuum problem. >-
--------------------------------------------------------------------------------
WSTK.1 - Down for wafer missing errors and for dropping wafers as the 
	Polish arm lifted from the Primary pad. We found dried slurry 
	on the carrier. Pulled the carrier off and put on another one. 
	The second wafer fell off as the arm was lifting off the pad. 
	Checked all the fittings of the vacuum line. The swagelock 
	fitting at the elbow near the vacuum switch needed a little 
	tightening. Pulled the carrier off and placed a finger over 
	the hole on the shaft, and the vacuum went to 23" of mercury. 
	Toggled the vacuum on and off 10 times with the same result.
	Put the carrier back on and the 1st wafer fell and scratched 
	the carrier. Replaced it with another carrier and slowed down 
	the raising speed of the Polish arm. Put a wafer on the carrier
	and turned the vacuum on but the gauge wouldn't go beyond 3" 
	of mercury. Tried a few more wafers with the same result. Pulled 
	the carrier off and took the center piece off the back of the 
	carrier and replaced the large oring (viton 240). Also replaced 
	the thick smaller oring (viton 216) on the carrier along with 
	the very small oring on the gimbling button (viton 015). Ran a
	boat of wafers with just loading and unloading them without a
	problem. The vacuum was getting up to 20" of mercury before the
	polish arm made it over to the Polish platen. Then a boat of 
	wafers was run using the Dec-Comos5 with a 10 second polish 
	time on the Primary. All the wafers ran without vacuum problem. 
	Put the system back up to Verify.
	
37.343SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:199
LUDWIG::DSMITH                                        6 lines  14-JAN-1996 14:53
                       -< wafers dropping during polish >-
--------------------------------------------------------------------------------
WSTK.1 - Down for wafer missing errors and for dropping wafers as the 
	Polish arm lifted from the Primary pad. 7 wafers were run using 
        the Dec-Comos5 recipe. All the wafers ran without vacuum problems. 
	Put the system back up to Verify.
	

37.344SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:1913
STRATA::FRANCIS                                      10 lines  15-JAN-1996 02:34
                           -< WSTK.1 Vacuum issues. >-
--------------------------------------------------------------------------------
WSTK.1 - Down for loosing wafers off the carrier. We put some bodine oil
	on the shaft of the piston for raising and lowering the Polish
	arm. We also changed the pad which had over 300 wafers run on it
	since the Polish arm was jerking up after about 5 seconds from 
	the pad when trying to come up because of the suction from the 
	slurry. We ran some wafers using the DEC-CMOS5 recipe and there
	were no problems with the vacuum or missing wafers. The only other 
	problem was that some wafers were not being sensed at the load
	station. After several attempts, we were able to get all the wafers
	and spaces sensed. Back to production.
37.345SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:1914
STRATA::WESTPHAL                                     11 lines  18-JAN-1996 19:40
                          -< Still dropping wafers. >-
--------------------------------------------------------------------------------
WSTK.1 - Down for loosing wafers on the primary pad.  While running wafers to 
	 determine the problem we caught the wafer flying out and noticed that
	 the vacuum (20 in/Hg) was present before the wafer was lost.  It was
	 also noticed that there was alot of surface tension.  Tried adjusting 
	 the polish limit off the platen alittle more but there is still allot
	 obvious surface tension.  Tried experimenting w/ speeding and slowing
	 the carrier speed and found that the faster the carrier was spinning
	 the more likely it was to drop wafers.  Engineering suspected the
	 rotary may be leaking the same was swapped out ran more than a boat of
	 wafers before dropping one. Ran out of time.  Also the wetting ring
	 was changed out.
37.346SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:199
STRATA::POOLE                                         6 lines  19-JAN-1996 08:16
                     -< Dropping wafer/  not enough oxide >-
--------------------------------------------------------------------------------
    System was dropping wafers on the primary pad.  Checked wafer that
    dropped and it did not any any oxide on it.  Checked the boat
    that was loaded on the system and the amount of oxide varied from
    wafer to wafer some were bare silicon.  The wafers must have 10 K
    angstroms of oxide or they stick to the pad and can cause transfer
    problems.
37.347SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:197
LUDWIG::FRANCIS                                       4 lines  21-JAN-1996 07:27
                          -< WSTK.1 Dropping wafers. >-
--------------------------------------------------------------------------------
WSTK.1 - Down for dropping and breaking a wafer during a maintenance
    	check. Put on a different pad from Rodel that Tim wanted on.
    	A new conditioner was also put on. Didn't have the time to
    	address further.
37.348SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:2011
STRATA::DSMITH                                        8 lines  21-JAN-1996 18:39
                              -< dropping wafers >-
--------------------------------------------------------------------------------
WSTK.1 - Down for dropping wafers.
         Removed the carrier and button. Found nothing wrong with the o-rings.
         Put my finger on the hole were the button pushes up inside
         and got vacuum of 20 Hg off the gauge. Replaced the button and o-ring.
         Put the carrier together and ran 5 wafers thru the polish cycle.
         No wafers were dropped. Gave system back to production.
         Later had High Particles. Flush out DI lines with H2O2 and sprayed
         the Final and Primary pads with the spray gun. System is at Verify-U 
37.349SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:2010
STRATA::FRANCIS                                       7 lines  22-JAN-1996 07:29
                          -< WSTK.1 High particles. >-
--------------------------------------------------------------------------------
WSTK.1 - Down for particles. We flushed the system out with H2O2, as did 
	the previous shift, and wiped and sprayed off the unload station.
	A particle check on the whole system was out at 235. A particle 
	check was done on just the load station to the unload station
	and it was out at over 1900. The shuttle and loadcup was cleaned
	along with the unload station. The operator was going to do the
	particles on the load and unload stations again.
37.350SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:209
STRATA::DEJORDY                                       6 lines  22-JAN-1996 19:33
                              -< High particles. >-
--------------------------------------------------------------------------------
         
WSTK.1	System was down for high particles.Completed the monthly pm and 
	removed the load cup. Cleaned the load cup and shuttle assembly.
	Vacuumed out the load station area and wiped it out with ISO.
	Reinstalled the load cup and gave system back to production for 
	full MQC's. All MQC's passed even the particles came in at 21.
37.351SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:207
SCOMAN::JONES                                         4 lines  29-JAN-1996 03:57
                        -< CRACKED PRIMARY SPRAY RING >-
--------------------------------------------------------------------------------
WSTK -1 Down for water leaking into basement, investigated and found the
	primary spray ring (PN# 372-44219-1)was cracked at the water supply 
        fitting. Tried to order one from stock using 94-30650-00, none were
        on hand, put in a shortage request, system still down.
37.352SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:208
STRATA::DSMITH                                        5 lines  31-JAN-1996 16:50
                                   -< leaks >-
--------------------------------------------------------------------------------
WSTK -1 Down for water leaking
        The water ring was not leaking but the fitting underneath
        was. Tightened and re-taped the fittings. No more leaks.
        System is back to production.

37.353SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:207
STRATA::DEJORDY                                       4 lines  18-FEB-1996 19:04
                          -< Pad wetting spray arm. >-
--------------------------------------------------------------------------------

WSTK.1	System went down for the pad wetting supply arm was spraying
	the deck of the system. Bent the tab at the end of the arm down
	more and the spray was now in the center of the platten. 
37.354SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:207
SCOMAN::GILMAN                                        4 lines  20-FEB-1996 15:05
                               -< TUBING BURST >-
--------------------------------------------------------------------------------
WSTK.1 - Down for the Tubing inside Slurry Pump#1 bursting.  Replaced the
	tubing and ran the Flush Cycle with no problem.  Put back into 
	Production.

37.355SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:2010
STRATA::DEJORDY                                       7 lines  21-FEB-1996 15:40
                    -< Flow block,wiring,leaks,selenoids. >-
--------------------------------------------------------------------------------
WSTK.1	System went schedual down for the flow block needed to be re-
	attached to the top deck. Reconnected the flow block and fixed
	leak at fitting for the exit water track. Butt spliced 20 wires
	to many different selenoids in the fluids cabinet.Remounted the 
	selenoide # 12 and the flow block,also mounted the selenoide for
	the vacuum venturie. Ran out of time to check the leak at the dump
	valve for the exit station. 
37.356SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:216
STRATA::REDRIVERS                                     3 lines  20-MAR-1996 05:38
                           -< WSTK.1 UNLOAD PROBLEM >-
--------------------------------------------------------------------------------
WSTK.1  Wafers would not transfer from exit tray to exit cassette. Wafers
        were hitting the top of the slots, adjusted the cassette up switch
        up about 1/64 of an inch.
37.357SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:218
STRATA::STANDING                                      5 lines  23-MAR-1996 19:04
                              -< Low uniformity >-
--------------------------------------------------------------------------------
    WSTK.1   Down due to polish rate uniformity being NEG.  Checked WSTK.2
    uniformity and say that it was going NEG.  Checked the pads and they
    were lot number JX5RC8, which they been put on early in week.  Told
    them to change the pads with a different lot number and uniformity came
    in on number #1 and I put it up.
37.358SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:218
STRATA::STANDING                                      5 lines   5-APR-1996 19:14
                       -< Conditionar arm, Pump slurry >-
--------------------------------------------------------------------------------
    WSTK.1   Went down for conditioning arm not moving across the pad, and
    slurry pump tubbing rupturing.  Took apart conditioning arm and
    tightened the shaft gear that had become loose.  Replaced the pump
    ruptured tubbing with a new one.  Returned to production.

37.359SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:216
SCOMAN::JONES                                         3 lines   9-APR-1996 06:59
                              -< high particles >-
--------------------------------------------------------------------------------
WSTK.1 - Down for particles, flushed system with H2O2, including wiping down 
         all wafer contact surfaces, load blade and cup and exit slide and QDR,
         system is at verify.
37.360SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:219
STRATA::DSMITH                                        6 lines  28-APR-1996 17:13
                                -< water track >-
--------------------------------------------------------------------------------
WSTK.1 - Down for not ejecting wafer from water track.
         Adjusted D.I. flow to the bowl jets. And also adjusted the
         leveling screw for the slide. Ran several wafers without
         any errors. back to production.


37.361SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:225
FABSIX::D_SMITH                                       2 lines  30-APR-1996 19:10
                               -< filter change >-
--------------------------------------------------------------------------------
Filter change completed on Slurry bulk lines.

37.362SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:227
STRATA::STANDING                                      4 lines   1-MAY-1996 14:37
                        -< Polish arm position error. >-
--------------------------------------------------------------------------------
    WSTK.1   Down for polishing arm position error.  Went into manual arm
    position and could not raise the arm up in the clean station.  Rebooted
    system and checked mechanical encoder, OK.  Ran a boat of wafers with
    no problem.  Returned to production.
37.363SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:225
SCOMAN::JONES                                         2 lines   5-MAY-1996 01:26
                          -< SLURRY PUMP ONE RUPTURE >-
--------------------------------------------------------------------------------
WSTK.1 - Down for slurry pump 1 hose rupture, replaced hose, test sat,
         returned to MFG.
37.364SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:2217
               <<< SCOMAN::SILVER$:[NOTES$LIBRARY]ETCH.NOTE;4 >>>
                                   -< ETCH >-
================================================================================
Note 96.405                     WESTECH PASSDOWN                      405 of 437
STRATA::FRANCIS                                      10 lines   7-MAY-1996 07:07
                        -< WSTK.1 Uniformity problems. >-
--------------------------------------------------------------------------------
WSTK.1 - Down for a high edge uniformity. Found the Axial sweep off at
	0.010". The spec is 0.005". Also adjusted the arm leveling, the
	carrier runout, and the down force. The down force was 20 lbs
	less on the screen compared to the meter. The carrier shaft
	height was good. Put on another set of pads and gave the system
	back to production for MQCs. The particles, polish rate, and 
	edge uniformity was good, but the overall uniformity was high
	and out at 19% (UCL:15%). The operator ran 10 warmup wafers
	before the polish rate. He's going to run another set of warmup
	wafers and try another polish rate which will be done ~ 7:45am.
37.365SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:2217
STRATA::DSMITH                                       14 lines   7-MAY-1996 19:09
                         -< vacuum problem and unif. >-
--------------------------------------------------------------------------------
WSTK.1 - Down for a high edge uniformity. And for no vacuum during pick up.

         Vacuum problem: Good vacuum was traced all the way through lines.
         Only thing found wrong was the Button was nicked on the side.
         Pulled the button off and put my finger on the hole. The vacuum 
         gauge was at 20. Put new button on and changed the carrier 
         and still will not pick up wafer at load station. Put the old carrier
         back on. Noticed D.I. Load Spray was not enough to prewet wafer. 
         Changed the time from 2.0 to 2.3. It now picks up wafer continously.
        
         Uniformity issue: The Operations Tech. found that the wrong wafers
                           were used for MQC's. Uniformity is now in spec.  
        
        System back to production.         
37.366SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:2212
               <<< SCOMAN::SILVER$:[NOTES$LIBRARY]ETCH.NOTE;4 >>>
                                   -< ETCH >-
================================================================================
Note 96.407                     WESTECH PASSDOWN                      407 of 437
STRATA::FRANCIS                                       5 lines   8-MAY-1996 01:52
                          -< WSTK.1 Vacuum problems. >-
--------------------------------------------------------------------------------
WSTK.1 - Was down for vacuum errors at the lift cup. Found the air lines
    	for the lift cylinders and the lines going to the lift cup were
    	caught between the 2 cylinders. The upper cylinder had to be
    	rotated CCW to get them out. Ran 2 boats of wafers and they ran
    	fine. The system was put up.
37.367SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:2211
STRATA::DSMITH                                        8 lines   8-MAY-1996 18:35
                        -< conditioner arm home switch >-
--------------------------------------------------------------------------------
WSTK.1 - Conditioner arm was not at home position.
         Operator also noticed that is was skipping across table.
         Removed the covers from the conditioner arm and removed
         conditioner arm assembly. Found the Home position switch
         pushed in and held in from slurry build-up. Replaced switch
         and put everything back together. Ran 5 times with no problems.
         System is back to production. 
         
37.368SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:236
STRATA::REDRIVERS                                     3 lines  10-MAY-1996 07:17
                            -< WSTK.1 POLISH RATES >-
--------------------------------------------------------------------------------
WSTK.1 - Down for low polish rates. Ran polish rate test and they were good
         but edge uniformities were high. Replaced the button and adjusted
         the counter weights. All MQC's came in. 
37.369SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:239
STRATA::STANDING                                      6 lines  11-MAY-1996 19:02
                         -< WSTK.1 Load cup problem. >-
--------------------------------------------------------------------------------
    WSTK.1  Down for not picking up the wafers from the load cup properly. 
    Removed load cup for inspection, found nothing.  Noticed that the cup
    was not coming up enough to meet the polish arm.  Found nothing wrong
    with the polish arm, so I added a washer/spacer under load cup
    retaining bolt.  This fixed problem.  Production then ran tool to bring
    polish rates down in order to pass.
37.370SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:239
SCOMAN::JONES                                         6 lines  19-MAY-1996 08:03
                          -< vacuum switch replaced >-
--------------------------------------------------------------------------------
WSTK.1 - Down for wafer not sensed on polishing arm, vacuum was 23.5 0n the
         vacuum gauge, flushed the carrier for several minutes to try and
	 improve, had no increase in vacuum, replaced the carrier and this also
         had no effect, checked all the vacuum lines were tight and then
	 shorted out the vacuum switch to see if the indication would change,
         it did, replaced with a new switch, system is at verify.
37.371SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:238
SCOMAN::JONES                                         5 lines  26-MAY-1996 00:36
                            -< SLURRY PUMP FAILURE >-
--------------------------------------------------------------------------------
WSTK.1 - Down for primary slurry pump hose rupture, the tool had not been used 
         for a few days and when the operator started MQC's the hose ruptured,
         also found the primary heat exchanger cooling water supply was
	 isolated, opened the supply valve and replaced the slurry hose,
	 returned system to MFG to finish MQC's.
37.372SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:237
SCOMAN::GALLANT                                       4 lines  30-MAY-1996 00:38
                               -< Pads replaced >-
--------------------------------------------------------------------------------


  WSTK.1   Manufacturing requested to have the primary and final pads 
           changed. Replaced pads and returned system. 
37.373SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:238
STRATA::STANDING                                      5 lines  30-MAY-1996 15:00
                     -< Conditioner arm set screws loose. >-
--------------------------------------------------------------------------------
    WSTK.1  Down for unstable uniformity rates.  Found the pad conditioner
    not working properly.  It would not sweep the pad fully.  Found the fly
    wheel set screws had worked loose. Tightened same.  Returned to
    manufacturing for MQC's after running 6 warm ups.

37.374SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:248
STRATA::STANDING                                      5 lines   1-JUN-1996 19:15
                              -< High uniformity >-
--------------------------------------------------------------------------------
    WSTK.1  Down for completion on monthly PM.  After MQS Uniformity came
    in at -12.   Removed carrier and the button fell out in my hand. 
    Replaced button and carrier.  Uniformity came back high at 15.  Could
    not find anything wrong.  Had operator run 12 warm ups and recheck. 
    Results not done yet.
37.375SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:2422
STRATA::FRANCIS                                      19 lines   3-JUN-1996 07:19
                       -< WSTK.1 Polish rate problems. >-
--------------------------------------------------------------------------------
WSTK.1 - Originally down for high edge uniformity. The operator had to 
	replace the primary pad since only the top pad was on it. The
	suba4 pad wasn't put on. After having to scotchbrite the platen
	because of a lot of glue, he put on both layers of pads and ran
	the MQCs. The polish rate was very low at 368. Pulled the cover 
	off and had to adjust the safety cam away from the major vertical
	shaft. He ran 10 more warmups before the polish rate, and the 
	overall uniformity was the only thing out at 16.4. He ran 10 more
	warmups, and the polish rate was the only data out at 871. The
	overall and edge uniformities were close to being out at 14.7 and
	13.3, respectively. The conditioner, carrier, and pads were new
	before the MQCs. Decided to pull the primary pad and check the
	down force cal. At 200 psi, the actual was 10 psi lower. Cal'd
	the down force and saved it to the config. Checked the primary
	platen temp on the process temp page and it was at CNTL for 90 F.
	The analog data page was staying at 67 F. Checked the actual temp
	and it was at 72 F. Cal'd the primary platen temp and saved it to 
	the config. Replaced the pad and the operator is going to run the
	MQCs again.
37.376SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:246
STRATA::FRANCIS                                       3 lines   4-JUN-1996 06:05
                -< WSTK.1 Low polish rate and high uniformity. >-
--------------------------------------------------------------------------------
WSTK.1 - Down for high overall uniformity of 24 with a low polish rate
    	of 780. A full boat of wafers was put on. Production will run
    	the polish rate afterwards. The system is at Verify.
37.377SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:2413
SCOMAN::TDYER                                        10 lines   4-JUN-1996 08:03
                             -< entry from 6/3   >-
--------------------------------------------------------------------------------
    
    ENTRY FROM 6/3
    
    WSTK.1 - Poor edge uniformity, lower rate removal and center fast unif.
             Calibrated conditioner ACTUAL downf force for 7lbs @15psi
             (as original POR). Noted conditioner was not sitting flat on
             pad, replaced, also adjusted gimble. Carrier button was
             inspected, it had a plastic shavings on it, replaced.
             Installed a fab6 Speedfam pad. 
    
37.378SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:2410
STRATA::STANDING                                      7 lines   4-JUN-1996 18:50
                     -< Poor Uniformity and polish rate. >-
--------------------------------------------------------------------------------
    WSTK.1   Down due to poor uniformity and polish rate.  Removed pad and
    installed a machine stacked IC1000 pad.  Polish rate and uniformity came
    back low and high.  Checked down force, reballanced arm and installed
    new stacked pads.  Also ran with old carrier from WSTK.2 to see if it
    would make a difference, it didn't make a hole lot.  Tim Dyer asked
    that a 20um carrier be made  up.  Production has yet to finish the
    carrier.
37.379SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:2420
STRATA::FRANCIS                                      17 lines   5-JUN-1996 05:49
                -< WSTK.2 Polish arm hitting conditioner arm. >-
--------------------------------------------------------------------------------
WSTK.1 - The operator noticed that the polish arm was hitting the conditioner
	arm on its way over from the clean station to the Final pad. Checked
	the Clean station panel of the Pad maintenance panel, and the Primary
	wafer clean time was set to 4 seconds. It was changed to 6 seconds.
	Now the polish arm passes over the primary when the condition arm is
	all the way over to the platen edge. Checked DCS and the Primary wafer
	clean is supposed to be set at 30 seconds for the DEC-CMOS5 recipe. 
	The operator said that the time was changed to fix wafer vacuum
        problem. So, the time was left at 6 seconds. The change was saved to 
    	the DEC-CMOS5 recipe. Checked the Particle, Warmup, and Idle recipes, 
    	and they were set to 30 seconds. We noticed that the carrier wasn't 
    	going down into the clean station for wetting when using the Idle 
    	recipe. Checked the same Clean station panel and the Carrier wetting 
    	time and Carrier wetting interval time were set at 0. In DCS, they 
    	are set at 10 and 120 seconds, respectively. Changed both of them and 
    	then saved the changes to the Idle recipe. Gave the system back to 
    	production and it passed all the MQCs.
37.380SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:2512
SCOMAN::GALLANT                                       9 lines   7-JUN-1996 02:02
                                -< Glycol Leak >-
--------------------------------------------------------------------------------


     Completed W-pm 

     Repaired leak on the heat exchanger circulator pump. Replaced worn 
     PVC fittings and checked for leaks. None found. System was released 
     back to manufacturing.

         
37.381SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:2512
STRATA::STANDING                                      9 lines   7-JUN-1996 17:41
                        -< Broke wafer on primary pad >-
--------------------------------------------------------------------------------
 WSTK.1    Down for breaking a wafer on the primary platen.  When I came in on
           the tool there was a boat of product wafers still in the unload
           station and the Idle recipe loaded, also found the process timers
           set for zero and the slurry pump turned off.   When operator came
           back into the room she stated that she had put the tool into the
           idle mode.  After running 10 wafers and finding nothing wrong,
           changed out the both pads as per Matt Vanhanehem request.  Ran 10
           more wafers before turning over to production for MQC's.

37.382SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:2515
SCOMAN::GALLANT                                      12 lines   8-JUN-1996 07:10
                             -< High Uniformity  >-
--------------------------------------------------------------------------------


     WSTK.1  

     System went down for high uniformity. Checked temperature on the final 
     manifold which was low (56F). Removed the fill plug on the heat exchanger 
     and noticed pressure build-up. Installed plug and loosened bleed on top 
     of heat exchanger cylinder. Let stabilize and checked temperature again,
     which was increasing. Manufacturing ran uniformity tests with good results.

      
         
37.383SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:257
STRATA::FRANCIS                                       4 lines  11-JUN-1996 02:41
                    -< WSTK.1 Conditioner arm popping up. >-
--------------------------------------------------------------------------------
WSTK.1 - The conditioner arm was popping up when it was at the center of
    	the pad. Adjusted the end efector so that it was parallel with
    	with the pad. Ran the conditioner 5 times and it didn't pop up
    	at all. Gave the system back to production.
37.384SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:2513
SCOMAN::GALLANT                                      10 lines  14-JUN-1996 05:27
                -< Wafer releasing from carrier unexpectedly. >-
--------------------------------------------------------------------------------


   WSTK.1     During the primary polish cycle the wafer would release 
              from the carrier. According to the vacuum gauge, vacuum 
              appeared to be operating correctly. Replaced carrier 
              assembly and oring. Cycled 10 wafers on the process 
              recipe that was releasing the wafer with no problems. 
              The carrier that was removed from the the system has 
              been labeled and located in the chase.  
  
37.385SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:258
LUDWIG::STANDING                                      5 lines  20-JUN-1996 19:13
                           -< Rotary union failed. >-
--------------------------------------------------------------------------------
    WSTK.1    Down for glycol leaking from the rotary union.  Replacing the
    rotary union involved removing the platen and part of the glycol port
    on top of the spindle.  Installed new rotary union, filled glycol
    reserve and started tool up.  Found no leaks.  Checked platen run out
    it was .008,  ran out of time to reseat platen.  
37.386SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:259
LUDWIG::REDRIVERS                                     6 lines  21-JUN-1996 06:01
                              -< WSTK.1 RUNOUTS >-
--------------------------------------------------------------------------------
    WSTK.1 - Continued fromday shift.. Had to remove platen and tighten the
    four mounting bolts under the platen assy and the three screws that
    hold the spindle cap on were loose. Replaced the cap and the platen and
    the runout was in at  0.004. Tried to home the robot and it would not
    move because it had no referance. Found a broken wire on the home
    switch underneath the tool.
37.387SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:2613
STRATA::STANDING                                     10 lines  21-JUN-1996 16:40
                   -< Primary platen not commin up to temp. >-
--------------------------------------------------------------------------------
    WSTK.1  Continued from previous shift.  Primary platen not displaying
    any temp.  Checked TC it was OK.  Found broken wire on TC connector,
    repaired same.  Ramped up plated temp to 110 deg platen did not go
    above 72 deg. Tried to Cal it no change.  Noticed primary chill water
    to heat exchange had a constant flow, indicating that the mixing valve
    was open.  Checked voltage to sol21 it was zero, sol21 was stuck open. 
    Checked stock room for new one, none in stock, submitted a shortage
    request.  Disassembled old one and cleaned it up.  Reassembled and
    reinstalled.  This time it worked, but for how long?  Set platen temps
    to 70 deg and returned tool to production.
37.388SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:265
SCOMAN::JONES                                         2 lines  24-JUN-1996 05:45
                           -< slurry hose blow out >-
--------------------------------------------------------------------------------
WSTK.1 - Down for Slurry pump 1 line rupture, replaced tube and tested,
         returned to MFG.
37.389SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:266
STRATA::STANDING                                      3 lines  24-JUN-1996 11:01
                           -< Replaced Mixing valve >-
--------------------------------------------------------------------------------
    WSTK.1  Replaced sticking sol21 the heat exchanger mixing valve.
    Returned tool to production.
    
37.390SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:265
SCOMAN::JONES                                         2 lines  25-JUN-1996 06:28
                              -< CHANGED CARRIER >-
--------------------------------------------------------------------------------
WSTK.1 - Down for wafer not picked up at load, operator rebuilt carrier and
         it retested sat returned to MFG.
37.391SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:2610
SCOMAN::GALLANT                                       7 lines  27-JUN-1996 05:44
                         -< Conditioner arm failures >-
--------------------------------------------------------------------------------


    WTSK.1  System went down for conditioner arm failures. Found broken
            wire and repaired. Rerouted wire to alleviate the stress tention
            that was present. Cycled twenty wafers with no problems.

                                                 
37.392SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:265
SCOMAN::JONES                                         2 lines  30-JUN-1996 07:25
                               -< out of slurry >-
--------------------------------------------------------------------------------
WSTK.1 - Down for being out of slurry, put town to Bulk Chem, message was left
	 for them.
37.393SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:267
SCOMAN::GILMAN                                        4 lines  30-JUN-1996 15:50
                               -< No bulk chem. >-
--------------------------------------------------------------------------------
WSTK.1 & WSTK.2 - Down for No Bulk Slurry.  A problem was found with a Pump
	down in Bulk Chemical.  The on-call Tech was called and he fixed the	
	problem.  Both systems were put back up.

37.394SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:278
STRATA::FRANCIS                                       5 lines   7-JUL-1996 07:04
                         -< WSTK.2 Scratched carrier. >-
--------------------------------------------------------------------------------
WSTK.1 - The carrier dropped a wafer while rising from the Primary pad.
    	Removed the wafer and tried to run some more wafers. The next
    	couple of wafers came up missing wafers. Pulled the carrier
    	off and found 2 scratches. The operator replaced the carrier.
    	The tool was returned to production. 
37.395SUBPAC::BJUBINVILLECMP-6 Equipment EngineeringThu Oct 17 1996 06:277
STRATA::STANDING                                      4 lines  15-JUL-1996 17:40
                          -< Conditionar arm erratic >-
--------------------------------------------------------------------------------
    WSTK.1    Down for conditioner arm acting erratic.  Removed
    conditioner unit and found the motor flywheel loose.  Tightened and
    added lock tight.  Lubed flywheel shaft.  Returned tool to production.

37.396day tanks cleanedFABSIX::T_LANDRYTue Nov 05 1996 19:2121
    
    Per request........
    
    We emptied both slurry day tanks today.  We then proceeded to chisel
    away the Aqueous slurry from in, on top and around the day tank.  Oh
    ya, the containment pan was an extra special treat.  Thank God for that
    little propeller in the sink.  It came in real handy when used as a
    rheaming device to clean out the clogged drain.   Once the slurry was
    finally removed, we refilled the tank with water and circulated for
    several minutes.  We then drained this residue (which drained well now
    that the "chunks" were out of the drain).  Again, we filled the tank
    with water and have left it circulating until new slurry is installed.
    
    As for the metal slurry, it was a candy job compaired to the Aqueous.
    Just a matter of rinsing, filling, draining, filling, etc.  As with the
    other tank, this one has been filled with water and is circulating.
    
    Both tank feeds/returns were flushed in this procedure.  And, the water
    continues to cycle through the system as well.
    
    					A shift
37.397final table padconditioner installedLUDWIG::FINNTue Jan 07 1997 19:1911
	Wired and installed new final pad conditioner arm. Aligned to system
        for clearance height and sweep. tested aok. 
        
        Please note that tool has been added to the equipment tracking system 
        and is now available for logging to proper states. Tool official name 
        is CMP.C1. System is currently IDLE.


							A shift

37.398Ready for MQCSTRATA::KRUPAFri Jan 17 1997 08:183
    New carrier installed with DF200 film.  20L of slurry mixed.  PANW pad
    installed.  New drum of SC112 brought upstairs. Ready for MQC testing
    and defect baseline.  
37.399Conditioner / carrier lift-off positionFABSIX::R_GEETue Jan 21 1997 19:089
	The conditioner arm wasn't returning to the home position. 
	Adjusted the sweep-out speed up.  Left the system in wet
	cycle. 

	Still need to adjust the final table lift-off position &
	up speed.

					A shift
	
37.400EDGE LIFT OFF TROUBLEFABSIX::B_WESTPHALWed Jan 22 1997 19:4322
    
    
    CMP.C1-7 - Down for problems with lift off on the final polish.  Surface 
	tension would not allow the polish arm to lift off the final table with
	the edge lift off activated.  The edge lift off was checked and we 
	attempted to adjust ELO position. Several variations of carrier and
	platen speeds were tried and a smaller pad was also used to increase 
        the ELO.  The problem was still there.  Suspected that the arm up/down 
	cylinder might be bad.  Replaced the same but this didn't seem to make 
	a difference.  Tim reconfigured the tool so that it will not use an edge
	lift off and made various adjustments to air flows and table & carrier
	speeds.  The tool seems to be operating better.  Its lifting off
	smoothly but some additional adjustments and verification may be
	necessary tomorrow.  There was also a problem with the final platen's 
	conditioner not sweeping out properly.  The problem seemed to be with
	the C. arm's up limit switch being out of adjustment.  That is working
	properly now.





37.401CONDITIONER MOD, LIFT OFFSTRATA::TDYERThu Jan 23 1997 15:3322


    CMP.C1-7 - Continue edge lift and conditioner test today.
        - The lift off process we found to work on an IC1000 on the 2nd
          table is:   	CENTER LIFT
                	OSCILLATING
                	CAR = 4,  PLAT = 4
                        DI WATER

        - If in fact the IC1000 is selected for permanent use, we may want
          to try modifying the carrier vacuum holes and cutting the table
          top for greater edge lift.

 	- Lift off on the suba-500 pad required no special requirements.

	- The 2nd table conditioner was modified today and the "old" style
	  1X2" TBW end effector installed. 25 wafers cycled through in 
	  CONTINUOUS mode with NO problems. A permanent, more robust end 
	  effector will be designed in the near future.


37.402FINAL PLATEN NOT HEATINGFABSIX::B_WESTPHALFri Jan 24 1997 19:433
CMP.C1 - Final platen not heating up.  Believe that the heater element is bad.
	 Ordered a new part it should be here tomorrow.

37.403temp problem /leakLUDWIG::FINNMon Jan 27 1997 19:3819

	Continued troubleshooting final platen temp problem.  Checked V32 in 
side heat exchanger with a meter as front screen is toggled between heat and 
cool. Valve opens and closes in this mode. Suspect problem further back. Tried 
to verify tc and temp readings. Inadvertently changed temp calibration on both 
final and Primary platens due to our confusion on which screen we were on.
Thought we were changing set point.

	Before we continue we need to recalibrate. We followed the procedures 
in the book ( actually pretty straight forward, Unfortunately, actual temp would 
not change to match our fluke temp display as we adjusted the analog variables.

	Also noted ( as we were under the system hooking up the tc to the 
fluke) that the Final platen rotary union is leaking. Next item on list.


					A shift
 
37.404temp problem LUDWIG::FINNTue Jan 28 1997 18:4843


Continued trouble shooting temp platen problem. Final temp display was now 
stable, but the drift problem had mysteriously switched to the primary platen 
display, huh? It exhibited the same drift that the final platen had displayed
yesterday ?? Analog inputs to opto22 were switched between channel 15 and 8, 
(final and primary tc inputs). Primary channel was always dead even with    
Final tc as input. Withdrew an opto22 analog  brain board and and control 
board.

While that was on order we removed and cleaned v32 seat. The solenoid was 
working but the valve seat was always open, not allowing the heater to come to 
temp  setpoint. (Just like you said Brad!).  Adjusted Float switch so arm will 
raise and lower with water level. Ohmed out heater and it was comparable with 
the other two heaters (~20 Ohms). Added Glycol.

Fired the puppy up and it heated to temp and past. Both temps were now 
displayed. We did not install the boards. We put all covers back on in the 
event it was temp related, but drift did not return. Returned boards to stock.


 Spent the rest of the day calibrating both Primary and Finial platens, so 
that set displayed readings are the same as actual temp. Also verified 
Temp/pressure variables IE sample rate and band width are appropriate for 
good response with minimal overshoot control. They are all within 
Factory recommended limits.

Currently, the system is up and idle in wet mode/continuous with the 
following temps

			Primary     Final 
      		      _____________________________

	Setpoint         65         91    

	Display          66	    91

	Actual           66.9       90.6


						A Shift and Tim

37.405Slurry pump sprang leak.STRATA::STANDINGThu Feb 06 1997 16:367
    CMP.C1-7   The primary slurry pump had a rupture in the pump tubing. 
    Replaced tubing and started back up.  Pump then ruptured again. 
    Replaced tubing again and ran the pump unloaded.  It ran fine.  Hooked
    it up to the slurry filter housing(filter was removed) and unhooked the
    output of filter housing.  Did not get any flow out of housing. 
    Removed housing and found a clog in the input hole.  Cleaned housing
    and reinstalled same.  Tested OK.  Returned tool back to ENG.
37.406Arm not arriving upSUBPAC::BJUBINVILLECMP-6 Equipment EngineeringFri Feb 07 1997 04:029
    
        The tool was down for "arm not arriving" at shift change.
     Since I don't even have a clue as to even how to turn the tool 
     on, I called upon the spiritual guidance of Red Rivers.  Red found
     that the arm UP switch wasn't being made and adjusted it to get
     to work.  The tool was verified and put back into WET MODE.
    
                                             BJ
     
37.407Vacuum Switch.FABSIX::B_WESTPHALThu Feb 20 1997 19:494
        CMP.C1 - Yesterday the tool would not sense a wafer on the carrier. 
    Tried to adjust the switch but could not get it to sense.  took the
    switch apart and found it to be corroded. Replaced and adjusted the
    same.
37.408CMP-C1-7 SLURRY TANKSFABSIX::E_DAWSONSat Feb 22 1997 16:0610
    	
    	Came in to find slurry tank #1 spitting slurry. Shut down pump,
    drained slurry, cleaned and cycled DI through slurry line, refill w/DI.
    Pump turned back on. Slurry Tank #1 has DI water in it.
    
    	Slurry Tank #2 was no circulating. Slurry had settled overnight.
     Shut down pump, drained slurry, cleaned and cycled DI through slurry
     line, refill w/DI. Pump turned back on. Slurry Tank #2 has DI water in
     it.  
     
37.409PUMP-SYS STALLSYIELD::TDYERMon Feb 24 1997 11:3814
    
    LOCAL PUMPING SYSTEMS PROBLEMS:

    Investigated both pump chattering and stalling problems. The return line
    for both pumps is coiled to improve mixing. However, this creates a
    significant whirlpool in the center of the tank and allows AIR to
    enter the pump input. The AIR has been causing the stalling. We put
    an obstruction in the center of the tank to disturb the whirlpool. This
    stopped all air from entering the pump. Immediately the pumps sounded
    quieter, smoother. The tungsten pump still charters slightly. I will
    order and replace this pump. When the Polishers becomes idle, we will
    drain the two tanks and weld a plastic "dam" in the center.

    TD/DANO
37.410wall welded / leaks foundSUBPAC::LANDRYWed Feb 26 1997 19:2025
    The system was not using the Metal slurry today, so we drained the
    tank, cleaned it out thouroughly, and welded a wall in the bottom of
    the tank.  This welded wall has stopped the whirlpool phenomina that
    was exhibited prior to the weld job.  Please be aware that this wall
    is fairly fragile and can easily break.  Please be careful when
    performing any maintenance in this tank.  By the way, we were unable to
    find the proper welding rod to adhere this wall.  But, with a bit of
    A shift brainstorming, we were able to accomplish the feat!
    
    Later in the day, the contractors hooking up the Auriga notified us of
    chemical (tested as an acid) on the floor around their plumbing job. 
    After intense investigation, we found no chemical leak.  But, it's
    obvious someone along the line had a major metal slurry leak of some
    kind, as the evidence of streaking, dried slurry was around the pumps,
    on the poly deck and down the side of the system.  We also found water
    leaking in several spots on the system.  One was near the unload
    cassette area.  We had to use RTV to seal this up.  The second source
    of water was in the plenum around the primary table.  Much water was
    found.  It was cleaned up and all tubing in the general area was
    checked for leaks, with none found.  It may have come from the rinse
    ring/plexi cover area.  Please be aware, it may need to be rechecked 
    soon.
    
                                         A shift
    
37.411CMP.C1 Update 3/4/97SUBPAC::DANOCONNORTue Mar 04 1997 16:5610
Both Pads have been replaced to allow for processing of lot XE0555 tomorrow. 
There is a slight water leak at the connection for the Primary plateum ring
rinse so the water has been shut off.  The leak will be repaired tonight if
possible.

Tomorrow morning the system will need to be conditioned and qualified before the
lot can be processed.

/DRO
37.412CMP-C1 Update 3/4/97SUBPAC::DANOCONNORTue Mar 04 1997 17:005
The filter for the Fe(NO3)3 slurry has been changed today and a 10.0um filter
installed.

/DRO
37.413water leak updateSUBPAC::LANDRYTue Mar 04 1997 19:1712
    Located a water leak on the primary side of the system.  The tub rinse
    ring's feedthrough (which penetrates the polydeck) had a fitting on the
    bottom side of the feedthrough that was leaking.  We have re-taped the
    pipe threads and re-installed.  Time will tell if this comes back.
    And yes, the water to the ring is back on.
    
    Please be aware, that this may not be the only leaking fitting under
    the poly decking.  Please monitor it if possible.
    
                                           A shift
    
    
37.414TIM'S HIT LIST FOR .C1FABSIX::B_WESTPHALSat Mar 08 1997 20:3147
CMP.C1 needs a few adjustment. 

 1) Loader alignment; shuttle is hitting and missing wafers

  * I checked how the shuttle was picking the wafers from the cassette.  
    The shuttle was moving to far in so moved the hard stop out.  While 
    running wafers I noticed that the cassette is sitting back on an angle 
    so that the bottom wafers hit the heel of the shuttle and the top wafers 
    are closer to the toe.  This might be because of the little homemade 
    block supporting the back of the cassette.  It might need to be shaved down.
    While trying to adjust the hard stop I broke the cassette sense lever off 
    the micro switch.  This happened at the end of the shift so I didn't have
    time to replace it.  The tool presently sits w/ the switch removed, needing
    a new one and loader alignment incomplete.  Sorry about that.
    
 2) Shuttle jam sensitivity, shuttle is NOT stopping during a jam, needs
    calibration

  * Checked it and it was not working.  I found that 1 of the 2 bolts holding
    the shuttle together was loose(bottom).  Tightened the same and tested it 
    4 or 5 times.

 3) Arm down movement in AUTOMATIC is too HARD; when the arm is lowing to 
    the final table, it slams the wafer down, when it is unloading in the
    water track it slam the wafer down.....
 4) The wafer sensor in the unload cup is intermittently no sensing wafers,
    please make sure the sensor head is staying clean and the N2 is keeping 
    keeping it purge, make sensor gain adjustments as necessary.

  * I checked the load cup wafer sensor several times with a shinny tungsten
    wafer, an oxide wafer and a patterned wafer.  It sensed every time.  The
    N2 blow off also seemed to be working good.

 5) Down force alarms, I'll take care of this one
 6) Temp alarms, I'll take care of this also
 7) W-Slurry tank dam is TOO big. Bob Gee, can you please shrink down to a
    ~ 2X4" damm ?

 Please leave a very good pass down, I will follow up on any open issues on 
 Monday.

Thanks,

Tim


CC: FABSIX::B_GEE,KRUPA,DANO,FABSIX::E_DAWSON
37.415cassette sensor and moreFABSIX::R_GEEMon Mar 10 1997 19:2611
	- Replaced the two broken sensors, (cassette present & shuttle at
	  cassette. 
	- Adjusted the shuttle at cassette position.
	- Replaced the time delay module for the wafer load module, wafer
	  present sensor blowoff.
	- Slowed the down travel at final polish speed down 1/4 turn (fv6)
	  so the head lands softer. 
	- Adjusted the head balance.
	- Ran test wafers with no problems.
	
				A shift
37.418Slurry tanks / tool functionalityFABSIX::R_GEEMon Mar 17 1997 09:2816
      - Cut down the slurry tank baffles at the bottom of both
	tanks to an upside down "V" and placed a top on them to 
	reduce the whirlpool and solids buildup. If this corrects
	the problem it will be poly welded in place, so far it
	looks good. Filled both tanks with water.

      - Cleaned the metal slurry buildup on the wafer unload water track.
	(between the two poly plates).

      - Repaired an air line leak under the unload cassette.	

      - Cycled 50 wafers Manually thru the system with no errors.

	
	
37.419spindles not rotating / vacuum / recieve dump/fillFABSIX::R_GEEMon Mar 17 1997 19:3011
	- Called in because the spindles wouldn't rotate. Brendan powered 
	  down the tool, reset all the breakers,(none looked tripped) and 
	  let sit for 2 min. to let everything de-energize. Powered backup, 
	  tested o.k.
	- Errored for "no wafer on arm". Removed, cleaned and adjusted the 
	  vacuum sensor, all set.
	- The Unload cassette water would dump but not fill. Traced the
	  problem to a bad connection on the jumper at TR2. Soldered the
	  wire and tested, all set.
	
				A shift
37.420weekend hit listYIELD::TDYERFri Mar 21 1997 16:1118
    
    	This weekends adventure planed for W-CMP.....
    
    				CMP.C1
       -The Slurry tank lids need to be trimed to fit over the return
    	tubes.
       -The 2nd table dispence arm is leaking by the end plugs, please seal
    	with PVC glue.
       -The polisher needs a real good scrubing, especialy the unload area
    	and the loader cup needs to be dis-assembled and cleaned.
       -The vacuum switch triger point needs to be lowered. Currently it
    	needs to see ~15" of vaccum to detect a wafer, causing errors just
    	just prior to lift off from polish table. Please lower this to
    	trip at ~5-10" of vacuum.
    
     Thanks,
       Tim
    	     	
37.421Tim's hit list completed.FABSIX::B_WESTPHALSat Mar 22 1997 19:5732
                             weekend hit list
                           --------------------
    
    				CMP.C1
DONE   -The Slurry tank lids need to be trimmed to fit over the return
    	tubes.
             1. Lids are trimmed.
             2. Drained the SC112 tank as requested by the P.E.T..

DONE   -The 2nd table dispense arm is leaking by the end plugs, please seal
    	with PVC glue.
             1. Put 4 coats of the PVC glue on.  The same is drying.
	     2. Pads are off the tool as the P.E.T. requested.  We didn't bother
	        to put the pads back on because we didn't know what was needed
	       	on the primary.

DONE   -The polisher needs a real good scrubbing, especially the unload area
    	and the loader cup needs to be disassembled and cleaned.
             1. The tool was scrubbed with acetone.  
	     2. The loader was disassembled cleaned.  Adjustments were made to 
		the both sensors on the wafer lift assembly.

DONE   -The vacuum switch trigger point needs to be lowered. Currently it
    	needs to see ~15" of vacuum to detect a wafer, causing errors just
    	just prior to lift off from polish table. Please lower this to
    	trip at ~5-10" of vacuum.
             1. Adjusted the switch to 10".

     Thanks,
       Tim
    	     	

37.422POOR UNIFORMITYFABSIX::B_WESTPHALThu Mar 27 1997 19:505
CMP.C1 - Down for poor uniformity.  Found that all alignments were out.  The
	 carrier gearbox .0015.  Tried to bring it back in by various shim
	 arrangements but could not get in.  Ran out of time will continue 
	 tomorrow.

37.423Continued alignmentsLUDWIG::STANDINGFri Mar 28 1997 19:378
    CMP.C1-7  Continued with the alignments.  Primary platen runout was .01
    out of tolerance.  Removed platen and cleaned under it.  Checked it
    again and it was .0035  Next checked the secondary platen and it was
    very shaky at .01 also.  Cleaned under platen and rechecked it came in
    at .007  Checked the carrier sweep on both platens, primary was
    adjusted to .005, the secondary was adjusted to .006.  Ran out of time
    to finish adjustment on the carrier runout. (previously done on the
    primary platen when it was out of tolerance)  Will continue tomorrow.
37.424Alignments are out.FABSIX::B_WESTPHALSat Mar 29 1997 19:336
CMP.C1 - Still down for poor uniformity issues.  We tried all day to get the
	 arm sweep in on both platens but couldn't do it.  Tool presently sets
	 with the primary runout at .003, the 2nd table at .01 and the sweeps 
	 and gear box way out.  Ran out of time.

37.425alignmentsSUBPAC::LANDRYMon Mar 31 1997 20:0312
    Ahhhhh, what a delight to once again spend the entire day with this
    system!  It doesn't get any better than this......To cut to the chase,
    this is a brief synopsis of the day's festivities.
    
    It took us the enitre day to finally get the alignments in.  Great
    learning experience for us A shifters, but not fun!  After the
    alignments were completed, we began to re-assemble the components that
    were removed during this process.  The system sits idle.  It will need
    new pads and a carrier, as the carrier on the system is a used one just
    used to perform the final adjustments.
    
                                              A shift
37.426System Update 4-1-97SUBPAC::DANOCONNORTue Apr 01 1997 17:5519
Not a great day for processing on the Westec - System is down pretty
hard.

Installed new pads and reinstalled the "good" carrier.

- The system would not go into wet mode 

- The secondary platen would not turn

- Water or coolent started leaking out of the center of the secondary 
  platen.

Turned the system over to the Doctor after pulling off the carrier
and placing it in the hood with water flowing.

Tomorrow is another day

/Dan
37.427leak in final tableFABSIX::J_SADINFreedom isn&#039;t free.Tue Apr 01 1997 20:4210
    
    
    	Called over for bubble in final table pad (bubble in center). Found
    table chiller water seeping up through table nut. Tightened nut with no
    change. Removed nut, installed platen seal and retightened nut. No
    change. Not sure of problem source. It's leaking bad enough that
    something may be missing. Passing down to next shift (out of time). 
    
    
    a_shift
37.428Both platen started leaking and they alignments went outLUDWIG::STANDINGWed Apr 02 1997 20:3110
 CMP.C1-7    Down for the final platen leaking glycol from the spindle nut. 
           Removed nut and was unable to remove bearing seal so We had to pull
           the platen to remove a pinched O-ring.  Replaced O-ring(size .022
           KALREZ) and checked alignments, all were out.  Repositioned the
           platen several times to get the best reading for platen run out of
           .010 sweep .006 and gearbox was .010 The started to run wafers and
           noticed a big bubble forming under the primary pad.  It was glycol
           leaking out from the same spot.  Had to pull the platen to get the
           O-ring out.  Checked alignments they are platen runout .010 , sweep
           .014 gearbox was +.030.  Ran out of time to continue.
37.429SHUT DOWN COMPLETEDFABSIX::B_WESTPHALBradley BP#661 EXT# 6610Fri May 23 1997 14:5220
                        CMP.C SHUT DOWN CHECK SHEET
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
								 INIT / DATE
1) REMOVE CARRIER        					__BW__/23MAY97
2) PLACE WIPES UNDER CARRIER FILMS AND LAY CARRIERS DI TANK	__BW__/23MAY97
3) CLEAN ENTIRE SYSTEM OF DRIED SLURRY                          __BW__/23MAY97
4) REMOVE CONDITIONER AND CLEAN	      * Soaking in sink         __BW__/23MAY97
5) SHUT OFF DI BEHIND SYSTEM (ROTATE 3W VLV TO FULL RETURN)     __BW__/23MAY97
6) DRAIN ELEVATOR AND CONDITIONER TUBE				__BW__/23MAY97
7) DRY ENTIRE SYSTEM OF ANY STANDING WATER			__BW__/23MAY97


                        CMP.C START UP CHECK SHEET
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
                                                                 INIT / DATE
1) TURN ON DI WATER (ROTATE 3W VLV TO FULLY TO POLISHER.	______/______
2) INSTALLL CARRIER						______/______
3) PUT WET MODE PROGRAM						______/______

37.430startupFABSIX::B_FINNTue May 27 1997 19:2910


                        CMP.C START UP CHECK SHEET
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
                                                                 INIT / DATE
1) TURN ON DI WATER (ROTATE 3W VLV TO FULLY TO POLISHER.   ED,BF/BG/TL - 5/27/97
2) INSTALLL CARRIER					   ED,BF/BG/TL - 5/27/97
3) PUT WET MODE PROGRAM					   ED,BF/BG/TL - 5/27/97

37.431pump hoseFABSIX::J_SADINFreedom isn&#039;t free.Mon Jun 02 1997 20:006
    
    
    	replaced primary peristoltic pump hose (old one blew out).
    
    	a-shift
    
37.432DF, Knife, Vacuum switch, tubingSUBPAC::LANDRYTue Jun 03 1997 20:2034
The system had a problem today with the air/H2O knife.  The flow of air
was deemed in-adequate, dispite the 89 PSI pressure observed (when
capped off) in between the check valve and the knife.  Intense trouble 
shooting took place to increase the flow.  ALL valves, regulator, Nozzles, 
tubing were checked out and/or cleaned.  NO restrictions were found other 
than a couple of clogged nozzles.  But, that said, the flow rate should 
have been increased in the openly flowing nozzles, which was not the case.

We tried using a different piece of tubing, running straight from the back
of the system directly to the knife.  The flow rate was indeed more than 
adequate at this point.  We then starting adding on the individual compo-
nents one by one.  We eventually lost pressure (minimal) as we added on. 
We found some short pieces of tubing were stretched/twisted/restricted as
well.  We also noticed that the tubing we used to test with, had a bigger 
inner diameter than what was on the system.  Therefore, we changed over to 
said tubing (with all the components hooked in line) and the flow was good.  
We achieved a pressure reading of 45 PSI on a gauge (with the tubing open
ended through the nozzle) to confirm the status.  With the original tubing, 
we could only achieve ~35 PSI max.

Down force was also checked today.  It was 10 lbs low.  It was recalibrated.

The valving for the slurry/water was checked to assure now dilution was 
taking place.  This was checked due to the poor removal rate currently being
seen from the system.

The vacuum switch was erratic as well today.  This was changed out, tested,
adjusted, and retested.  A different style switch was installed per Tim D's
request.  It is now functioning as should.

Also, the tubing for slurry pumps #1 & 2 was changed out.  What a technicians
dream those old fashion pump heads are!  

                                               A shift
37.433Sv changedFABSIX::B_WESTPHALBradley BP#661 EXT# 6610Thu Jun 05 1997 20:377
CMP.C1 - Slurry SV22 was swapped out with a new part because it was leaking.
	 Slurry motor #1 is presently out of the tool.  The shaft is bent and 
	 will be replaced tomorrow.  Engineering requested That the shaft
	 height be set to .760.  This will be done in the morning.  Ran out of
	 time.