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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

43.0. "CMP.D1 PROCESS DATA/PD" by STRATA::TDYER () Tue May 06 1997 09:34

    THIS NOTE IS FOR PROCESS ENGINEERING DATA/PASSDOWNS
    
T.RTitleUserPersonal
Name
DateLines
43.1WCMP METALS TESTSSUBPAC::DANOCONNORWed May 07 1997 12:2448
Auriga Testing 5/5/97 - 5/6/97

Single Head testing (Carrier 1 only)

Modified Oxide Polish Process:
      Table:     45 rpm
      Flow:     550/550
      Carrier:   13 rpm
      Pressure: 100 lbs

Pre Citric Treatment
      Preflow: 999 / 25 sec
      Polish:  750 / 30 sec / 100 lbs
      Rinse:   999 / 20 sec / 80 lbs
      Preflow: 999/999 / 20 sec / 80 lbs

Post Citric Treatment
      Post Flow: 999 / 15 sec / 100 lbs
      Polish	750 / 17 sec / 100 lbs

SCRUB = SCRUB ON SPEEDFAM WITH CITRIC VS. NO SCRUB ON SPEEDFAM

Run Information
---------------

Run #	Recipe		Wafer	PreCit	PostCit	Scrub	Particles
WCMP RECIPE ON SCRUBBER WITH CITRIC ON BRUSHES
1      	Int_FPM		M8382M2	N	N	Y	248/668/48/0
2      	Int_C_Pre	M9382L2	Y	N	Y	345/884/80/6.17
3      	Int_C_Pst	M8383D2	N	Y	Y	375/984/71/0
4      	C_Pre_Pst	M0382V2	Y	Y	Y	399/1056/91/0
5      	FPM_No_Sc	M048442	N	N	N	364/849/91/0
6      	Pre_C_Nsc	MP381P2	Y	N	N	329/850/96/0
7      	Pst_C_Nsc	MM38472	N	Y	N	381/1022/100/1.02
8      	Pr_Pst_Ns	MA384J2	Y	Y	N	398/1018/83/4.13
DRY PROGRAM ON SCRUBBER USED
9      	Pr_Pst_Ns	MR38202	Y	Y	N	2157/7420/421/34.5
10      Pst_C_Nsc	MR38432	N	Y	N	1510/3765/272/10.8
11      Pre_C_Nsc	MR383U2	Y	N	N	MAXED
12      FPM_No_Sc	MY382X2	N	N	N	MAXED
13     	C_Pre_Pst	MZ381E2	Y	Y	Y	1035/2214/133/5.42
14      Int_C_Pst	MZ383D2	N	Y	Y	1115/2556/187/2.18
15    	Int_C_Pre	MU38402	Y	N	N	2218/6158/586/11.6
16	PARTICLE MONITOR 12K - SCRUB ONLY		5/56/0/0



43.2Citric Testing Initial Results Fe onlySUBPAC::DANOCONNORWed May 14 1997 11:4755
              <<< ASDG::DISK$SYS_DATA:[NOTES$LIBRARY]CMP.NOTE;1 >>>
                                    -< CMP >-
================================================================================
Note 43.1                    CMP.D1 PROCESS DATA/PD                       1 of 1
SUBPAC::DANOCONNOR                                   48 lines   7-MAY-1997 11:24
                             -< WCMP METALS TESTS >-
--------------------------------------------------------------------------------

Auriga Testing 5/5/97 - 5/6/97

Single Head testing (Carrier 1 only)

Modified Oxide Polish Process:
      Table:     45 rpm
      Flow:     550/550
      Carrier:   13 rpm
      Pressure: 100 lbs

Pre Citric Treatment
      Preflow: 999 / 25 sec
      Polish:  750 / 30 sec / 100 lbs
      Rinse:   999 / 20 sec / 80 lbs
      Preflow: 999/999 / 20 sec / 80 lbs

Post Citric Treatment
      Post Flow: 999 / 15 sec / 100 lbs
      Polish	750 / 17 sec / 100 lbs

SCRUB = SCRUB ON SPEEDFAM WITH CITRIC VS. NO SCRUB ON SPEEDFAM

Run Information
---------------

Run #	Recipe		Wafer	PreCit	PostCit	Scrub	Fe	Particles
WCMP RECIPE ON SCRUBBER WITH CITRIC ON BRUSHES
1      	Int_FPM		M8382M2	N	N	Y	88	248/668/48/0
2      	Int_C_Pre	M9382L2	Y	N	Y	91	345/884/80/6.17
3      	Int_C_Pst	M8383D2	N	Y	Y	16	375/984/71/0
4      	C_Pre_Pst	M0382V2	Y	Y	Y	17	399/1056/91/0
5      	FPM_No_Sc	M048442	N	N	N	115	364/849/91/0
6      	Pre_C_Nsc	MP381P2	Y	N	N	124	329/850/96/0
7      	Pst_C_Nsc	MM38472	N	Y	N	60	381/1022/100/1.02
8      	Pr_Pst_Ns	MA384J2	Y	Y	N	82	398/1018/83/4.13
DRY PROGRAM ON SCRUBBER USED
9      	Pr_Pst_Ns	MR38202	Y	Y	N	9750	2157/7420/421/34.5
10      Pst_C_Nsc	MR38432	N	Y	N	1600	1510/3765/272/10.8
11      Pre_C_Nsc	MR383U2	Y	N	N	1300	MAXED
12      FPM_No_Sc	MY382X2	N	N	N	22400	MAXED
13     	C_Pre_Pst	MZ381E2	Y	Y	Y	980	1035/2214/133/5.42
14      Int_C_Pst	MZ383D2	N	Y	Y	1870	1115/2556/187/2.18
15    	Int_C_Pre	MU38402	Y	N	N	24500	2218/6158/586/11.6
16	PARTICLE MONITOR 12K - SCRUB ONLY		42	5/56/0/0



43.3Revised Auriga Citric Testing Results 5/14/97SUBPAC::DANOCONNORWed May 14 1997 12:4296
Run Information
---------------

When Using Citric (1%) on the Ontrak Scrubber
 - Citric (1%) on the table before polishing does not significantly reduce iron  
   contamination levels.
 - Citric (1%) on the table after the oxide buff process does significantly      
   reduce the iron contamination levels.
 - The 11 sec Speedfam scrub process (with 1% citric) does significantly reduce  
   the iron contamination levels.
 - The speedfam scrub system does not reduce final defectivity levels.  

When using the Dry Program on the Ontrak Scrubber
 - Citric (1%) on the table before polishing does not significantly reduce iron  
   contamination levels.
 - Citric (1%) on the table after the oxide buff process does significantly      
   reduce the iron contamination levels when the Speedfam scrub is used.
 - The 11 sec Speedfam scrub process (with 1% citric) does significantly reduce  
   the iron contamination levels. An order of magnitude reduction in             
   contamination level is seen. 

Relatively high levels of Ar were seen on nearly all samples (Including across 
the Speedfam scrub split) The source could be the speedfam process itself (first 
speedfam results) or the Met202 material.

We have demonstrated the ability to reduce Fe contamination levels to below 
1.6E11/cm2 which is much lower than that reported in the industry. (Other than 
HF dip use)

We can now work to reduce the impact on the systems and troughput and minimize 
chemical usage and defectivity.
 
Based upon these results I would prioritize the following testing:

1) Speedfam scrub station optimization : Time / Citric Flow as variables

2) Post oxide buff Citric addition

3) OnTrak Scrub station : Citric / NH4OH usage 
   (Per Speedfam & Sematech we should maintain lower defectivity levels if NH4OH 
    were used rather than Citric) 


Auriga Testing 5/5/97 - 5/6/97

Single Head testing (Carrier 1 only)

Modified Oxide Polish Process:
      Table:     45 rpm
      Flow:     550/550
      Carrier:   13 rpm
      Pressure: 100 lbs

Pre Citric Treatment
      Preflow: 999 / 25 sec
      Polish:  750 / 30 sec / 100 lbs
      Rinse:   999 / 20 sec / 80 lbs
      Preflow: 999/999 / 20 sec / 80 lbs

Post Citric Treatment
      Post Flow: 999 / 15 sec / 100 lbs
      Polish	750 / 17 sec / 100 lbs

SCRUB = SCRUB ON SPEEDFAM WITH CITRIC VS. NO SCRUB ON SPEEDFAM



Run #	Recipe		Wafer	PreCit	PostCit	Scrub	Fe	Particles
WCMP RECIPE ON SCRUBBER WITH CITRIC ON BRUSHES
1      	Int_FPM		M8382M2	N	N	Y	88	248/668/48/0
2      	Int_C_Pre	M9382L2	Y	N	Y	91	345/884/80/6.17
3      	Int_C_Pst	M8383D2	N	Y	Y	16	375/984/71/0
4      	C_Pre_Pst	M0382V2	Y	Y	Y	17	399/1056/91/0
5      	FPM_No_Sc	M048442	N	N	N	115	364/849/91/0
6      	Pre_C_Nsc	MP381P2	Y	N	N	124	329/850/96/0
7      	Pst_C_Nsc	MM38472	N	Y	N	60	
381/1022/100/1.02
8      	Pr_Pst_Ns	MA384J2	Y	Y	N	82	398/1018/83/4.13
DRY PROGRAM ON SCRUBBER USED
9      	Pr_Pst_Ns	MR38202	Y	Y	N	9750	
2157/7420/421/34.5
10      Pst_C_Nsc	MR38432	N	Y	N	16000	
1510/3765/272/10.8
11      Pre_C_Nsc	MR383U2	Y	N	N	13000	MAXED
12      FPM_No_Sc	MY382X2	N	N	N	22400	MAXED
13     	C_Pre_Pst	MZ381E2	Y	Y	Y	980	
1035/2214/133/5.42
14      Int_C_Pst	MZ383D2	N	Y	Y	1870	
1115/2556/187/2.18
15    	Int_C_Pre	MU38402	Y	N	N	24500	
2218/6158/586/11.6
16	PARTICLE MONITOR 12K - SCRUB ONLY		42	5/56/0/0




43.4CABOT SLURRY PHASE 1SUBPAC::DAWSONMon May 19 1997 11:5753
Subj:	Cabot WA400(Alumina 6%) / Fe400(oxidizer 10%)


PHASE 1:
- Strip the Westech and install new pads and carrier(DF200)...DONE

- Drain both slurry tanks.  CLOSE supply and return lines to the Auriga so
  we don't have to fill that volume with slurry.....DONE

- Fill Oxide tank with SC112....DONE

- Mix ~1L of Cabot slurry 1:1 (WA400-3%:Fe400-5%).  dump into W slurry tank and 
  circulate through lines and dump slurry....DONE
		
	LITER WOULD NOT PUMP OUT OF LINES.

- Mix ~8L of slurry 1:1 and put in W slurry tank.....DONE
                 
	4 LITERS OF  W400 / 4 LITERS OF Fe400, APPX ~9 LITERS

- Process 4-5 dummy wafers on primary platen followed by 1um W monitor and
  12kA oxide wafer for 2 min. Record removal rate and uniformity....DONE

	CONDITION = 3/W WAFERS/175ML ALL 3 PHASES FOR 30 SEC 37/61/5.1
                    1/W WAFER 60  SEC 1UM/12K FOR 120 SEC 175ML 37/61/5.1
                    W/RR = 4201/2100� MIN 21.78% UNF.
                    OX/RR= 37/18� MIN R=70 STD = 16�
		    SELECTIVITY = 117�
 
- Process 4-5 dummy wafers on secondary pad followed by 1 12kA for 2 min to 
  check removal rate/ uniformity, and particles....DONE

	CONDITION = OX WAFERS/ 250ML PHASE 1 190ML PHASE 2 FOR 60 SEC 
		    3/OX WAFERS 60 SEC 2/OX WAFERS FOR 2 MIN
		    OX RR = 2094/1047� MIN 308� STD  
		    PARTICLES DELTA = 96-123-0 (9500 RECIPE) 
		    WCMP RECIPE USED ON SCRUBBER

- Process 1 5.7kA wafer through FPM for particles.....DONE  
        CONDITION = 5700� W/WAFER 175ML 37/61/5.1 30 SEC OX/BUFF
		     PARTICLE DELTA = 190-588-0 (8000� URECIPE)
	             WCMP RECIPE USED ON SCRUBBER  

- If particles are exceptional and selectivity very good process a contact 
  patterned wafer from YD0161 through the FPM flow and save for AFM/SEM...DONE

        CONDITION = 4 MIN TO CLEAR 30 SEC OX BUFF/WCMP SCRUBBER RECIPE USED

- Run more wafers and check removal rate/ uniformity on primary platen at the
  end of the slurry batch.....DONE...4654/2326 RR 25.7% UNF.
	
	**** NO CITRIC WAS USED TO CLEAN ANY OF THE WAFERS. ****

43.4Speedfam MQC checks 5/28/97SUBPAC::DANOCONNORWed May 28 1997 17:5514
Speedfam Results 5/28/97

Carrier Position	180 mm		188 mm
      1			2260/4.7	2569/13.8
      2			2269/8.2	2565/15.8
      3			2318/5.1	2769/17.7
      4			2266/4.6	2568/12.7
      5			2271/7.0	2667/17.7

The Pad was pulled after the runs due to creases.

/Dan


43.5Panw mqc results 5/29/97SUBPAC::DAWSONThu May 29 1997 16:2236
 - 10 W/monitors ran to clear for breakin ~120sec
 - New distrubution cup (ie. madonna), so/so slurry flow looks fine, during wet
   mode and flush of slurry lines water splashes up onto multihead, to much di
   flow I'll assume
 - Secondary table recipe changed to land at 107lbs & also polish at 107.
 - Vibration still noticed during 107df/ slow carrier sp/37 table did
   not vibrate (sp?) during 80df 90 carrier sp.
 - 1% citric used on scrub.c1, only fpm monitors and 2nd table mqc's got this.
 - wafers pst measured at 180mm
 - ~6 carrier screws needed to be retighten w/lock tight after mqc run.
 - All mqc data entered into workstream  
 - scrubber brushes changed 
 - pad changed to a "u" style

 Second Table  Particle Delta  12k recipe /  2nd Table rr 
1. 36-248-0   scrubber (.d1) imprint        1. 717	7.25
2. 16-103-0   No imprint                    2. 666	11.7
3. 18-121-0   scubber imprint               3. 687	14.5
4- 7-49-0     No imprint                    4. 703	7.54
5- 23-182-0   Imprint                       5. 615	13.9
                                          avg 678/ rng 102  avg 10.789/ rg 7.25
 FPM Particle Delta     8k recipe      	   W/rr/min	unf	rnge	
1. 213-705-0  scrubber (.d1) imprint     1. 2035	5.06	888
2. 187-588-0  "			   "	 2. 1938	6.79	1018
3. 195-547-0  "		           "     3. 2047	7.03	1294
4. 207-533-0  No imprint                 4. 1963	6.22	903
5. 229-687-0  "			   "     5. 2052	8.22	1577
                                     avg =  2007        6.66    1136
                                        rr/range = 114�   unf.rnge = 3.16
W/Ox/rr  unf
1. 38	12�	
2. 43	25
3. 37	13
4. 37	18
5. 48   34	selectivity = 51.9/1
 
43.6PANU MQC DATASUBPAC::DAWSONFri May 30 1997 17:1434
 - ~2 hours lost due to wafer detection system cal's
 - Pad conditioned 2x
 - 10 W/monitors ran to clear for breakin ~120sec
 - New distrubution cup (ie. madonna), so/so slurry flow looks fine, during wet
   mode and flush of slurry lines water splashes up onto multihead, to much di
   flow I'll assume
 - Secondary table recipe changed to land at 107lbs & also polish at 107.
 - Vibration still noticed during 107df/ slow carrier sp/37 table did
   not vibrate (sp?) during 80df 90 carrier sp.
 - 1% citric used on scrub.c1, only fpm monitors and 2nd table mqc's got this.
 - w/rr monitors pst measured at 180mm, more edge removal noticed on the panU.
 - All mqc data entered into workstream  
   w/rr		unf	rng			w/ox/rr		unf.
1. 2673 	2.99	790			1. 28		na
2. 2726 	13.1	2430			2. 33		na
3. 2696		3.08	742			3. 39		na
4. 2638		4.07	804			4. 31		na
5. 2732		8.65	1908			5. 32		na
avg=2693/rg=94   avg=6.38 rng=10.11  	   avg = 32  rng = 11  sel = 84-1
 Sec Delta 12k         rr 	unf.
1. 63-184-0        1. 673	11.7
2. 43-151-0        2. 632	16.1
3. 10-51-0         3. 687	23.1
4- 23-157-0        4. 649 	9.5
5- 15-51-0         5. 559	23.7
                avg = 659 rng = 146

 FPM Delta 8k      
1. 41-156-0  	
2. 31-103-0	
3. 98-322-0	
4. 207-645-0	
5. 261-764-0
                                                    
43.7PD CMP.D1 5/30/97SUBPAC::DAWSONFri May 30 1997 17:208
    
    	Auriga / CMP.D1 has a PANU pad installed on it. Mqc's were run and
    posted in notes and also in workstream. Scrub station brushes were
    changed on 5/29. Tool still having isssues w/wafer loss detection
    system.
    
    
    /WCMP
43.8PANU TESTING 6/2/97SUBPAC::DAWSONMon Jun 02 1997 17:3943
      Monday 6/2/97
 - DF. calibration caheck out aok.
 - Check out two carrier that had the worse unf. from fridays mqc's.
   They were weel w/in spec 5.5 - 6.0. 
 - Ran Mqc again on PanU style pad.
 - Slighty vibration on 1 st set of break'in wafers.
 _ Pad notice to have small creases in it. Looks like the pad is starting to 
   delaminate. This situation was notice 2x so far. 
 - Ran 5 w/monitors 5/w mqc wafers 5/ox monitors
      Result = 	3410/1705 5.0...180 mm	ox mon. 505/252 
      		3305/1652 7.5		        134/67
      		3471/1735 8.37			 55/27
      		3380/1690 7.27			 98/49
      		3542/1771 10.85			342/171
      avg=1711/119	7.8/5.87	   avg= 111/rng= 225	

 - 10 more ox monitors 5w monitors and W mqc performed again.
 - 85 wafers on the pad
 - All data entered into workstream. 
 - All wafers in both runs ran on P_2min_mqc
 - Results = 	4706/2353	5.44	
      		4533/2266	7.65	
      		4763/2383	7.6
      		4498/2249	6.39
      		4592/2296	6.39
      avg=	2410/137 range	7.37/4.46 range

 - Pad to be marathoned for longevity. 20 more liters of slurry mixed A mix
   of ox/w wafer will run (ie w - ox - w - ox...). Mqc (w/rr & selt.) will be 
   checked at the end of each 50 wafers.
 - 1 Error "wafer sensor" ajustment made by Bredin, senor went off during
   a 1 wafer run.
 - 1 Wafer test 1365w/rr 9.2% unf.	
 - Results =	5370/2685	5.62    34 = ox/rr
      		5155/2577	7.38	30
      		5454/2727	8.33	35
      		5222/2611	4.8	28
      		5407/2703	7.33	32		
      avg = 	 2661/rng150�   6.69/3.53 range	 32� rr/ox  sel = 83-1
 
 - 40 More liters of slurry made, and 50 more ox/w wafers ran.
 - Results of second set to be reveiwed in the am.
 
43.9PANU MQC INFO. 6/2-6/3SUBPAC::DAWSONWed Jun 04 1997 08:0764
      Monday 6/2/97
 - DF. calibration caheck out aok.
 - Check out two carrier that had the worse unf. from fridays mqc's.
   They were weel w/in spec 5.5 - 6.0. 
 - Ran Mqc again on PanU style pad.
 - Slighty vibration on 1 st set of break'in wafers.
 _ Pad notice to have small creases in it. Looks like the pad is starting to 
   delaminate. This situation was notice 2x so far. 
 - Ran 5 w/monitors 5/w mqc wafers 5/ox monitors
      Result = 	3410/1705 5.0...180 mm	ox mon. 505/252 
      		3305/1652 7.5		        134/67
      		3471/1735 8.37			 55/27
      		3380/1690 7.27			 98/49
      		3542/1771 10.85			342/171
      avg=1711/119	7.8/5.87	   avg= 111/rng= 225	

 - 10 more ox monitors 5w monitors and W mqc performed again.
 - 85 wafers on the pad
 - All data entered into workstream. 
 - All wafers in both runs ran on P_2min_mqc
 - Results = 	4706/2353	5.44	
      		4533/2266	7.65	
      		4763/2383	7.6
      		4498/2249	6.39
      		4592/2296	6.39
      avg=	2410/137 range	7.37/4.46 range

 - Pad to be marathoned for longevity. 20 more liters of slurry mixed A mix
   of ox/w wafer will run (ie w - ox - w - ox...). Mqc (w/rr & selt.) will be 
   checked at the end of each 50 wafers.
 - 1 Error "wafer sensor" ajustment made by Bredin, senor went off during
   a 1 wafer run.
 - 1 Wafer test 1365w/rr 9.2% unf.	
 - Results =	5370/2685	5.62    34 = ox/rr
      		5155/2577	7.38	30
      		5454/2727	8.33	35
      		5222/2611	4.8	28
      		5407/2703	7.33	32		
      avg = 	 2661/rng150�   6.69/3.53 range	 32� rr/ox  sel = 83-1
 
 - 40 More liters of slurry made, and 50 more ox/w wafers ran.
 - Results of second set to be reveiwed in the am.
 
---------------------
 	Tuseday	6/3/97
 - Results combined  187 wafer on the pad.
  ox /rr	w/rr	w/unf.
 1. 30		2496	7.23
 2. 28		2436	8.84
 3. 30		2542	8.57	
 4. 31		2441	6.10
 5. 29		2488	8.46
 avg=29	      2478/107 7.84/2.27   sel ...85-1

 - 50 W/wafers ran for 240 seconds then checked w/rr and selecltivity.
  ox/rr		w/rr	w/unf.
 1. 28		1903	26.6
 2. 24		2024	14.6
 3. 32		2066	12.8
 4. 26		2060	11.1 	  
 5. 30		2100	13.9
avg= 28/rg 6	2030/197  15.8/ 15.5
 
	242 wafers on this pad