| T.R | Title | User | Personal Name
 | Date | Lines | 
|---|
| 54.1 | heat xchanger primary | STRATA::FINN |  | Tue Sep 17 1996 19:34 | 9 | 
|  | 
	Changed pump and motor for heat exchanger primary table. 
	
	Dan Smith installed new V block.
	
						A shift
 | 
| 54.2 | BROKEN WAFER IN THE SPIN STATION. | STRATA::WESTPHAL |  | Thu Sep 19 1996 19:49 | 10 | 
|  | SCRUB.4 - Down for breaking wafers in the spin station.  The rep was in for the 
	  touch screen calibration on SCRUB.A1 so he looked at why we had some 
	  of the problems we've had with SCRUB.4.  He found that the spin
	  fingers needed to be turned on the shaft slightly.  He also adjusted
	  the spindle finger open sensor.  Both rollers in the inside brush
	  station were rotated clockwise about an 1/8 of an inch.  This allowed 
	  the wafer to enter the spin station in the center of the track.  He
	  also recommended that the bushings in belt rollers in send station be 
	  replaced.  This should remedy the loading problems we had in the
	  past.
 | 
| 54.3 | Shaft Height Adg / Having Difficulty Removing Pad | ASDG::POIRIER |  | Sat Sep 28 1996 19:17 | 9 | 
|  |     
    Shaft Height:
    ------------
    Brad in in the process of changing the shaft height per Tim Dyer's
    instructions. However, he is having trouble removing the polishing
    pad. The pad is shredding apart as it is being removed. Brad will
    will send out an updated message before he leaves.
    
                                                            C Shift.
 | 
| 54.4 | OB station roller motor / Send station | FABSIX::R_GEE |  | Tue Oct 15 1996 19:39 | 8 | 
|  | 	Wafers were not rotating in the outside brush station.
	Replaced the outside brush station roller motor, a.o.k.
	Wafers not exiting from the send station. Adjusted the 
	send station off-set up 200, ran verification wafers, all set.
						A shift
 | 
| 54.5 | Brushes Replaced | ASDG::POIRIER |  | Thu Jan 16 1997 19:10 | 7 | 
|  |     
     Brushes Replaced:
     ----------------
     The brushes on both the Inside Brush & Outside Brush Stations 
     were replaced today.
    
                                                            C Shift.
 | 
| 54.6 | Brushes changed | LUDWIG::WESTPHAL |  | Thu Jan 16 1997 19:52 | 3 | 
|  |     SCRUB4 - Brushes were changed as requested by engineering.  Particle
    check came in at -5 (18 large, 32 total - 13 large, 27 total).
    
 | 
| 54.7 | Black Empak cassettes can now be used | SUBPAC::TOOKER |  | Wed Jan 22 1997 15:43 | 5 | 
|  |     OnTrak field service installed the new top plates on the cassette
    receive station.  This will allow the use of the black Empak cassettes
    instead of the white cassettes.
    
    Jim T.
 | 
| 54.8 | O.B. Motor ERRORS | FABSIX::B_WESTPHAL |  | Thu Mar 06 1997 20:51 | 7 | 
|  | 
CMP-SCRUB.C1 - Down for errors for "outer brush roller motor speed out of
	 spec."  Tried to calibrate the board for the top motor first but 
	 the brush RPMs seems like it won't go over 36 RPMS.  Suspect that the 
	 motor may be bad.  Also Process Engineering requested that the brushes
	 be changed.  Ran out of time.
 | 
| 54.9 | Looks fine to me. | FABSIX::L_SHKOLNIKOV | No more experiments with freedom | Fri Mar 07 1997 07:19 | 7 | 
|  |            
       Outside brush station roller motor speed has been adjusted and
       all others have been brought back to spec. as well. All four 
       PVA brushes replaced per process engineering request. Run 25
       wafers to verify - no errors. Tool needs MQC.
         
                                                    Leon
 | 
| 54.10 | SENDER HANDLING PROBLEM | FABSIX::B_WESTPHAL |  | Thu Mar 20 1997 19:54 | 22 | 
|  | 
SCRUB.C1 - Down for handling problems in the send station.  The elevator 
	 would move down after the cassette was placed on the platform only
	 to move back up with out processing wafers.  Sometimes it would take
	 the first 1 or 2 wafer and then go back up w/o processing the rest of 
	 the boat.  Found that the wafers were only being sensed intermittently.
	 Because there was sometimes a wafer there that the machine did not 
	 recognize the elevator would continue to step down lifting the 
	 cassette off the cassette switch sending the elevator back up.
         Tried making several different adjustments to the wafer sensors but
	 this didn't work.  This tool had an upgrade done to it when it still 
	 belonged to the wet lab.  The upgrade has a black box that the 
	 original sensor and an extra wafer sensor plug into to combine the
	 2 signals.  When this box was bypassed to either sensor they both 
	 worked properly so this box seems to be the problem.  Received 
	 permission from engineering to remove the upgrade because there was 
	 no obvious advantage in having the extra sensor for our uses.  Made 
	 the appropriate adjustments, ran a boat of wafers w/ no errors.  The 
	 tool presently sets w/ only the rear wafer sensor hooked up like the 
	 rest of the scubbers.  The black box is on Jim Tooker's Desk.  
	 Returned the tool to production.
 | 
| 54.11 | WAFER SENSOR ADJUSTED | FABSIX::B_WESTPHAL |  | Fri Mar 21 1997 19:52 | 7 | 
|  | 
SCRUB.C1 - Down for not sensing the wafers properly.  The wafer sensor was
	 sensing the wafer to early.  Tweeked the sensor alittle and ran a boat
	 of wafers. The tool was returned to production and ran all day w/o any
	 errors.
 | 
| 54.12 | ob brush | LUDWIG::FINN |  | Tue Mar 25 1997 19:40 | 15 | 
|  | 
	Engineering requested OB station brushes changed. Only one in stock.
Shortage request submitted and checked with equipment eng at home. One brush 
up micrometer and brush height. 
New reading for top OB station is
	Front 320 Rear 360 
Ran test wafers aok.
Note: New spay manifold and flow meter not net installed. Ran out of time.
				         
						          A shift
 | 
| 54.13 | brush change | FABSIX::R_GEE |  | Tue Apr 08 1997 16:20 | 10 | 
|  | 	Replaced all 4 brushes.
		new brush heights
		IB station           OB station
		back =  390          back  = 400
	        front = 375          front = 335
			
 | 
| 54.14 | BAD MOTOR/ERRORS WHEN POWERING UP | FABSIX::B_WESTPHAL |  | Fri Apr 25 1997 17:23 | 12 | 
|  |     
SCRUB.C1-Down for an "inside upper brush motor out of spec." error.  The upper 
	 brush was not spinning. Switched the upper and lower brush motor 
         connectors and the bottom still worked and the top didn't so
      	 installed a new motor from stock.  The motor worked fine but the tool
	 immediately started alarming when the powered back on. This continues 
	 even though no alarm state exists, until it was through homing.  The
	 rep was here so I asked him about it but he did know what could cause
	 this either.  A boat of wafers was run with no errors so the tool was
	 returned to production.
         
 | 
| 54.15 | Bad Motor | FABSIX::B_WESTPHAL |  | Thu May 01 1997 19:34 | 5 | 
|  |     
CMP-SCRUB.C1 - Down for "outside upper brush motor speed out of spec".  The 
	motor was verified bad and replaced.  A half a boat of wafers were run 
	with no further problems.
 | 
| 54.16 | Water leak | FABSIX::L_SHKOLNIKOV |  | Fri May 02 1997 06:29 | 6 | 
|  |      The outside station rear shaft leak has been repaired.
     We replaced o ring on the shaft.
    
                                                 D - shift.
    
    
 | 
| 54.17 | Brush heights wrong, apparent spin station crash | SUBPAC::BJUBINVILLE | CMP Equipment Engineering | Wed May 07 1997 20:28 | 16 | 
|  |   From COMMENTS on WW45 weekly PM:
    
    
  6.1.8  Check scrub brush height in both modules	Completed: * BJ *   
                                 OB      IB
                                ----    ----
               were at:   Front 335      390
                          Rear  400      440
                                            
               now back   Front 335      375
               at:        Rear  400      390
                                                  
      * alot of wafer debris found in the spin station.  It was
        was definetly an un-document crash in the spin station.
        All of the wafer pieces were removed and spin are cleaned.
 | 
| 54.18 | screen problem | FABSIX::J_SADIN | Freedom isn't free. | Mon Jun 02 1997 19:00 | 7 | 
|  |     
    	screen wouldn't come back after reboot. Found breaker tripped.
    reset and everything ok.
    
    
    	a-shift
    
 |