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AMAT 5500 TXZ Before
BEFORE		 Foamtec Logo AMAT 5500 TXZ After
AFTER

Vacuum Chamber PM Technique
AMAT 5500 TXZ Chamber Super Clean

OBJECTIVE:

TO PM THE AMAT 5500 TXZ CHAMBER IN AN EFFECTIVE AND TIMELY MANNER, WHILE IMPROVING PARTICLE PERFORMANCE, TOOL RECOVERY AND MAXIMIZE TOOL UPTIME

Vacuum Chamber: AMAT
Vacuum Chamber Process Residue: TDMAT PROCESS DEPOSITION
Vacuum Chamber Components: CHAMBER, CHAMBER WALLS, VIEW PORT, PUMP PORT . . . .

Old Procedure: SiC pads, IPA and wipers (at times H2O2) (This current method uses an abundance of SiC pads and Alpha 10 wipes)
Solvent IPA

DANGER:

USE OF H2O2 CAUSES A VARIETY OF ENVIRONMENTAL, HEALTH, AND SAFETY CONCERNS. CAN CAUSE PROLONGED PUMP DOWN TIMES AND HIGH VOLTAGE ARCING. BREATHING APPARATUS AND FULL ACID PPE IS RECOMMENDED WHILE SCRUBBING WITH H2O2. SCRUBBING PHOSPHORUS WHILE USING H2O2 INCREASES THE RISK OF FIRES AND/OR THE RELEASE OF HAZARDOUS CHEMICAL FUMES, POTENTIALLY RESULTING IN PERSONAL INJURY AND PROPERTY DAMAGE

Vacuum Chamber Products:
  • (1) HT4754 UltraSOLV® Sponge
  • (1) HT4536D-10-1 360 Grit Diamond ScrubPAD
  • (2) HT4580D-10-1 800 Grit Diamond ScrubPAD
  • (1) HT179080 800 Grit Diamond ScrubTIP®
  • (1) HT5790S-25 MiraWIPES®
  • (1) HT1790 UltraSOLV® Swabs
 

AMAT 5500 TXZ Chamber Super Clean PM Procedure:

View “How to” instructional videos on http://www.foamtecintlwcc.com/video/

NOTE:
INITIAL CLEAN MAY REQUIRE THE USE OF ADDITIONAL PRODUCTS TO EFFECTIVELY CLEAN CHAMBER BACK TO BARE METAL. IT IS RECOMMENDED TO PERFORM A ROUND OF 2-3 PM’S ON SAME TOOL TO ESTABLISH SUFFICIENT DATA FOR EVALUATION
Step 1:
Using all safety procedures and guidelines, remove the parts that are required to be removed from within the TxZ Chamber to complete the Super Clean PM
Step 2:
Properly stage Foamtec TxZ Super Clean Kit with HazMat bag readily available (See Fig 1)

Fig 1: Products used for TxZ Super Clean
 TxZ Super Clean products
Step 3:
Lightly dampen the HT4580D-10-1 800 Grit Diamond ScrubPAD with IPA and scrub an approximate 9”x 9” area within the TxZ Chamber (See Fig 2 & 3)

Lightly dampen ScrubPAD

Fig 2: Lightly dampen 800 Grit ScrubPAD w/IPA

Fig 3: Scrub an approximately 9” X 9” area

 Scrub 9" X 9" area
Step 4:
Lightly moisten the HT4754 UltraSOLV® Sponge with IPA and proceed to wipe the chamber area where the deposition had been removed by 800 Grit Diamond ScrubPAD (See Fig 4)

Fig 4: Wipe deposition with UltraSOLV® Sponge
 Continue wiping with UltraSOLV sponge
Step 5:
Continue to scrub remaining areas of TxZ Chamber using same technique described in steps 2 & 3
Step 6:
For the heavier built up areas, such as pump ports and edges of chamber seal may need to use the HT4536D-10-1 360 Grit Diamond ScrubPAD to effectively remove deposition (See Fig 5 & 6)

Heavy build-up in pump port

Fig 5: Heavy deposition build-up within pump port

Fig 6: Heavy deposition easily removed with 360 Grit Diamond ScrubPAD

 Build-up easily removed with ScrubPAD
Step 7:
As necessary, unload Diamond ScrubPADS of deposition by wiping the ScrubPADS with HT4754 UltraSOLV® Sponge in one direction (See Fig 7, 8 & 9)

ScrubPAD loaded with deposition

Fig 7: ScrubPAD loaded with deposition

 Pull ScrubPAD across sponge

Fig 8: Pull ScrubPAD across UltraSOLV® Sponge

 Unloaded ScrubPAD

Fig 9: Unloaded ScrubPAD
Step 8:
Unload the HT4754 UltraSOLV® Sponge by moistening with DI water and ringing out into a properly labeled HazMat container (See Fig 10 & 11)

Loaded UltraSOLV Sponge

Fig 10: Loaded-up UltraSOLV® Sponge

 UltraSOLV after rinse

Fig 11: UltraSOLV® Sponge AFTER rinse
Step 9:
In order to remove deposition from remaining hard to reach areas (such as view port & slit valve), use the HT179080D 800 Grit Diamond ScrubTIP® to effectively reach these areas (See Fig 12) Unload ScrubTIP® as necessary using same method as described above

Fig 12: 800 Grit Diamond ScrubTIP® used to effectively clean view port
 800 Grit Diamond ScrubTIP effectively cleaning view port

FINAL WIPE PROCEDURE:


IMPORTANT NOTE

THIS IMPORTANT STEP MUST BE EFFECTIVELY FOLLOWED IN ORDER TO ACHIEVE THE MAXIMUM EFFICIENCY OF TOOL RECOVERY AND PERFORMANCE. CONTINUE TO WIPE ALL OF THE EFFECTED PM AREAS WITHIN THE TXZ CHAMBER REPEATEDLY UNTIL ALL MIRAWIPES® AND ULTRASOLV® SWABS NO LONGER REMOVE ANY MORE DEPOSITION


Figure below shows how much more deposition the Foamtec International MiraWIPE® can remove from a critical surface compared to the standard fab wiper, making the MiraWIPE® FINAL WIPE PROCEDURE the most CRITICAL STEP of the PM procedure (See Fig 13a & 13b)

Fig 13a: Current fab wiper after completely AMAT TxZ
MiraWIPES are more effective
Fig 13b: Particles picked up using HT5790S MiraWIPES® after completely wiping with current fab wiper

MiraWIPES® are the KEY STEP for DEFECT REDUCTION and IMPROVED TOOL RECOVERY

Step 10:
Using 100% IPA, dampen the HT5790S MiraWIPES® along with the HT1790 UltraSOLV® Swabs and perform a THOROUGH AND EFFECTIVE FINAL WIPE-DOWN of the TxZ Chamber, chamber lid, o’ring grooves and all sealing surfaces.
Step 11:
Ensure to wipe down all spare parts placed back into the TxZ Chamber using additional IPA dampened HT5790S MiraWIPES®