10~WAFER MOUNT~Provide support for handling~BROKEN WAFER~ELECTRICAL FAILURE~~6~~FOREIGN PARTICLE OR RESIDUE LEAVE
ON CHUCK SURFACE~2~~CHUCK AND SILK SCREEN CONDITION CHECK
SHIFTLY~3~36~~~~~~~~~
10~WAFER MOUNT~Provide support for handling~MIXED WAFER~ELECTRICAL FAILURE~~6~~MORE THAN ONE WAFER LOT AT
ONE TIME~3~~MATERIAL VISUAL INSPECTION~8~144~SYSTEM MONITORING IMPLEMENTATION~W.WILIAMS 2015-04-11~SYSTEM WAS IMPLEMENTED~6~3~2~36~~
20~WAFER SAW~Die cutting~CRACKED DIE~ELECTRICAL FAILURE AT
FINAL TEST /CUSTOMER~~8~~BROKEN / DAMAGE / WORN OUT BLADE~2~BLADE HUB CONDITIONING CHECK~MONITORING FOR CHIP & CRACK DIE AFTER
WASH PROCESS~8~128~~~~~~~~~
20~WAFER SAW~Die cutting~SCRATCHED DIE~ELECTRICAL FAILURE AT
FINAL TEST /CUSTOMER~~8~~ABRASION AGAINST SAW CHUCK DURING
FIRST CUT~~COVER SAW CHUCK WITH SILK SCREEN~VISUAL INSPECTION~8~~~~~~~~~~
25~HANDLING~No damages during transport~WAFER DAMAGES~ELECTRICAL FAILURE~~6~~IMPROPER HANDLING~1~OPERATOR TRAINING~SCREENING~4~24~~~~~~~~~
30~WASHER~Proper washing process~MIXED WAFER~ELECTRICAL FAILURE AT
FINAL TEST /CUSTOMER~~8~~SHARING WASHER~2~WRITE SAW NUMBER ON MYLAR BEFORE SENDING TO
WASHER~VERIFY TOTAL WAFER NUMBER / DEVICE /
WAFER LOT NBR ON MYLAR AGAINST SHOP
ORDER~7~112~~~~~~~~~
40~DIE, CLIP BOND, REFLOW~Proper connection~INCONSISTENT SOLDER~ELECTRICAL FAILURE AT
FINAL TEST~~8~~INCONSISTENT SOLDER VOLUME DUE TO
DISPENSING DIE AND GROOVE AT THE
SAME TIME~2~SEPARATE DISPENSING FOR DIE AND GROOVE~VISION INSPECTION SYSTEM AT SOLDER
DISPENSING~4~64~~~~~~~~~
40~DIE, CLIP BOND, REFLOW~Proper connection~NO SOLDER~ELECTRICAL FAILURE AT
FINAL TEST~~8~~SET-UP AFTER DISPENSER CLEANING NOT
DONE PROPERLY~1~TO PERFORM SET UP USING DUMMY STRIPS~VISION INSPECTION SYSTEM AT SOLDER
DISPENSING~4~32~~~~~~~~~
45~INSPECTION~Detection of nonconformity~OPERATOR DID NOT CATCH A FAILURE~COMPONENT MALFUNCTION AT CUSTOMER~~8~~LACK OF KNOWLEDGE~3~OPERATOR TRAINING~VISUAL INSPECTION~8~192~ADDITIONAL OPERATORS TRAINING AT OUTSIDE COMPANY~W.WILIAMS 2015-04-13~~~~~~~
50~MOLD~Environmental protection~RESIN BLEED / FLASH~VISUAL DEFECT~~6~~CLAMP PRESSURE / FORCE TOO LOW~2~CLAMP PRESSURE MONITORING~VISUAL INSPECTION~8~96~~~~~~~~~
50~MOLD~Environmental protection~ROUGH SURFACE~VISUAL DEFECT/ ILLEGIBLE
MARKING~~5~~SOLDER FLUX~3~PERIODIC MOLD CLEANNING~VISUAL INSPECTION~8~120~~~~~~~~~
60~TRIM AND FORM~Cutting parts from leadframe~LEAD DEFECT~VISUAL FAILURE~~6~~FOREIGN MATERIAL AND INCOMPLETE
FILL~2~AIR GUN THE DIE SET BEFORE START NEW LOT~VISION CHECK AT INPUT TO MACHINE~4~48~~~~~~~~~
60~TRIM AND FORM~Cutting parts from leadframe~INCOMPLETE CUT~VISUAL FAILURE~~7~~BROKEN PUNCH~3~INCOMPLETE CUT SENSOR (TFX-3A ONLY)~VISUAL INSPECTION~8~168~~~~~~~~~
