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1、ASMCMLT Ball Size & Gold Remain Issue- Smaller capillary CDATS WB Process ASMuDie source : Chi-Mei 14 x 17mil chipuPad Opening : P Pad 94um, N Pad 92umuBonding Method : BSOB 2 wiresuDevice : 3020 18 columns x 8 rows uBall shear spec : 42guBall size spec : Max 85umuGold remain spec : 50% uGold Wire :
2、 K&S AW99 1mil (EL 2-7% BL 9g)uCapillary : GAISER 1551-13-437GM 65(6x120D-8D-10) (CD:2.5mil (63.5um) Tip:6.5mil Hole:1.3mil)Material Background & Spec P PadN PadASMuMachine type : Harrier S/N TE019-052uSoftware version:Machine Name : HarrierSystem Version10.01.33 rev 8SiteGenericPR7.12 Rev 9BQM 1.06
3、 (1.13)WH4.76Servo (Z)1.42Servo (XY)1.26Heater30ABonder5.25Date/TimeTue Jun 6 16:03:22 2006 ref:64.07Material BackgroundASMParameter SettingScrub only applied to P PadASMDatauP Pad ball size & thicknessuP Pad Ball Shear (g)uN Pad ball size & thicknessuN Pad Ball Shear (g)ASMResult photoBest P PadBes
4、t P PadBest N PadBest N PadWorst P PadWorst P PadWorst N PadWorst N PadASMAfter Shear Gold Remain100%P padP padP padP padN padN padN padN pad70%90%80%ASMSummary ResultuWith smaller CD capillary, smaller ball size can be achievedEnhancer F2 increased to 28 (was 20)Scrub T1 & Amplitude also increased uBoth P & N pads able to achieve 50% gold remain
