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ID:21535583
大小:3.60 MB
页数:52页
时间:2018-10-19
《焊线动画-wirebonding》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、WAFERMOUNTWAFERSAWDIEATTACHEPOXYCUREWIREBONDSemiconductorPackagingProcessMODINGIntegratedCircuit(IC)TRIM/FORMWAFERCONTENTSA.PURPOSEB.PRINCIPLEC.PROCESSD.PACKAGEINTODUCEE.M/CBASICDATAF.MATERIALG.PARAMETERH.DEFECTSI.REFERENCEA.PURPOSEFORMINGASTRONGANDRELIABL
2、EINTERTALLICBONDBETWWEENTHEWIREANDTHEPAD,ASWELLASBETWEENTHEWIREANDTHELEADDICEGOLDWIRELEADFRAMEA.PURPOSEpadleadGoldwireWedgeBond(2ndBond)BallBond(1stBond)B.PRINCIPLEHARDWELDING:PRESSUREAMPLIFY&FREQUENCYWELDINGTIMEWELDINGTEMPATURETHERMOSONICBONDING:THERMALCO
3、MPRESSUREULTRASONICENERGY(1.2MHZ)GLASSCONTAMINATIONVIBRATIONSiO2,TiN,TiWSiGOLDBALLPRESSUREMOISTUREAL2O3AlB.PRINCIPLEC.WIREBONDPROCESSpadleadFreeairballiscapturedinthechamferGOLDBALLFreeairballiscapturedinthechamferpadleadFreeairballiscapturedinthechamfe
4、rpadleadFreeairballiscapturedinthechamferpadleadFreeairballiscapturedinthechamferpadleadFormationofafirstbondpadleadFormationofafirstbondpadleadFormationofafirstbondpadleadheatPRESSUREUltraSonicVibrationFormationofafirstbondpadleadUltraSonicVibrationheat
5、PRESSURECapillaryrisestoloopheightpositionpadleadCapillaryrisestoloopheightpositionpadleadCapillaryrisestoloopheightpositionpadleadCapillaryrisestoloopheightpositionpadleadCapillaryrisestoloopheightpositionpadleadFormationofalooppadleadFormationofaloo
6、ppadleadpadleadpadleadpadleadpadleadpadleadpadleadpadleadpadleadpadleadpadleadpadleadpadleadpadleadpadleadpadleadpadleadFormationofasecondbondpadleadheatFormationofasecondbondpadleadheatheatpadleadheatheatpadleadheatheatpadleadpadleadpadleadpadleadpadleadp
7、adleadpadleadDisconnectionofthetailpadleadDisconnectionofthetailpadleadFormationofanewfreeairball
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