引线键合应用中的无偏倒技术_英文_.docx

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引线键合应用中的无偏倒技术_英文_

引线键合应用中的无偏倒技术HuiW ang DaveDeGrappo( Kulicke&SoffaIndustries2101BlairMillRoadWillowGrovePennsylvania19090USA)摘要:无偏倒技术(NoSWEEP)是引线成型工艺过程中防止引线偏倒或偏斜的一种工艺技术。该工艺技术包含独特的材料 、设备和工艺,提供了当前生产工艺便于实施的有效方法。关键词:引线键合;无偏倒技术;偏斜;应用中图分类号:TN305文献标识码:A文章编号:1004-4507(2003)05-0011-05NoSW EEPTechnologyforWirebondingApplicationsHuiW ang& DaveDeGrappoKulicke&SoffaIndustries2101BlairMillRoadWillowGrovePennsylvania19090USAAbstractNoSW EEPisatechnologytopreventwiresweepandorswayduringmoldingprocess.Thistechnologyincludesuniquematerialequipmentandprocesstoprovidecost-effectivemethodwhichcanbeeasilyimplementedoncurrentproductionprocess.K enywordsW irebondingNoSW EEP SwayApplication1 IntroductionToday'ssemiconductorindustrycontinuestodriveforlowcost/highperformancecomponents.Thechallengeistomaintainthecurrentpackagingtechnologycostswhileenhancingcomponentperformance.Continueddieshrinksandtighterwirebondingpitchallowsassemblerstoutilizecurrentpackagedesignswhilereducingfinishedpackageciststhroughdiedesign.Currentlywirebondpitchreaches40 micronswith30μ m indevelopmentand wirelengthscanbelongerthan300mils.Forthosefinepitchand/orlongwireapplicationitisverydifficultto收稿日期:2003-07-28processwithtraditionalmoldingmaterialandprocessesduetowiresweep/shortreducingincreasedyieldlossatmold.Althoughthereareotherpotentialsolutionstothemoldsweepproblemtheyareeithertoocostlyornotmatureenoughforlargevolumeproduction.NoSWEEPisanewtechnologyspeciallydevelopedforpreventingwiresweepand/orwireswayduringthemoldingprocess.Thisuniquetechnologyprovidesamaterialequipmentandprocesssolution.NoSW EEPencapsulantisanovelone-componentsilicafilledliquidproductdesignedforencapsulationoffinepitchwirebondsforlongwirelengthsonsemiconductordevices.ThismaterialcanbedispensedandUVcuredby usingauniquedesignedkitinstalleddirectlyonawirebondernlinewiththewirebondingprocesswithnoimpacttothewirebonderUPH.NoSWEEPcanalsobeprocessedon convent

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