Wire Bonding Quality Assurance.pdf

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1、WireBondingWireBondingQualityAssuranceWireBondingQualityAssuranceQualityAssuranceandQualityAssuranceandandTestingandTestingTestingMethodsTestingMethodsVisualandmechanicaltestingmethodsofwirebonds•Light-andscanningelectronmicroscopicalexaminations•Pulltest•Shearte

2、stbbbbDr.Dr.-Dr.--Ing.M.Schneider-Ing.M.SchneiderIng.M.Schneider-Ing.M.Schneider--Ramelow-RamelowRamelowphone:+4930/46403-172,fax:-162Ramelowmartin.schneiderramelow@izm.fraunhofer.deFraunhofer-InstitutfürZuverlässigkeitundMikrointegration(IZM)Gustav-Meyer-Allee25

3、,D-13355Berlinsheet1WireBondingWireBondingQualityAssuranceWireBondingQualityAssuranceQualityAssuranceandQualityAssuranceandandTestingandTestingTestingMethodsTestingMethodsWirebondingandqualityassurance:GeneralrequirementsGlobalformulation:•lowcosttechnology•easyt

4、orealizeandflexibleduringapplication•strongmechanicalstability•thermalstability(inregardtofurtherprocessingsteps)and•goodlongtermstability•lowcontactresistance•asmuchaspossiblegreatweldingareabetweenwireandmetallization•nophysicalandchemicalinteractionswithotherm

5、aterialsTestmethods:•visualinspektionMIL-STD883method2010,2017•pulltestMIL-STD883methode2011(destructive),methode2023(nondestructive)•sheartestASTMF1269-89sheet2WireBondingWireBondingQualityAssuranceWireBondingQualityAssuranceQualityAssuranceandQualityAssurancean

6、dandTestingandTestingTestingMethodsTestingMethodsBondingmethodsWireQualityassuranceBondingmetallization!principle!diameter!qualitytestmethods!material,pretreatment!parameters!elongation,pull-strenght!standards!hardness,property!bondingmaterial!hardness!parameterc

7、ontrol!layerthickness/structure!processkinetics!surfacetopology!product/application!contaminationetc.!behaviorduringbondingrequirementsetc.etc.etc.InfluencesduetothebondingprocessBondingmachineBondingconditionsBondingsubstrateDesign!bondingprocedure!personalknow-

8、how!material,assembly!layout!bondingspeed!personalmotivation!vibrationbehavior!functionality!adjustment,accuracy!productionsequence!layeradhesiveness!simulatio