IPC 2018 High Reliability Forum - cat-test.info · . coupons shall include component (a), via (b)...

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Copyright © 1994-2018 Conductor Analysis Technologies, Inc. – All Rights Reserved IPC 2018 High Reliability Forum May 2018

Transcript of IPC 2018 High Reliability Forum - cat-test.info · . coupons shall include component (a), via (b)...

Copyright©1994-2018ConductorAnalysisTechnologies,Inc.–AllRightsReserved

IPC2018HighReliabilityForum

May2018

Copyright©1994-2018ConductorAnalysisTechnologies,Inc.–AllRightsReserved

IPCReliabilityUpdates•Conformancecoupons•1-10ccommiGee

•Reliabilitytestmethods•D-32commiGee

•PerformancespecificaMons•D-33acommiGee(IPC-6012)•D-22commiGee(IPC-6018)

•ReliabilitytesMngtoday

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1-10cCommi?ee•Developedanewsuiteofcoupons• IPC-2221AppendixA

•LegacyDcouponforviareliability•Only24holes•DaisychainconnecMonsonalllayers•Allstructuresinsinglenet

•NewDcouponforviareliability•Manyholeswithvariablepitch•DaisychainconnecMonsatextremes•Singlestructurepernet•Twouniquenets

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IPCDCouponGenerator•BasedonIPC2221BAppendixA•Featuresdesignedtomatchproductboard•ConMnuousdevelopmentwithIPC1-10c

•Menudriveninputs•Gerberfileoutputs•Twoindependent/uniquenets•Viastructures•Through•Sub-composite•Blind•Buried•Stacked•Staggered

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D-32Commi?ee•TM-650Method2.6.2.27A(08/2017)•ConMnuousresistancemonitoringthroughreflowsimulaMon•Failureat5%changeinresistance

•TM-650Method2.6.7.2B(inprogress)•ThermalcyclingacerreflowsimulaMon•Expandedthermalcyclingrange• -55to(Tg-10C)•Usingthelaminatetoworkthecopper• Lookingfordamagefromreflowandmanufacturingissues•NotusedforlifepredicMons

•Failureat5%changeinresistance•PotenMalforreducMoninnumberofcycles(100?)

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ReflowSimulaGon

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Through

Blind

Stacked

6xReflow

Failure

Healing

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IPCSpecificaGons•Slowlymovingtowardperformancebasedacceptance

•Microviadefectsareocennotfound

•IPC-6012(D-33a)andIPC-6018(D-22)•Revisionsinprocess• IPC-2221AppendixAcouponsrequired•ConMnuousresistancemeasurementsthroughreflowsimulaMonasanopMonaltest

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DetecGngMicroviaDefects•MicrosecMons•Extremelysmallsamplesize•Verydifficulttosee•Openatreflowtemperatures•Veryocengoodatroomtemperature(selfhealing)

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DetecGngMicroviaDefects

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DetecGngMicroviaDefects

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CourtesyofRobisonLabs

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DetecGngMicroviaDefects

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CourtesyofRobisonLabs

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ReliabilityTesGngToday•ResistancemonitoringthroughreflowsimulaMon•CurrentlyusedbymanyOEMs•6,12,and24cyclesiscommon

•Thermalstress/thermalshock•ManybasedonoldtestcondiMonsB-Fwith250to500cycles•Somemovingto-55Cto(Tg-10C)with100cycles

•IPCPCQR2Program•NewtestpaGernsasofQ3-2017•Manymicroviastructures•ReflowsimulaMonand500thermalcycles

•IPC6012QMLProgram•ReflowsimulaMonand100thermalcycles

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IPCPCQR218LayerDesign

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RecommendedDrawingNotesXX.IPCDCOUPONTESTING

A.IPCDCOUPONSSHALLBEDESIGNEDUSINGTHECOUPONGENERATORATWWW.CAT-TEST.INFO.COUPONSSHALLINCLUDECOMPONENT(A),VIA(B)ANDALLPROPAGATEDBSTRUCTURESIAWIPC-2221BAPPENDIXA.2OFEACHCOUPONDESIGNSHALLBETESTEDPERMANUFACTURINGPANEL.

B.THEIPCDCOUPONSSHALLBESUBJECTEDTO6REFLOWSIMULATIONSIAWIPC-TM-650,METHOD2.6.27AUSINGTHE230CPROFILE.ACCEPTANCECRITERIASHALLBE<5%CHANGEINRESISTANCE.

C.AFTERREFLOWSIMULATIONTHEIPCDCOUPONSSHALLBESUBJECTEDTO100THERMALCYCLESIAWIPC-TM-650,METHOD2.6.7.2FROM(TG-10C)OFTHELAMINATEMATERIALTO-55C.ACCEPTANCECRITERIASHALLBE<5%CHANGEINRESISTANCE.

D.RESULTSFROMALLCOUPONSTESTEDSHALLBEREPORTED.

Note:Parametersingreenshouldbetailoredtoeachapplica;on.

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CostofPCBDefectEscapes

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RelaMveCo

st

Coupon BarePCB AssembledPCB System FieldFailure

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ThankYou•MoreInformaMon•www.cat-test.info

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