两层贴合保护膜剥离.ppt

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1、两层贴合撕保护膜问题DRI:BardeenYang/Z_PEReview:BardeenYang/Z_PEVersion:V0.1Status:Preliminary1ChangeHistoryVersionDateStatusDRIDescription0.12012/10/09PreliminaryBardeenYangPreliminary2原料资料卷号：12C20A04-10AGOCA卷号：R#28C#63S#43作业手法拉耳贴上产品手拉拉耳撕掉保护膜4五天后撕去保护膜2013.6.19五天后撕掉保护膜没有撕不掉的问题。567Ro

2、otcauseanalysisFoldingmachinedesignreviewCurrentfoldingmachinehasbottomdatumedgeandrightdatumedge,buthasnoflexdatumedge.OncetheflexRTVgluewidthshiftstoLSL,thefoldingdimensionswillhavehighriskshiftingtoLSLcausedbythefoldingmachine.BottomdatumEdgeandrightdatumedge,NotFlexda

3、tumedgeGlassFlexFlexRTVgluewideFlexRTVgluenarrow8RootcauseanalysisFoldinglaminationmethodreview3outof18unitsfailedinflexfoldingGNGbuttheRTVglueisclosetonominalvalue.It’ssuspectedthattheGNGfailurewascausedbynotplacingthedisplayclosetodatumedgeoffoldingmachineduringfolding.

4、Simulatedplacingthedisplaywithdifferentgapbetweendatumedgeanddisplay.(seenextpagefordetails).Theresultisthatwhenthere’sgapbetweendatumedgeanddisplay,thefoldingGNGwillfail.NGsamplefoldingdemissionNGsampleFlexRTVgluedemission9RootcauseanalysisFoldinglaminationmethodreview–d

5、ifferentgapsimulationsSlightgapMiddlegapSeriousgapMiddlegap10FAConclusion1>15outof18pcsfailureswerecausedbyfoldingfixture:noFlexdatumedgeandtheRVTglueshittoLSL2>3outof18pcsfailureswerepotentiallycausedbyoperator:notfollowfoldingSOP11Corrective/PreventativeActionandPlannin

6、gRootcause1:15outof18pcsfailureswerecausedbyfoldingfixture:noFlexdatumedgeandtheRVTglueshittoLSLCorrectiveActionplanning:Addflexdatumedgeonfoldingfixture(seebelowpreliminarydrawing).NeedtogetapprovalfromLab/Amazonbeforeimplementation12Corrective/PreventativeActionandPlann

7、ingRootcause2:3outof18pcsfailureswerepotentiallycausedbyoperator:notfollowfoldingSOPCorrectiveActionplanning:Re-trainallofoperatorsforthisstationtofollowSOPcarefullyandenhancethefactoryworkingdisciplineDRI:WangXing(IE)andGuoxiZhang(MFG)Duedate:2012/10/1013Thankyou!14