PCFinalSFRfailureunitFAAug.01.1/28Background:PiranhaColorBTBsuddenlyhappenhighfinalSFRyieldloss~0.57%onproductionlineonJuly.31..2/28FinalSFRunitFA:Randomlytake10pcsSFRdefectunitstoanalysisandtheresultastable:FAMethodologyflow:RetestatgoldenTesterSearchfororiginalFocus/FinaltestdataCompileSFRdataVisualInspection1>VisualInspection&Retesttestatgoldentestresultastable:

VisualInspectionresultasbelow:Retestresultasbelow:StatuslensContaminationpasspassfailQTY0

1037TTL10

10Goldentesterretestdataasbelow:SNStatusSFR_ULSFR_URSFR_CenterSFR_LLSFR_LRVDC306H7092FAIL0.5990.4550.6590.6230.454VDC306H7163FAIL0.5950.4220.690.6290.548VDC306J1027FAIL0.6960.6670.6170.6530.643VDC306J5112PASS0.6590.6090.6830.6680.597VDC306J5128PASS0.6320.6440.6380.6510.648VDC306J5179PASS0.6670.6710.6470.650.656VDC306K1176FAIL0.6460.5290.6980.6470.598VDC306K5093FAIL0.6650.6610.6280.6420.602VDC306K5117FAIL0.5310.6610.5590.4860.663VDC306K5118FAIL0.650.6630.6250.6530.659Remark:finallimit0.53<(ULURLLLR)<10.63<Center<1Confirmresultshow60%finalSFRunitaremarginalfailedinclude2pcsmarginalpassunit.3/2810pcsOriginalfocusandFinaltestdataastable:Finding:80%FinalSFRdefectunitarefromSFRmarginalPassinfocustest;70%FinalSFRdefectunithavebigSFRdrop(delta>0.06)betweenfocusandfinaltestexcept1pcsunit(VDC306J5112)duetocontactnowellduringfinaltestwhichleadtoSFRimageabnormalcauseSFRfailure.Originalfocusdata:OrignalFinaltestdataDelta(Focusdata-Finaldata):SNStatusSFR_ULSFR_URSFR_CenterSFR_LLSFR_LRStatusSFR_ULSFR_URSFR_CenterSFR_LLSFR_LRSFR_ULSFR_URSFR_CenterSFR_LLSFR_LRVDC306H7092PASS0.6160.5690.6950.650.558FAIL0.5970.4650.6710.6310.4480.0190.1040.0240.0190.11VDC306H7163PASS0.6480.580.7130.6440.622FAIL0.5940.4340.6990.640.5210.0540.1460.0140.0040.101VDC306J1027PASS0.690.6520.6770.660.643FAIL0.6850.6530.5730.6270.610.005-0.0010.1040.0330.033VDC306J5112PASS0.6660.6220.6960.6840.611FAIL2.0890.3430.4850.6390.594-1.4230.2790.2110.0450.017VDC306J5128PASS0.6650.6540.6730.6550.613FAIL0.6060.6450.6140.6470.6630.0590.0090.0590.008-0.05VDC306J5179PASS0.6870.6750.6810.6660.663FAIL0.6790.6610.610.6450.6570.0080.0140.0710.0210.006VDC306K1176PASS0.6530.580.7010.650.623FAIL0.6440.5120.6970.6530.6050.0090.0680.004-0.0030.018VDC306K5093PASS0.6730.6870.6550.6540.622FAIL0.6650.6690.6250.6410.6110.0080.0180.030.0130.011VDC306K5117PASS0.6420.630.6910.6490.603FAIL0.5150.6560.5480.4570.6660.127-0.0260.1430.192-0.063VDC306K5118PASS0.6560.6750.7070.6320.658FAIL0.6370.6720.5960.6440.6660.0190.0030.111-0.012-0.008OriginalFinaltestSFRimageRetestSFRimage4/28FinalSFRunitFAsummary:80%(8/10)finalSFRdefectunitarefromSFRmarginalPassinfocustest;60%(6/10)SFRfailurearemarginalfailedinfinaltestinclude2pcsretestingmarginalpass;70%FinalSFRdefectunithavebigSFRdrop(delta>0.06)betweenfocusandfinaltest.

5/28FishbonediagramFinalSFRfailureMATERIALMANMachinePoorhandlingwhichcausephysicaldeformation(localizedtocertaintestersinceoperatorassignmentbytester)METHODLocalizedtocertaintesters(Focusandfinal)Usedifferencelenssupplierwhichhasperformancedifference√CheckbytesterdefectdistributionCheckbackproductionhistorylatest1week

CheckUVintensityforalltestersCheckTorquemonitoringdata√ChecktesterbytestervariancecomparetogoldentesterCheckfocusSFRperformanceCheckLensMTFperformance6/28Whatactionhavebeendone:1>Check10pcsdefectunitfromfocustesterandFinaltestbreakdownastable:Theresultshowtesterdistributionisrandomly.Pls.notetheproductionlineonly5setfocustestersand3setsfinaltestersonstartofmorningshift.StationQty

StationQtyPC-FOCUS11

PC-FINAL15PC-FOCUS33

PC-FINAL33PC-FOCUS52

PC-FINAL42PC-FOCUS73

PC-FOCUS81

7/28Whatactionhavebeendone#2:2>Take3pcsgoldenunitstodoquicklythecorrelationofalltesterinclude(Focus/Finaltester)compiledata,theresultasbelow:Theresultshowalltestersareundercontrolled(SFRdelta<=0.03)Note:SFRdetla=Goldentesterdata-MPtester’sdata8/28Whatactionhavebeendone:3>CheckUVintensityofallsemi-autogluemachine,Resultasfollow:TheresultshowedUVmachineallareundercontrolled.TesterID>3500mj/cm2CH1CH2PC-FOcus014542.793722PC-FOcus023923.023752PC-FOcus033931.783673PC-FOcus044304.083706PC-FOcus054057.343637PC-FOcus063809.873655PC-FOcus074026.684583PC-FOcus083776.2937149/28Whatactionhavebeendone:4>CheckLenstorquemonitoringdata.Datashowedthatthelenstorquedataareundercontrolledandabovethespeclimitofmin.20N-MM.10/28Whatactionhavebeendone:5>Lookforlatest1weekSFRtesthistory,SFRyieldlossastable:TheresultshowSFRyieldofNMBbwithtexturetoolingisbadcomparetoKTandMNAA.LenstoolKTNM(7/28~8/1)DiffenceWW29DAAwithouttextureFBBwithtextureBvsABvsKTFocusTestinputQty3814735014029

FocusSFRdefectrate(FPY)0.68%1.05%2.55%1.50%1.87%FinalSFR0.03%0.09%0.83%0.74%0.80%11/28Whatactionhavebeendone:6>Randomlytake4000pcsunitdatafromfocustestingfromKTandNMlensseparately,theSFRPerformancecomparisonresultastable:Finding:TheSFRperformancefromKTisclearbetterthanNMonSFRaverageandSFRCPK.Pls.note:KTSFRdataisfromJuly.25,NMSFRdataisfromJuly.31.SFRaveragecomparisonSFRStdevcomparisonSFRCPKcomparison12/28TheSFRdatafromKTisbetterthanNM’s.4000pcsunitdatafromfocustestingfromKTandNMlensseparately,theSFRcomparisonresultastable:13/287>RandomlytakeMTFtestdatafromIQCbysupplier(KT:250pcsNMtoolA:196pcsNMtool:B)theMTFperformancecomparisonresultasbelow:Finding:NMAandBtoolperformancenocleardifferentonMTFAverage,StdevandCPK.KTlensperformanceisbetterthanNMonMTFaverageCPKCorner.TheMTFCornerStdevofKTisbetterisNM,theMTFCenterofNMisslightbetterthanKT.Whatactionhavebeendone:MTFaveragecomparisonMTFStdevcomparisonMTFCPKcomparison14/28250pcsKTlensandtooling”AA”196pcs&tooling”BB”160pcslensMTF

datacomparisonbyboxplotasbelow:TheSFRcomparisonresultisshowing:KTlensMTFdataisbetterthanNewmaxtooling“AA”lensandtooling“BB”lens.KTlensNM-AAlensNM-BBlensKTlensNM-AAlensNM-BBlens15/28Study#1-FinalSFRcomparisonbystagetime: Take8of10pcsSFRdefectunittodostagetime12H/24HandretestthematoriginalfinalTester,andThencompareSFRtestdata(includeoriginalFocus/Finalandstage12H/24H). Theresultshow5of8pcsFinalSFRfailureretestpassafterstage12Hinclude1pcsmarginalSFRpass. Theresultshow6of8pcsFinalSFRfailureretestpassafterstage24Hinclude2pcsmarginalSFRpass. 8pcsfinalSFRdatacomparisonbystageresultPls.refertoslide#7~10.Retestresultatoriginalfinaltesterafterstage24H:SNStatusSFR_ULSFR_URSFR_CenterSFR_LLSFR_LRVDC306H7092stage24HFAIL0.570.4410.6550.6020.411VDC306H7163stage24HFAIL0.5970.4090.6950.6450.508VDC306J1027stage24HPASS0.6810.6480.6840.6670.641VDC306J5128stage24HPASS0.6330.6580.6550.6580.648VDC306K1176stage24HPASS0.6390.5380.70.6480.618VDC306K5093stage24HPASS0.6590.6720.6440.6440.614VDC306K5117stage24HPASS0.6220.6140.6690.6050.657VDC306K5118stage24HPASS0.670.6620.6850.6880.645Retestresultatorignalfinaltesterafterstage12H:SNStatusSFR_ULSFR_URSFR_CenterSFR_LLSFR_LRVDC306H7092stage12HFAIL0.5660.4230.6470.5990.407VDC306H7163stage12HFAIL0.5920.3930.6910.6480.491VDC306J1027stage12HPASS0.6820.6460.6850.6680.64VDC306J5128stage12HPASS0.6290.6590.6640.6590.651VDC306K1176stage12HFAIL0.6380.5270.6940.6540.613VDC306K5093stage12HPASS0.6510.6740.6340.6390.615VDC306K5117stage12HPASS0.6140.6090.6690.6010.645VDC306K5118stage12HPASS0.670.6640.6840.6870.65416/282pcsunit’sSFRdatanochangeafterstage12Hand24HcomparetooriginalfinalSFRdata.17/282pcsunit’sSFRvaluehaveclearriseagainafterstage12HcomparetooriginalfinalSFRdata,especialisonSFRCenter,afterstage12H,Unit’sSFRvalueisstable.18/282pcsunit’sSFRdatanoclearchangeafterstage12Hand24HcomparetooriginalfinalSFRdata.19/282pcsunit’sSFRvaluehaveclearriseagainafterstage12HcomparetooriginalfinalSFRdata,especialisonSFRCenter,afterstage12H,Unit’sSFRvalueisstable.20/28FinalSFRcomparisonbystagetimesummary:Basedon8pcsSFRcomparisonbystagetime,theresultfinding:4of8pcsSFRvaluehavecertainrecoverafterstage12H,especialisonSFRCenter.21/28Study#2-Refocus3SFRfailureunit:3SFRdefectunitsSFRdataafterrefocusastable:DatashowSFRdatacanrecovertofocustestdataafterrefocus.Refocuslensdirectionas:SNRefocusStatusRefocus

directionVDC306H7163PASSLensdownwardturn10?VDC306K1176PASSLensdownwardturn8?VDC306H7092PASSLensdownwardturn10?SNTestprocessStatusSFR_ULSFR_URSFR_CSFR_LLSFR_LRVDC306H7163OriginalFocusdataPASS0.6480.580.7130.6440.622BeforerefocusFAIL0.5970.4090.6950.6450.508AfterrefocusPASS0.670.6550.7160.6540.668VDC306K1176OriginalFocusdataPASS0.6530.580.7010.650.623BeforerefocusFAIL0.6390.5380.70.6480.618AfterrefocusPASS0.6380.5790.7190.6550.609VDC306H7092OriginalFocusdataPASS0.6160.5690.6950.650.558BeforerefocusFAIL0.570.4410.6550.6020.411AfterrefocusPASS0.6220.6230.7090.6550.58922/2823/28Study#3-DOEforreducingfinalSFRfailurerateToreducefinalSFRdefectrate,oneDOEhavebeendone:Methodology:FocustestGluePlaceelectrostaticskinonlenssurfaceUVCuringFinalTestPlaceelectrostaticskinonlenssurfaceasbelowfig:24/28Materialrequirement:Take1PTunits(130pcs)fromNMToolBwithtexture.DOEresult:Theresultshow100%unitispassinfinaltest.SFRdatacomparisonbetweenfocus/Finaltestandtheresultsummaryastable:1pcsunit’sdelta>0.06possiblefactor:Possibleplacetheelectrostaticskinontothesurfaceoflensmovelens.Possiblemovelensbytipwhileglue.PossibleLenselementmoving.1>DOEtestresult:Uni