COB制程控制EnglishWord下载.docx
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4ProductionPreparing
4.1ProductionInput
4.2Material
4.3Equipment、Instruments、ToolandJig
4.4Others,suchastheproductionoperatorandworkinginstruction
5ProductionProcessControl
5.1PCBCleaning
5.2D/A
5.3Curing
5.4W/B
5.5Coating
5.6Vacuumtheairbubbleexistinepoxy
5.7Curing
5.8FinalChecking
5.9Defectsrepairingandmaterialmanagementcontrol
6Bonderparametersettingcontrol
6.1AB509A、AB509bonderparameter
6.2AB559bonderparameter
7Equipments、Instruments、toolandJigmaintenance
7.1Curingstove
7.2Bonderandwedge
7.3Refrigerator
7.4Vacuum-desiccator
7.5TestJig
8Record
9EffectiveDate
REVISION/AMENDMENTHISTORY
DATE
REV
PAGE
DESCRIPTION
2002-4-12
A0
ALL
FirstIssue
2002-5-30
A1
Item4.3.4addingcontent；
2003-3-13
A2
Cancelalcoholultrasoniccleaning;
TestingtheviscidityofepoxyshouldbeperformedbyIPQCinsteadofPE.ReviseProcessControlP-chartandEpoxyTemperatureControllingtable.
2003-9-4
A3
Reviseitem4.2.1content,additem4.5.1.6
2005-12-12
A4
All
Additem5.1.3（addingFR-1PCBcleaning）andReviseitem
7.5.1（addinggoldensample）
SetuptheCOBproductionprocessmanagement
ItwasusedonlyforCOBprocessmanagementinNamtai.
3ProductionFlowChart
4.1Production
PROD/PE/STmembergetreadytoproduceaccordingtotheproductionplanandproductionNotice.
STpreparesmaterialandsendstoPRODmaterialroomaccordingtotheproductionplanandthematerialsendingoutnotice.ThepersoninchargeofmaterialofPRODdeptshouldchecktheqtyandtype,andsendthematerialtoproductionlineonschedule.
4.3Equipment、Instruments、ToolandJig
AccordingtotheProductionLinetransfernotice,PEpreparetherelevantEquipment、Instruments、ToolandJigandmakesureallofthemwereingoodconditions.（Forspecialissues,PRODneedtoinformPEtopreparebeforehand2hoursearly.
4.4Others,suchastheproductionoperatorandtheworkinginstruction
4.4.1PRODpersonnelarrangetheproductionoperatorandtheworkingstationaccordingtothe
Productionplan.
4.4.2TheProductionLineLeaderwithresponsibilityforputtingtheworkinginstructionandtrackrecordtableoneachstation,makessureeveryoperatorunderstandtheinstructionsandcanfollowtheinstructionstrictly.OperatorshouldweartheESDwristasrequirement.
4.4.3PEshouldpreparetheCOBEngineeringDocuments,thefacility,toolingandJig.PEiswithresponsibleforanalyzingandsolvingthequalityabnormality.
4.4.3IPQCshoulddoinspectionaccordingto<
<
FAIoperationprocess>
>
and<
IQCprocedure>
described.
5Productionprocesscontrol
5.1PCBCleaning
5.1.1TheFR-4PCBwithVacuumpackagecanbeputinusedirectly.
5.1.2ForthoseFR4PCBthathaspassedSMTstationfirst,theoperatorneedstouserubbertocleanthebondingareajustastheworkinginstructionrequest.
5.1.3Baseontherequirementnotedineachmodel’sworkinginstruction,theoperatorneedusetheauto-wipingmachinetocleanupthefilmcoveredonthebondingareaoftheFR1PCB.
5.1.4Aftercleaningjobwasfinished,putthePCBintotheturnoverboxandflowtonextstation.
5.1.5IPQCshoulddofirstproductsinspectiontoverifythePCBcleaningeffectsafterPCBwascleaned.Eachtimesampling1PCSforeachmodeltocheckwhetherthegoldenfingerinPCBbondingareawascleanenoughandrecordthecheckingresultsin<
FirstProductsConfirmationSheet>
andkeeptherecordsforoneyear.IPQCissuestheDefectsImprovementNoticeandrequeststherelevantdeptanalysistherootcauseanddoanyimproveactionsifthereareanyproblemsoccur.IPQCwillfollowandconfirmtheimproveeffect.ForNewModeltrialrun,IPQConlyneedfill<
NewModelQCInspectionReport>
.
5.2DieAttaching
5.2.1OperatorconfirmsthePCBandDie’stypeandmakesureitisconsistentwiththeworkinginstruction,thenputitintoproperaluminumboxpiecebypiece;
checkthegluetypeanddroptheglueonthePCB;
usevacuumpentofetchthedieandplaceitonthegluewithproperdirection.Alltheactionsshouldbeproceedaccordingtotheworkinginstruction.
5.2.2OperatorneedfilltheD/Adate,shiftNO,quantityandICLotNo.inthetracesheetafterfinishproducingabouttwentyboxesPCB,andwithsignaturesaswell.PRODshouldkeepthetracesheetforthreemonths.
5.3Curing
5.3.1ThePCBwithattachedDiceneedstobesenttotherelevantstovetocuringorplacesittotheappointedareawaitingforcuringnaturally.
5.3.2IPQCsamplingcheck
Accordingtothecheckingitemsnotedineachmodel’sworkinginstruction,IPQCdocosmeticinspectionforthosePCBwhichwasfinishedD/Aandreadytocuringonetimeeachday,eachtimesampling1PCBforeachmodel,checkingwhethertheIC’stypewasrightandICwasinsmoothpositionwithrightdirection,makingsuretherearenocosmeticobjectionssuchasbroken,notch,foreignmaterialandsoon.RecordthecheckingresultsinIPQCSamplingCheckingRecordProcessControlP-Chart,keeptherecordsforoneyear.Ifthereareanyproblems,IPQCneedissuetheDefectsImprovementNoticeandrequeststherelevantdeptanalysistherootcauseanddoanyimproveactions.IPQCwillfollowandconfirmtheimproveeffect.ForNewmodeltrialrun,IPQConlyneedfill<
.
5.4WireBonding
5.4.1TheoperatorshouldverifytheCOBpartsandthebondingprogramandtheworkinginstructionisconsistentwitheachother,andcanbegintoworkafterallwasconfirmedOK.FollowingtherequirementslistedintheworkinginstructionandCOBcurrentInspectionStandard,theproductionoperatorneedtodofunctiontestandcosmeticinspectionforallproducts,fillthecheckingresultsintheSingleInspectingRecordsheetaswell.
5.4.2Operatorneedfillthetracesheet,recordtheMachineNo.,quantity,DateandtheoperatorafterfinishedproducingabouttwentyboxesPCB
5.4.3Forthosedefectsthatfailedforrepairingbyoperatorshouldbelabeledandsenttotherepairmanforrepairing.
5.4.4Stopproductionwhentherearedefectsoverthelimit,andinformPRODsuperviseandPEtechnicianintime.Theproductionlineleadershouldissuethe<
QualityAbnormalityNotice>
5.4.5LineleaderwriteTransferNoticeandinformPEtechniciantoprepareforanotherproductsproduction.OperatororlineleaderinformPEtechniciantoadjustthemachinewhenproblemsoccur.PEtechnicianneedfilltheBonderUsingRecordwhentransferoradjustthemachine,andkeeptherecordforhalfyear.
5.4.6PEChecking
5.4.6.1Appearanceandfunctioncheck
PEtechnicianshoulddotheappearanceandfunctioncheckaftertransferoradjustthebonder.Andchecktheappearanceandfunctiontwiceforeachdayfilltheresultsin<
Appearance/function/pullcheckingrecord>
.PEshouldkeeptherecordsforhalfyear.
5.4.6.2bondingwirepullmeasure
PEtechnicianshoulddobondingwirepulltestaftertransferoradjustthebonder,filltheresultsin<
.Thebondercanbeputinusetilltheappearance,functionandpulltestwasverifiedOK.
5.4.7IPQCinspection
5.4.7.1CosmeticChecking
Accordingtothe<
COBCommonInspectionStandards>
IPQCdotheappearanceinspectionforCOBproductsthatwasfinishedbondingforeachbondermachineeverytwohoursforeachshift.Eachtimesamplingcheck1PCS,andfillthecheckingresultsin<
ProcessControlP-Chart>
5.4.7.2Bondingwirepulltest
IPQCcheck1PCSproductsanddothebondingwirepulltestwhenthereismodelchange.Andcheck1PCSanddothebondingwirepulltesteverytreedaysforthoseproductsiscontinualproducingoverthreedays.Testsixwires（fourcornersandthemiddleofleftandupside）pullandrecordtheresultin<
X-Rchart>
.IPQCwillkeepthechartforoneyear.
5.4.7.3Functionsamplingchecking
Eachday,IPQCsamplingcheckthefunctionof1PCSproductsthatwerealreadyfinishedbondingandpassedthefunctiontest.Recordthetestresultsin<
.Whenfoundsomedefects,IPQCneedissuetheDefectsImprovementNoticeandrequestsResponsibledeptanalysestherootcauseanddoanyimproveactions.IPQCshallkeeptheDefectsImprovementNoticeforoneyear.Aftersamplingchecking,IPQCshouldsignandfillthedefectsQTY,inspectedQTY,defectrateintracesheet.
5.4.7.4Defectsjudgeandsolve
5.4.7.4.1IPQCsupervisorshallcheckoramendthelimitsofthecontrolcharttermly.
5.4.7.4.2Thejudgmentforuncontrolledprocess:
a.Thedatapointoverthecontrollimit.
b.ContinualSevenpointswasgoupordropdown.
c.Thedatapointwaschangeperiodically.
5.4.7.4.3Whenfoundsomedefects,IPQCneedissuetheDefectsImprovementNoticeandrequestsresponsibledeptanalysestherootcauseanddoanyimproveactions.IPQCwillfollowandconfirmtheimproveeffect.
5.4.8Bondingwirepulltestingguidance
5.4.8.1Tools:
microscope、pullmeter、ironwire
5.4.8.2Testsixwires’pull（fourcornersandthemiddleofleftandupside,refertobelowillustration）.Theminimumpullof1.25milwiregreaterthanorequalto5gisOK,for1.00milwire,theminimumpullshouldgreaterthanorequalto4gisOK.（ItisNGifPointAorEwasbroken）
PullMeasureillustration：
5.5.1Accordingtotheworkinginstructionrequirements,theproductionoperatorchoosestheproperepoxyfordifferentproductsforcoat
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