排貨流程及策略介紹

排貨流程及策略介紹

DispatchflowandstrategyIntroductionContentDispatchPurpose&strategyTerminologyintroductionTraditionalmanualdispatchoperationflowNowDispatchingEngineoperationflowD-Engine’sBenefitBasicdispatchstrategyconceptD-Enginearchitecture&defaultdispatchstrategyOPI&D-EngineperformancedemoDispatchPurpose&strategyModelingintegrateddispatchruleindispatchingsysteminordertosystematized.Purpose:Achievemonthly/quarterlyproductionplan,createthemaximumrevenuereduceproductioncycletime,inventoryOntimedeliveryStrategy:EnhancelinebalanceBottleneckmachineutilization

MovetargetcontrolBackTerminologyICflowLot(晶圓批)WIP:Workinprogress(在製品)Move(晶片移動(dòng)量)T/R:TurnRate(晶片週轉(zhuǎn)率)Cycletime(生產(chǎn)週期)WaferIn/Out(晶片投入量/晶片產(chǎn)出量)ProductionPlan(生產(chǎn)企劃)Lotpriorityclass(晶圓批優(yōu)先權(quán))BackICflowWaferstartWetT/FDiffPhotoEtchIMPWaferoutCMPBackWPMovedefinitionMove:晶片移動(dòng)量Definition:PureMove=EffectiveMove….BackT/RDefinitionT/R:週轉(zhuǎn)率Definition:T/R=Move/WIPT/R=PassedStepscount/DayExample:

Back11/19Fab8Amove=677478pcs,WIP=88473pcs Fab8AT/R=677478/88473=7.66CycletimedefinitionT/RCycletime例如0.15um256MDDRTR/Day=6.5,totalstepcount=620T/Rcycletime=620/6.5=95dayOutputCycletime例如Lot12003/07/0107:30投入,2003/09/0107:30產(chǎn)出Outputcycletime=31+31=62dayIn-linecycletimeOP1flowC/T134產(chǎn)出投入投入->產(chǎn)出=1+3+4=8dayOP1->OP3=1+3=4dayOP2OP3Waitingtime+Holdtime+processingtime+transfertimeBackFabproductionPlanMasterproductionplanDailyAvginput/outputplanBack0.15um_S9*0.165um_NS*0.18um_N5*0.18um_N5*0.165um_NS*0.15um_S9*LotpriorityclassPriority:優(yōu)先度Priorityclass:1:Q-timeshortlotsie:WJ->RGP2:UQTATLots.:SuperHotlots3:QTATLots:needtobehurryup.4:STDlotsneedtobequick.5:STDlots.6:STDlotscanbelittlelate.BackTraditionalmanualdispatchoperationflow

Flow

MFGMovetargetsupervisordailyproductionactionitempersonalexperiencereportsupportGroupleader/TEotherareasupervisorOperatorQueryOPIMFGManuMoveTargetNextNowD-EngineoperationflowDispatchinglotlistOperator

SelectthefirstlotUserDataSettingInterfaceOperationPrtD-EngineDBLotinformationEQPinformationRecipeinformationFlowinformation...supervisorNextdailyproductionactionitempersonalexperiencereportsupportD-EngineBenefit上線前上線後現(xiàn)場派工–現(xiàn)場派工訊息不直接傳遞–現(xiàn)場派工依人的不同而不同,沒有一定的模式現(xiàn)場派工訊息直接傳遞現(xiàn)場派工有一定的模式產(chǎn)品交期人工處理更改產(chǎn)品交期系統(tǒng)自動(dòng)調(diào)整交期機(jī)臺(tái)負(fù)荷機(jī)臺(tái)負(fù)荷平均化不易全盤掌握系統(tǒng)自動(dòng)調(diào)整機(jī)臺(tái)負(fù)荷平均化BackBasicDispatchStrategy-1/13Example:LotpriorityforpriorityclassEQPALot2Lot1ReadyLot3SuperhotlothotlotNormallotExample:LotpriorityforduedateEQPALot2Lot1ReadyLot3Ahead:3.1dayAhead:1.1dayDelay:1.1dayNextBasicDispatchStrategy-2/13EQPAAReadyAAABTarget400pcsTarget0pcsD-Strategy:EQPAdispatchlothaveremainingtarget,Atypelotwillbefirstdispatched.Example:LotpriorityforMovetargetNextBasicDispatchStrategy-3/13Example:LotpriorityforQ-timeEQPBLot2Lot1ReadyLot3RemainQ-time:3.1hrsRemainQ-time:2.3hrsRemainQ-time:0.5hrsOP1flowQ-timeConstraint4hrOP2OP3EQPAReadyD-Strategy:EQPA’sWIPdispatch,willconsiderQ-WIPquantityifhaveoverEQPB’sloading.NextBasicDispatchStrategy-4/13EQPCEQPAEQPBRunDown/PM/S.S/processInhibitBBAAAReadyExample:LotpriorityforthenextOPofEQP’’sstatusNextBasicDispatchStrategy-5/13EQPCEQPAEQPBRunRunABBAAAReadyBAAAAAssumethatproductA,BprocesstimearethesameExample:LotpriorityforthesametypeofEQP’sWIPNextBasicDispatchStrategy-6/13EQPCEQPAEQPBRunRunABBAAAReadyBAAAAExample:LotpriorityforthefollowingWIP/StandardWIP121D-Strategy:LottypeAwillbedispatchfirstduetotheWIPofEQPAismoresmallerthanstandardWIPStandardWIPNextBasicDispatchStrategy-7/13EQPAEQPBABAReadyReadyEQPAEQPBAABOptimizeRunRunEQPAEQPBABARunReadyBadExample:LotpriorityforEQP’’SutilizationNextBasicDispatchStrategy-8/13EQPAEQPBABRunRunEQPAEQPBOptimizeRunEQPAEQPBBadVVVVVLotprocessingonloadportEmptyloadportcanreserveanotherlotVVVVVVVVVVExample:LotpriorityforassignlotbalanceNextBasicDispatchStrategy-9/13EQPAVC1C2RecipeARecipeA->C1chamberRecipeB->C2chamberOptimizeBadEQPAVVC1C2RecipeARecipeAEQPAVVC1C2RecipeARecipeBExample:LotpriorityforchamberutilizationRecipeARecipeBNextBasicDispatchStrategy-10/13EQPAMaxbatchsize=2lotsRecipeARecipeALotX’ferLotatStkBadOptimizeEQPARecipeARecipeAEQPARecipeARecipeAD-Strategy:EQPAWaitforanotherlotfinishedX’’fer,thendispatchtogetherExample:LotpriorityforbatchsizeNextBasicDispatchStrategy-11/13EQPAMaxbatchsize=4lotsRecipeARecipeARecipeARecipeARecipeBEQPARecipeARecipeARecipeARecipeARecipeBNormallotNormallotSuperhotlotNormallotExample:LotpriorityforbatchsizeNextBasicDispatchStrategy-12/13EQPAMaxbatchsize=4lotsRecipeARecipeARecipeANormallotOP3OP4OP5RecipeAOP2OP1CT=8hrTM=4Because??>4/(4+8)D-strategy:EQPAdon’twaitforanotherlot,dispatchcurrentlotExample:LotpriorityforoptimizebatchsizeNextBasicDispatchStrategy-13/13EQPARecipeARecipeARecipeARecipechangeneedtotake15minsetuptime.D-strategy:EQPAdispatchnextlotfolloweduppre-lot’srecipe.RecipeBRecipeBRecipeBVRecipeARecipeAExample:LotpriorityforsamerecipecontrolbackNewD-EngineSystemArchitectureissueSACSAC00~04Rule

ServerEXT/IFLotprtyfile1.5hrLotprtyfile1.5hrAC-RACLotdb:1minOhters:5minEQPTCSCRWhat’’sNextOPIWhat’’sNextFATX101PriorityServerLotPriorityTableBeupdatedevery15minsInquiryLotPriorityNewD-EngineWMB:LotListPEC:KeepPMCchangelot’’spriorityclassI/FKeepSectionPriorityFA:sortagainbyQ-Time=>sortingPEC:Step6Q-Timeissue…….FA:What’snextnormalrule:reserved,formbatch,nearbystocker(FA:mustkeepwherenextlogic)=>ByEQcharacteristic,ifnocapacityissue,don’tapplyWMBrulefeedforwardrule.Lotcheck(route,recipe,tool)PEC:AskMFGrunby““priority”TCSEQ:sortby“priority”toshowlotlistLog(forTargetHitRate)LotList先先紀(jì)錄在NewD-EngineWMBrule:WIP/MoveBalanceKeeptotallinebalanceandprocessthemostdelaylotfirst,tocompletemovetargetateachprocesssteps,finallyachievemaximumoutputandontimedelivery.SGSloadingbalanceruleEquipmentspriortoSGSoperationstepsmusthelptobalancetheloadingofSGSscannersforreducetheimpactofkeyscanner’sproductivity.GeneralRule:---appliedtoallequipmentgroupsFactorsWIPbalancen-HrMovetargetLotclassOutputcutlineDemandduedateRemaincycletimeSGSWIPSGSCapacityNextCR<1: meansthelotisdelayed,andhashigherprioritytobeprocessedCR>1: meansthelotisahead,andhaslowerpriorityIf>1LowHighNotyetCompleteSGSLoadingCriticalRatioH.LPushNormalHighNormalLowYesNotyetCompleteHighLowIf<=1LowHighNotyetCompleteSpecialLotSectionPriorityCutLinePriorityMoveTargetWIPBalanceSGSLoadingCriticalRatioGeneralrulesummary:SortingCriteriaCR1=(3/20-3/10)/11=0.91<1CR2=(3/22-3/10)/11=1.09>1Priority:L1>L2Now3/10Due13/20Due23/22L1L2StdCT=11dayYesRemainingQ-time<6hrsBackGeneralRule:SectionPrioritysettingManualsettingtoraiseorlowerpriorityoftheWIPincertainsectionrange.Byproduct,startOPcode,endOPcode,priority,quantityortimeperiodBykey#,startOPcode,endOPcode,priorityStartOPcodeGS-XLXX1WJ-WL4A1DA-DLLP1QE-DLKF3DF-SLS92QP-PLKX3WJ-WL4D1MZ-SLS11DP-DLCR1QW-PLK51EndOPcode256MDDRHigherpriorityFromWJ-WL4A1toDP-DLCR1Quantity800pcs(orfrom02/287:30to2/297:30)256MDDRSelectedsectionBackMonthendCTCutlineprioritythismonth,upcoming2monthcutline&UTTcutlineIfdelay,higherprioritya.today到月月底還差差2500pcsd.由由cutline往後後找到超超前一天天STD.CT的位位置Torunwhichlotfirst,accordingtoM1processb.Then把WIP由799往往前累加加到2500pcs為其其cutlinec.Checkcutlinelotdelaystatus1stmonth2ndmonth3ndmonthLotlist11/3031,000pcs12/3035,000pcs1/3033,000pcsGeneralRule:WIPBalance*ConsiderupstreamanddownstreamWIPofcertainmachine110799STDWIP10515911IAPWI3AP1IAPWI4BD1上游堆貨且下下游lowWIP的step優(yōu)先run因?yàn)長BratioofI4BD1>I3AP1,soI4BD1的的lot優(yōu)優(yōu)先run??Run幾個(gè)==>依Excelmovetarget????Run哪幾個(gè)==>依依CriticalRation-hrtarget在維持linebalance的情況下,去rundelay最嚴(yán)重重的lot*LineBalanceRatio=(UpStreamSTDWIPxWeight)(UpStreamActWIPxWeight)(DownStreamACTWIPxWeight)(DownStreamSTDWIPxWeight)X若沒有STDWIP，，則LBRatio=1，且出warningreport若DownStreamActWIP=0，則LBRatio=10000Largertheratio,higherthepriority往前16hr,往後16hrLineBalanceRatioUpstreamWeightWeightofI4BD1=(16-0)/16=1WeightofP4K31=(16-4)/16=0.75WeightofP4811=(16-4-8)/16=0.25WeightofW3WC1=(16-4-8-4)/16=0110799STDWIP10515813IAI3AP1IAI4BD1往前16hr,往後16hr1296484P4K31P4811W3WC1W41T1P481AP4KKACT=DownstreamWeightWeightofW4WT1=0.6WeightofP481A=0.3WeightofP4KKA=0.1*LineBalanceRatio=(UpStreamSTDWIPxWeight)(UpStreamActWIPxWeight)(DownStreamACTWIPxWeight)(DownStreamSTDWIPxWeight)XLBratioofI4BD1=defineupstreamanddownstreamstepandit’sweightHowmanystepforupstreamanddownstream?BaseonCycletime==>withinCT16hrDifferentWeightnearerstepmoreweight,farthersteplessweightWeight=(16hr–CT)/16若沒有STDCT，則先先暫訂8站，，且出warningreport；另外需需設(shè)計(jì)可供user設(shè)定定“16hrs與N站站”的UIPS:(600/60)/24*16=8WeightofWIPBalanceStepiWeight0.6DownStreamWIPUpStreamWIPCT=16hrsGeneralRule:MoveBalanceThroughputThethroughputratesofeachoperationstepshadbeendesignedtobeapproximatelyequivalent.Ingenerally,thethroughputofdifferentequipmentgroupsisinproportiontothenumberofprocessstepsusingthatequipmenttype.Operation:123456789Eqp.Type:ACBACADCA:unitthroughputrateofeachoperationEqp.Type:ABCDBackGeneralRule:MoveBalancen-HrMoveControlOPcoden-Hrtargetcontroltokeepproductionlinemovebalance,preventresourcesareallocatedoncertainoperationstep.Productcodetargetcontroltomakesureeachproducttargetcanbecompleted.FlowTargetbyTargetbyProductOP_CodeEQP_G1P1P2P3WIPTargetCR1<CR2<CR3P3P2P1OP_CodeTargetP1P2P3SpecialWithinDailyTargetOverTargetSHL/HL/Tier:WIPBalance n-HrtargetOP1OP2OP3OP1OP2OP3SHL/HLOP1OP2OP3OP1OP2OP3OP1OP2OP3n-HrTargetProd.TargetNextIncludestep4–SGSdispatchingStep0Step0.5Step0.7Step1Step2Step3Step4Loading>1Loading<=1BalancetheloadingonpxmachineNonbottleneckmachinemusthelptokeepbottleneckefficiencyPreventthebottleneckidlewhichisduetotheLoadingBias(SGS)SGSToolLoading=CTAvailableWIPCTAvailableCapacityStep4:SGSloading1FTGBS1BBL2BPX202PX203PX204PX205PX301PX202PX203PX204PX205PX301PX202PX203PX204PX205PX301PX202PX203PX204PX205PX301PX202PX203PX204PX205PX301PX202PX203PX204PX205PX30123day