排貨流程及策略介紹ppt課件

1、排貨流程及戰(zhàn)略介紹Dispatch flow and strategy IntroductionContentDispatch Purpose & strategyTerminology introductionTraditional manual dispatch operation flowNow Dispatching Engine operation flowD-Engines BenefitBasic dispatch strategy concept D-Engine architecture & default dispatch strategyOPI & D-Engine pe

2、rformance demo Dispatch Purpose & strategyModeling integrated dispatch rule in dispatching system in order to systematized.Purpose:Achieve monthly/quarterly production plan , create the maximum revenuereduce production cycle time , inventoryOn time deliveryStrategy :Enhance line balanceBottleneck ma

3、chine utilization Move target controlBack TerminologyIC flow Lot (晶圓批)WIP : Work in progress(在製品)Move (晶片移動(dòng)量)T/R :Turn Rate (晶片週轉(zhuǎn)率)Cycle time(生產(chǎn)週期)Wafer In/Out(晶片投入量/晶片產(chǎn)出量)Production Plan (生產(chǎn)企劃)Lot priority class (晶圓批優(yōu)先權(quán))Back IC flow Wafer startWetT/FDiffPhotoEtchIMPWafer outCMPBack WPMove definitio

4、nMove : 晶片移動(dòng)量Definition : Pure Move = Effective Move.Back T/R DefinitionT/R : 週轉(zhuǎn)率Definition : T/R = Move / WIPT/R = Passed Steps count / DayExample : Back 11/19 Fab 8A move = 677478 pcs , WIP = 88473 pcsFab 8A T/R = 677478/ 88473= 7.66Cycle time definitionT/R Cycle time例如 0.15 um 256MDDR TR/Day =6.5

5、,total step count=620T/R cycle time = 620/6.5= 95 day Out put Cycle time例如 Lot1 2003/07/01 07:30 投入 , 2003/09/01 07:30 產(chǎn)出Out put cycle time = 31+31 =62 dayIn-line cycle timeOP1 flowC/T 1 3 4產(chǎn)出投入投入- 產(chǎn)出 = 1+3+4= 8 dayOP1 - OP3= 1+3= 4 day OP2 OP3 Waiting time + Hold time+processing time+ transfer time

6、Back Fab production PlanMaster production planDaily Avg input /output planBack 0.15um_S9*0.165um_NS*0.18um_N5*0.18um_N5*0.165um_NS*0.15um_S9*Lot priority classPriority : 優(yōu)先度Priority class :1 : Q-time short lots ie : WJ - RGP2: UQTAT Lots. : Super Hot lots3: QTAT Lots: need to be hurry up.4: STD lots

7、 need to be quick.5: STD lots.6: STD lots can be little late.Back Traditional manual dispatch operation flow Flow MFG Move targetsupervisor daily production action item personal experience report support Group leader/TE other area supervisorOperatorQuery OPIMFG Manu Move TargetNext Now D-Engine oper

8、ation flowDispatching lot listOperator Select the first lotUser DataSetting InterfaceOperation PrtD-EngineDBLot informationEQP informationRecipe informationFlow information.supervisorNext daily production action item personal experience report support D-Engine Benefit上線前上線後現(xiàn)場(chǎng)派工 現(xiàn)場(chǎng)派工訊息不直接傳遞 現(xiàn)場(chǎng)派工依人的不同

9、而不 同,沒有一定的方式 現(xiàn)場(chǎng)派工訊息直接傳遞 現(xiàn)場(chǎng)派工有一定的方式產(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Back Basic Dispatch Strategy-1/13Example : Lot priority for priority class EQP ALot2Lot1ReadyLot3Super hot lothot lotNormal lotExample : Lot priority for due date EQP ALot2Lot1ReadyLot3Ahead : 3.1 dayAhead : 1.1 d

10、ayDelay : 1.1 dayNext Basic Dispatch Strategy-2/13EQP AAReadyAAABTarget 400 pcsTarget 0 pcsD-Strategy:EQP A dispatch lot have remaining target ,A type lot will be first dispatched . Example : Lot priority for Move targetNext Basic Dispatch Strategy-3/13Example : Lot priority for Q-time EQP BLot2Lot1

11、ReadyLot3Remain Q-time : 3.1 hrsRemain Q-time : 2.3 hrsRemain Q-time : 0.5 hrsOP1 flowQ-time Constraint 4 hr OP2 OP3 EQP AReadyD-Strategy:EQP As WIP dispatch , will consider Q-WIP quantity if have over EQP Bs loading.Next Basic Dispatch Strategy-4/13EQP CEQP AEQP BRunDown/PM/S.S/process InhibitBBAAA

12、ReadyExample : Lot priority for the next OP of EQPs status Next Basic Dispatch Strategy-5/13EQP CEQP AEQP BRunRunABBAAAReadyBAAAAAssume that product A ,B process time are the same Example : Lot priority for the same type of EQPs WIP Next Basic Dispatch Strategy-6/13EQP CEQP AEQP BRunRunABBAAAReadyBA

13、AAAExample : Lot priority for the following WIP / Standard WIP 121D-Strategy:Lot type A will be dispatch first due to the WIP of EQP A is more smaller than standard WIP Standard WIPNext Basic Dispatch Strategy-7/13EQP AEQP BABAReadyReadyEQP AEQP BAABOptimizeRunRunEQP AEQP BABARunReadyBadExample : Lo

14、t priority for EQPS utilization Next Basic Dispatch Strategy-8/13EQP AEQP BABRunRunEQP AEQP BOptimizeRunEQP AEQP BBadVVVVVLot processing on load port Empty load port can reserve another lot VVVVVVVVVVExample : Lot priority for assign lot balanceNext Basic Dispatch Strategy-9/13EQP AVC1C2Recipe AReci

15、pe A - C1 chamberRecipe B - C2 chamberOptimizeBadEQP AVVC1C2Recipe ARecipe AEQP AVVC1C2Recipe ARecipe BExample : Lot priority for chamber utilization Recipe ARecipe BNext Basic Dispatch Strategy-10/13EQP AMax batch size=2 lotsRecipe ARecipe ALot XferLot at StkBadOptimizeEQP ARecipe ARecipe AEQP ARec

16、ipe ARecipe AD-Strategy:EQP A Wait for another lot finished Xfer , then dispatch togetherExample : Lot priority for batch size Next Basic Dispatch Strategy-11/13EQP AMax batch size=4 lotsRecipe ARecipe ARecipe ARecipe ARecipe BEQP ARecipe ARecipe ARecipe ARecipe ARecipe BNormal lotNormal lotSuper ho

17、t lotNormal lotExample : Lot priority for batch size Next Basic Dispatch Strategy-12/13EQP AMax batch size=4 lotsRecipe ARecipe ARecipe ANormal lotOP3 OP4OP5Recipe AOP2 OP1 CT=8 hrTM=4Because 4/(4+8) D-strategy : EQP A dont wait for another lot , dispatch current lotExample : Lot priority for optimi

18、ze batch size Next Basic Dispatch Strategy-13/13EQP ARecipe ARecipe ARecipe ARecipe change need to take 15 min set up time.D-strategy : EQP A dispatch next lot followed up pre-lots recipe.Recipe BRecipe BRecipe BVRecipe ARecipe AExample : Lot priority for same recipe control backNew D-Engine System

19、Architecture issue SACSAC0004RuleServer EXT/IFLot prty file1.5hrLot prty file1.5hrAC-RACLotdb : 1minOhters : 5 minEQPTCSCRWhats NextOPIWhats NextFATX101PriorityServerLot Priority TableBe updated every 15 minsInquiry Lot PriorityNew D-EngineWMB : Lot ListPEC :Keep PMC change lots priority class I/F K

20、eep Section PriorityFA : sort again by Q-Time = sorting PEC : Step 6 Q-Time issue.FA : Whats next normal rule : reserved, form batch, nearby stocker (FA : must keep where next logic) =By EQ characteristic, if no capacity issue, dont apply WMB rule feed forward rule. Lot check (route, recipe, tool) P

21、EC : Ask MFG run by “priority TCS EQ : sort by “priority to show lot listLog (for Target Hit Rate)Lot List先紀(jì)錄在New D-Engine WMB rule : WIP/ Move BalanceKeep total line balance and process the most delay lot first, to complete move target at each process steps, finally achieve maximum output and on ti

22、me delivery. SGS loading balance ruleEquipments prior to SGS operation steps must help to balance the loading of SGS scanners for reduce the impact of key scanners productivity. General Rule:- applied to all equipment groupsFactorsWIP balance n-Hr Move target Lot class Output cut line Demand due dat

23、e Remain cycle time SGS WIP SGS CapacityNext CR 1:means the lot is ahead, and has lower priorityIf 1LowHighNot yetCompleteSGSLoadingCriticalRatioS.H.LH.LPushNormalHighNormalLowYesNot yetCompleteHighLowIf =1LowHighNot yetCompleteSpecialLotSectionPriorityCut LinePriorityMoveTargetWIPBalanceSGSLoadingC

24、riticalRatio General rule summary: Sorting CriteriaCR1= (3/20-3/10)/11 = 0.91 1Priority: L1 L2Now3/10Due13/20Due23/22L1L2Std CT=11 dayYesRemainingQ-time I3AP1, so I4BD1的 lot 優(yōu)先 run ? Run 幾個(gè) = 依 Excel move target ? ? Run 哪幾個(gè) = 依 Critical Ration-hr target 在維持 line balance的情況下, 去run delay 最嚴(yán)重的lot* Line

25、 Balance Ratio = (UpStream STD WIP x Weight )(UpStream Act WIP x Weight) (DownStream ACT WIP x Weight)(DownStream STD WIP x Weight )X假設(shè)沒有STD WIP，則LB Ratio=1，且出warning report假設(shè)DownStream Act WIP=0，則LB Ratio=10000Larger the ratio, higher the priority往前16hr, 往後16 hrLine Balance RatioUpstream WeightWeig

26、ht of I4BD1=(16-0)/16=1Weight of P4K31= (16-4)/16=0.75Weight of P4811=(16-4-8)/16=0.25Weight of W3WC1=(16-4-8-4)/16=0110799STD WIP10515813IAI3AP1IAI4BD1往前16hr, 往後16 hr1296484P4K31P4811W3WC1W41T1P481AP4KKACT=Downstream WeightWeight of W4WT1=0.6Weight of P481A= 0.3Weight of P4KKA=0.1* Line Balance Rat

27、io = (UpStream STD WIP x Weight )(UpStream Act WIP x Weight) (DownStream ACT WIP x Weight)(DownStream STD WIP x Weight )XLB ratio of I4BD1= define upstream and downstream step and its weightHow many step for upstream and downstream ?Base on Cycle time = within CT 16 hrDifferent Weight nearer step mo

28、re weight, farther step less weightWeight=(16hr CT) /16假設(shè)沒有STD CT，則先暫訂8站，且出warning report；另外需設(shè)計(jì)可供user設(shè)定“16 hrs與N站的UIPS: (600/60) / 24 * 16 = 8Weight of WIP BalanceStep iWeight10.90.10.40.6Down Stream WIPUp Stream WIPCT=16 hrsGeneral Rule: Move Balance ThroughputThe throughput rates of each operation

29、 steps had been designed to be approximately equivalent.In generally, the throughput of different equipment groups is in proportion to the number of process steps using that equipment type.Operation: 1 2 3 4 5 6 7 8 9Eqp. Type: A C B A C A D C A: unit throughput rate of each operationEqp. Type: A B C DBack General Rule