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1、排貨流程及策略介紹 Dispatch flow and strategy Introduction,Content,Dispatch Purpose & strategy Terminology introduction Traditional manual dispatch operation flow Now Dispatching Engine operation flow D-Engines Benefit Basic dispatch strategy concept D-Engine architecture & default dispatch strategy OPI & D-
2、Engine performance demo,Dispatch Purpose & strategy,Modeling integrated dispatch rule in dispatching system in order to systematized. Purpose: Achieve monthly/quarterly production plan , create the maximum revenue reduce production cycle time , inventory On time delivery Strategy : Enhance line bala
3、nce Bottleneck machine utilization Move target control,Back,Terminology,IC flow Lot (晶圓批) WIP : Work in progress(在製品) Move (晶片移動量) T/R :Turn Rate (晶片週轉率) Cycle time(生產週期) Wafer In/Out(晶片投入量/晶片產出量) Production Plan (生產企劃) Lot priority class (晶圓批優先權),Back,IC flow,Wafer start,Wet,T/F,Diff,Photo,Etch,IMP
4、,Wafer out,CMP,Back,WP,Move definition,Move : 晶片移動量 Definition :,Pure Move = Effective Move.,Back,T/R Definition,T/R : 週轉率 Definition : T/R = Move / WIP T/R = Passed Steps count / Day Example :,Back,11/19 Fab 8A move = 677478 pcs , WIP = 88473 pcs Fab 8A T/R = 677478/ 88473= 7.66,Cycle time definiti
5、on,T/R Cycle time 例如 0.15 um 256MDDR TR/Day =6.5,total step count=620 T/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 產出 Out put cycle time = 31+31 =62 day In-line cycle time,OP1,flow,C/T 1 3 4,產出,投入,投入- 產出 = 1+3+4= 8 day OP1 - OP3= 1+3= 4 day,OP2,O
6、P3,Waiting time + Hold time+processing time+ transfer time,Back,Fab production Plan,Master production plan,Daily Avg input /output plan,Back,0.15um_S9*,0.165um_NS*,0.18um_N5*,0.18um_N5*,0.165um_NS*,0.15um_S9*,Lot priority class,Priority : 優先度 Priority class : 1 : Q-time short lots ie : WJ - RGP 2: U
7、QTAT Lots. : Super Hot lots 3: QTAT Lots: need to be hurry up. 4: STD lots need to be quick. 5: STD lots. 6: STD lots can be little late.,Back,Traditional manual dispatch operation flow,daily production action item personal experience report support,Next,Now D-Engine operation flow,User Data Setting
8、 Interface,Next,daily production action item personal experience report support,D-Engine Benefit,上線前,上線後,Back,Basic Dispatch Strategy-1/13,Example : Lot priority for priority class,EQP A,Lot2,Lot1,Ready,Lot3,Super hot lot,hot lot,Normal lot,Example : Lot priority for due date,EQP A,Lot2,Lot1,Ready,L
9、ot3,Ahead : 3.1 day,Ahead : 1.1 day,Delay : 1.1 day,Next,Basic Dispatch Strategy-2/13,EQP A,A,Ready,A,A,A,B,Target 400 pcs,Target 0 pcs,D-Strategy:EQP A dispatch lot have remaining target ,A type lot will be first dispatched .,Example : Lot priority for Move target,Next,Basic Dispatch Strategy-3/13,
10、Example : Lot priority for Q-time,EQP B,Lot2,Lot1,Ready,Lot3,Remain Q-time : 3.1 hrs,Remain Q-time : 2.3 hrs,Remain Q-time : 0.5 hrs,OP1,flow,Q-time Constraint 4 hr,OP2,OP3,EQP A,Ready,D-Strategy: EQP As WIP dispatch , will consider Q-WIP quantity if have over EQP Bs loading.,Next,Basic Dispatch Str
11、ategy-4/13,EQP C,EQP A,EQP B,Run,Down/PM/S.S/process Inhibit,B,B,A,A,A,Ready,Example : Lot priority for the next OP of EQPs status,Next,Basic Dispatch Strategy-5/13,EQP C,EQP A,EQP B,Run,Run,A,B,B,A,A,A,Ready,B,A,A,A,A,Assume that product A ,B process time are the same,Example : Lot priority for the
12、 same type of EQPs WIP,Next,Basic Dispatch Strategy-6/13,EQP C,EQP A,EQP B,Run,Run,A,B,B,A,A,A,Ready,B,A,A,A,A,Example : Lot priority for the following WIP / Standard WIP,12,1,D-Strategy:Lot type A will be dispatch first due to the WIP of EQP A is more smaller than standard WIP,Standard WIP,Next,Bas
13、ic Dispatch Strategy-7/13,EQP A,EQP B,AB,A,Ready,Ready,EQP A,EQP B,A,AB,Optimize,Run,Run,EQP A,EQP B,AB,A,Run,Ready,Bad,Example : Lot priority for EQPS utilization ,Next,Basic Dispatch Strategy-8/13,EQP A,EQP B,AB,Run,Run,EQP A,EQP B,Optimize,Run,EQP A,EQP B,Bad,V,V,V,V,V,Lot processing on load port
14、,Empty load port can reserve another lot,V,V,V,V,V,V,V,V,V,V,Example : Lot priority for assign lot balance,Next,Basic Dispatch Strategy-9/13,EQP A,V,C1,C2,Recipe A,Recipe A - C1 chamber Recipe B - C2 chamber,Optimize,Bad,EQP A,V,V,C1,C2,Recipe A,Recipe A,EQP A,V,V,C1,C2,Recipe A,Recipe B,Example : L
15、ot priority for chamber utilization ,Recipe A,Recipe B,Next,Basic Dispatch Strategy-10/13,EQP A,Max batch size=2 lots,Recipe A,Recipe A,Lot Xfer,Lot at Stk,Bad,Optimize,EQP A,Recipe A,Recipe A,EQP A,Recipe A,Recipe A,D-Strategy:EQP A Wait for another lot finished Xfer , then dispatch together,Exampl
16、e : Lot priority for batch size ,Next,Basic Dispatch Strategy-11/13,EQP A,Max batch size=4 lots,Recipe A,Recipe A,Recipe A,Recipe A,Recipe B,EQP A,Recipe A,Recipe A,Recipe A,Recipe A,Recipe B,Normal lot,Normal lot,Super hot lot,Normal lot,Example : Lot priority for batch size ,Next,Basic Dispatch Strategy-12/13,EQP A,Max batch size=4 lots,Recipe A,Recipe A,Recipe A,Normal lot
