Title :
Product mix planning in semiconductor foundry manufacturing
Author_Institution :
Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
Since a semiconductor foundry plant manufactures a wide range of memory and logic products using the make-to-order business model, the product mix is an important production decision. This paper first describes the characteristics of the product mix planning problem in foundry manufacturing that are attributable to the long flow time and queuing network behaviors. The issues of time bucket selection, mix optimization and bottleneck-based planning are next addressed. A decision software system based on integer linear programming techniques and a heuristic procedure have been implemented for mix planning. It was determined that the suitable time bucket of planning is either one week or one month and the lead-time offset factor should be included in the logic of workload calculation. This paper also presents various facets of product mix decisions and how they should be integrated with operations management
Keywords :
computer aided production planning; decision support systems; integrated circuit manufacture; linear programming; manufacturing resources planning; bottleneck-based planning; decision software system; foundry manufacturing; heuristic procedure; integer linear programming techniques; lead-time offset factor; logic products; long flow time behavior; make-to-order business model; memory products; mix optimization; mix planning; operations management; planning time bucket; product mix; product mix decisions; product mix planning; production decision; queuing network behavior; semiconductor foundry manufacturing; semiconductor foundry plant; time bucket selection; workload calculation; Aggregates; Capacity planning; Cost accounting; Foundries; Integer linear programming; Logic; Portfolios; Process planning; Production; Semiconductor device manufacture;
Conference_Titel :
Semiconductor Manufacturing Technology Workshop, 2000
Conference_Location :
Hsinchu
Print_ISBN :
0-7803-6374-4
DOI :
10.1109/SMTW.2000.883089