Title :
Dynamic scheduling rule selection for fab operations
Author :
Hsieh, Bo Wei ; Chang, Shi Chung ; Chen, Chun Hung
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
In this paper, we exploit the speed of the ordinal optimization (OO)-based simulation tool designed by Hsieh et al (Proc. Int. Symp. Semicond. Manuf., pp. 53-56, 1999) to investigate dynamic selection of scheduling rules a when significant amount of WIP is held back due to engineering causes and when major machine failures occur. Four prominent dispatching rules, FSVCT, FIFO, LDF, and OSA, combined with the workload regulation release policy constitute 256 rule options over a 4-week horizon, where the dispatching rule may change weekly. The rule options are evaluated and ranked by the OO-based simulation tool under the performance index of per layer mean cycle time and throughput rate. Results clearly indicate that dispatching rules should be changed dynamically to handle these unusual events
Keywords :
integrated circuit manufacture; manufacturing resources planning; materials handling; optimisation; production control; semiconductor process modelling; 4 wk; FIFO dispatching rule; FSVCT dispatching rule; LDF dispatching rule; OO-based simulation tool; OSA dispatching rule; WIP; dispatching rule; dispatching rules; dynamic scheduling rule selection; dynamic selection; machine failures; ordinal optimization-based simulation tool; per layer mean cycle time; performance index; rule options; rule options evaluation; scheduling rules; throughput rate; wafer fab operations; workload regulation release policy; Design engineering; Dispatching; Dynamic scheduling; Libraries; Modeling; Optimization methods; Performance analysis; Production; Systems engineering and theory; Throughput;
Conference_Titel :
Semiconductor Manufacturing Technology Workshop, 2000
Conference_Location :
Hsinchu
Print_ISBN :
0-7803-6374-4
DOI :
10.1109/SMTW.2000.883097
