TY - GEN
T1 - A novel scheduling approach to dual-arm cluster tools with wafer revisiting
AU - Wu, Nai Qi
AU - Zhou, Meng Chu
PY - 2012
Y1 - 2012
N2 - It has been shown that, for dual-arm cluster tools with wafer revisiting, a swap strategy may not be optimal. To improve the performance of such a system, a Petri net model is developed in this work. Based on it, dynamical behavior of the wafer production process is analyzed. Then, two new scheduling methods called 2-wafer cyclic schedules are presented. Cycle time analysis shows that, under some conditions, the performance obtained by the 2-wafer cyclic schedules is better than that obtained by a swap strategy. Thus, the methods presented in this paper and the swap strategy can be used to complement each other in optimally scheduling dual-arm cluster tools with wafer revisiting. Illustrative examples are presented to show the results.
AB - It has been shown that, for dual-arm cluster tools with wafer revisiting, a swap strategy may not be optimal. To improve the performance of such a system, a Petri net model is developed in this work. Based on it, dynamical behavior of the wafer production process is analyzed. Then, two new scheduling methods called 2-wafer cyclic schedules are presented. Cycle time analysis shows that, under some conditions, the performance obtained by the 2-wafer cyclic schedules is better than that obtained by a swap strategy. Thus, the methods presented in this paper and the swap strategy can be used to complement each other in optimally scheduling dual-arm cluster tools with wafer revisiting. Illustrative examples are presented to show the results.
KW - Petri nets
KW - cluster tool
KW - scheduling
KW - semiconductor manufacturing
UR - http://www.scopus.com/inward/record.url?scp=84872396050&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84872396050&partnerID=8YFLogxK
U2 - 10.1109/ICSMC.2012.6377897
DO - 10.1109/ICSMC.2012.6377897
M3 - Conference contribution
AN - SCOPUS:84872396050
SN - 9781467317146
T3 - Conference Proceedings - IEEE International Conference on Systems, Man and Cybernetics
SP - 1213
EP - 1218
BT - Proceedings 2012 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2012
T2 - 2012 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2012
Y2 - 14 October 2012 through 17 October 2012
ER -