TY - GEN
T1 - Modeling and schedulability analysis of single-arm cluster tools with wafer residency time constraints using Petri net
AU - Wu, Naiqi
AU - Chu, Chengbin
AU - Chu, Feng
AU - Zhou, Meng Chu
PY - 2008
Y1 - 2008
N2 - With wafer residency time constraints for some wafer fabrication processes, the schedulability and scheduling problems of cluster tools are still open. Addressing these issues, this paper conducts their schedulability analysis. A Petri net (PN) model, called resource-oriented PN (ROPN), is developed for the system. This model describes when the robot should wait and a robot wait is modeled as an event in an explicit way. Based on this model, for the first time, we present the necessary and sufficient conditions under which a single-arm cluster tool with residency time constraints is schedulable, which can be checked analytically. Meanwhile, an analytical scheduling algorithm is developed to find an optimal periodic schedule if it is schedulable.
AB - With wafer residency time constraints for some wafer fabrication processes, the schedulability and scheduling problems of cluster tools are still open. Addressing these issues, this paper conducts their schedulability analysis. A Petri net (PN) model, called resource-oriented PN (ROPN), is developed for the system. This model describes when the robot should wait and a robot wait is modeled as an event in an explicit way. Based on this model, for the first time, we present the necessary and sufficient conditions under which a single-arm cluster tool with residency time constraints is schedulable, which can be checked analytically. Meanwhile, an analytical scheduling algorithm is developed to find an optimal periodic schedule if it is schedulable.
UR - http://www.scopus.com/inward/record.url?scp=49249113466&partnerID=8YFLogxK
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U2 - 10.1109/ICNSC.2008.4525188
DO - 10.1109/ICNSC.2008.4525188
M3 - Conference contribution
AN - SCOPUS:49249113466
SN - 9781424416851
T3 - Proceedings of 2008 IEEE International Conference on Networking, Sensing and Control, ICNSC
SP - 84
EP - 89
BT - Proceedings of 2008 IEEE International Conference on Networking, Sensing and Control, ICNSC
T2 - 2008 IEEE International Conference on Networking, Sensing and Control, ICNSC
Y2 - 6 April 2008 through 8 April 2008
ER -