TY - GEN
T1 - Scheduling of single-arm multi-cluster tools to achieve the minimum cycle time
AU - Zhu, Qinghua
AU - Wu, Naiqi
AU - Qiao, Yan
AU - Zhou, Mengchu
PY - 2013
Y1 - 2013
N2 - It is very challenging to schedule a multi-cluster tool to maximize its throughput. This work studies its one-wafer optimal periodic schedule. It is found that the key to schedule it is to determine its robots waiting times. A resource-oriented Petri net model is developed for it such that the robot waiting times are well modeled. Based on the model, optimality conditions are derived and the scheduling problem is reduced to the determination of robot waiting times. By the derived conditions, an optimal one-wafer optimal periodic schedule for a multi-cluster tool can be obtained by scheduling its individual cluster tools one by one. Then, a highly efficient algorithm is proposed to compute it for an entire multi-cluster tool.
AB - It is very challenging to schedule a multi-cluster tool to maximize its throughput. This work studies its one-wafer optimal periodic schedule. It is found that the key to schedule it is to determine its robots waiting times. A resource-oriented Petri net model is developed for it such that the robot waiting times are well modeled. Based on the model, optimality conditions are derived and the scheduling problem is reduced to the determination of robot waiting times. By the derived conditions, an optimal one-wafer optimal periodic schedule for a multi-cluster tool can be obtained by scheduling its individual cluster tools one by one. Then, a highly efficient algorithm is proposed to compute it for an entire multi-cluster tool.
UR - http://www.scopus.com/inward/record.url?scp=84887269835&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84887269835&partnerID=8YFLogxK
U2 - 10.1109/ICRA.2013.6631075
DO - 10.1109/ICRA.2013.6631075
M3 - Conference contribution
AN - SCOPUS:84887269835
SN - 9781467356411
T3 - Proceedings - IEEE International Conference on Robotics and Automation
SP - 3555
EP - 3560
BT - 2013 IEEE International Conference on Robotics and Automation, ICRA 2013
T2 - 2013 IEEE International Conference on Robotics and Automation, ICRA 2013
Y2 - 6 May 2013 through 10 May 2013
ER -