Wafer sojourn time fluctuation analysis of time-constrained dual-arm cluster tools with wafer revisiting and activity time variation
A robotic cluster tool involves many activities whose time is subject to some disturbance,
thus leading to the activity time variation. It results in wafer sojourn time fluctuation in a …
thus leading to the activity time variation. It results in wafer sojourn time fluctuation in a …
Petri net modeling and wafer sojourn time analysis of single-arm cluster tools with residency time constraints and activity time variation
With wafer residency time constraints, it is crucial to schedule a cluster tool in semiconductor
fabrication such that the wafer sojourn time in a processing module is in a given range …
fabrication such that the wafer sojourn time in a processing module is in a given range …
Modeling, analysis and control of dual-arm cluster tools with residency time constraint and activity time variation based on Petri nets
Because of residency time constraints and activity time variation of cluster tools, it is very
difficult to operate such integrated semiconductor manufacturing equipment. This paper …
difficult to operate such integrated semiconductor manufacturing equipment. This paper …
Analysis of wafer sojourn time in dual-arm cluster tools with residency time constraint and activity time variation
When scheduling cluster tools under wafer residency time constraints, wafer sojourn time in
a processing module should be carefully controlled such that it is in a permissive range …
a processing module should be carefully controlled such that it is in a permissive range …
Reducing wafer delay time by robot idle time regulation for single-arm cluster tools
Nowadays, wafer fabrication in semiconductor manufacturing is highly dependent on cluster
tools. A cluster tool is equipped with several process modules (PMs) and a wafer handling …
tools. A cluster tool is equipped with several process modules (PMs) and a wafer handling …
Robust scheduling of time-constrained dual-arm cluster tools with wafer revisiting and activity time disturbance
Wafer revisiting and residency time constraints complicate the scheduling problem of cluster
tools in semiconductor manufacturing. Random disturbance to the activity time in operating a …
tools in semiconductor manufacturing. Random disturbance to the activity time in operating a …
Schedulability analysis and optimal scheduling of dual-arm cluster tools with residency time constraint and activity time variation
With wafer residency time constraint of cluster tools in semiconductor manufacturing, activity
time variation can make an originally feasible schedule infeasible. Thus, it is difficult to …
time variation can make an originally feasible schedule infeasible. Thus, it is difficult to …
Response policies to process module failure in single-arm cluster tools subject to wafer residency time constraints
In semiconductor manufacturing, wafer residency time constraints make the scheduling
problem of cluster tools complicated. A process module (PM) in cluster tools is prone to …
problem of cluster tools complicated. A process module (PM) in cluster tools is prone to …
Petri net-based scheduling of single-arm cluster tools with reentrant atomic layer deposition processes
For some wafer fabrication processes in cluster tools, eg, atomic layer deposition (ALD),
wafer revisiting is required. Typically, in such processes, wafers need to visit two …
wafer revisiting is required. Typically, in such processes, wafers need to visit two …
Optimal one-wafer cyclic scheduling of time-constrained hybrid multicluster tools via Petri nets
Scheduling a multicluster tool with wafer residency time constraints is highly challenging yet
important in ensuring high productivity of wafer fabrication. This paper presents a method to …
important in ensuring high productivity of wafer fabrication. This paper presents a method to …