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Qinghua Zhu

3 accepted papers

2025

Reinforcement Learning-Based Scheduling for Dual-Arm Cluster Tool with Multifunctional Process Modules

IROS 2025

Cluster tools are vital in semiconductor manufacturing, where multifunctional process modules (MPMs) enhance flexibility and efficiency. However, variable MPMs and processing time in dual-arm cluster tools (DACTs) complicate scheduling, as variable MPM allocation patterns yield distinct productivity

Cited by 0SourceScholar
2022

Optimally Scheduling Dual-Arm Multi-Cluster Tools to Process Two Wafer Types

RA-L 2022

To satisfy the requirements of high-mix integrated-circuit chip production, multiple wafer types are grouped into a lot to be fabricated concurrently in a multi-cluster tool system. However, the existing studies do not solve the scheduling problem of multi-cluster tools with multiple wafer types bei

Cited by 27SourceScholar
2017

Close-down process scheduling of wafer residence time-constrained multi-cluster tools

ICRA 2017poster

Semiconductor manufacturing industry has adopted multi-cluster tools as wafer fabrication equipment that is extraordinarily pricey but highly attractive owing to their higher productivity than single cluster tools can achieve. A challenging issue is how to schedule these tools. It is especially diff…

Cited by 2SourceScholar