Priority rules for job shops with weighted tardiness costs
Management Science
Batching and scheduling jobs on batch and discrete processors
Operations Research
Efficient algorithms for scheduling semiconductor burn-in operations
Operations Research
Batching and scheduling in FMS hubs: flow time considerations
Operations Research
The Batch Loading and Scheduling Problem
Operations Research
Computers and Operations Research
Computers and Operations Research
Throughput maximization of real-time scheduling with batching
ACM Transactions on Algorithms (TALG)
On the complexity of bi-criteria scheduling on a single batch processing machine
Journal of Scheduling
Tabu search heuristic for two-machine flowshop with batch processing machines
Computers and Industrial Engineering
Heuristic based scheduling system for diffusion in semiconductor manufacturing
Winter Simulation Conference
A comparison of mip-based decomposition techniques and VNS approaches for batch scheduling problems
Winter Simulation Conference
Proceedings of the Winter Simulation Conference
Hi-index | 0.01 |
The diffusion step in semiconductor wafer fabrication is very time consuming, compared to other steps in the process, and performance in this area has a significant impact on overall factory performance. Diffusion furnaces are able to process multiple lots of similar wafers at a time, and are therefore appropriately modeled as batch processing machines with incompatible job families. Due to the importance of on-time delivery in semiconductor manufacturing, we focus on minimizing the total weighted tardiness in this environment. The resulting problem is NP-Hard, and we decompose it into two sequential decision problems: assigning lots to batches followed by sequencing the batches. We develop several heuristics for these subproblems and test their performance.