Fuh-Der Chou

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This paper considers the scheduling problem of a single semiconductor batch-processing machine with job release times, non-identical job sizes, distinct due dates, and weights to minimize the total weighted tardiness. A batch-processing machine can process several jobs simultaneously as a batch, and the processing time of a batch is equal to the longest(More)
This paper addresses the problem of multiprocessor task-scheduling in a hybrid flow shop (HFS) problem to minimize the makespan. Due to the complex nature of an HFS problem, it is decomposed into the following two sequential decision problems: determining the job permutation in stage 1, followed by a decoding method to assign jobs into each machine in(More)
The dynamic scheduling problem of semiconductor burn-in operations is studied in this paper. The burn-in oven is a batch-processing machine and the size of each job is independent of the oven’s capacity. The processing time for each batch is represented by the largest processing time of the jobs in a batch. The objective function of this problem is to(More)
This paper considers the problem of scheduling n jobs on a single machine to minimize the total weighted completion time. Each job has a release time, a processing time and a weight. For the problem, we present a bi-direction branching scheme based on branch and bound method, called bi-direction branch and bound (BDBAD), which incorporates forward-driven(More)
This paper considers the scheduling problem observed in chip sorting operation of LED manufacturing, where each lot (job) with release time have four operations to be processed on a set of processing stages without pre-determined necessary route. Each stage has one and more identical sorting machines. The sorting machines scheduling problem can be treated(More)
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