| Summary: | 碩士 === 國立臺北科技大學 === 工業工程與管理研究所 === 95 === The semiconductor assembly factory in Taiwan is a global manufacturer of IC, the bottleneck in process is mold station. To control the cycle time performance, the dispatching rule is based on FIFO, while in the mold station the highest priority gives to job with the highest accumulate cycle time (ACT). Among the cycle time related performance indicators, the company pays much attention to cycle time 95% tail. A simulation model is built to test the dispatching rules, which are commonly used in researches and developing recently. To aim at cycle time reduction and the flexible flow shop production type, the fluctuation smoothing policy and WTNQ series dispatching rule is being tested. The result shows that the WTNQ rules perform well in cycle time reduction, while the ACT rule and FSVCT rule perform well in cycle time variance reduction. The ACT rule is also better than other dispatching rule in cycle time 95%tail performance.
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