An Application of TOC for Production Planning and Control in Wafer Fabrication Factories
| Autor: | Yung-Chen Wang, 王永珍 |
|---|---|
| Rok vydání: | 2004 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 93 In factories with enormous amount facilities investment, more managers face the perplexity from traditional cost accounting. Achieving higher utilization for all machines is one of the production key performance indices, so managers are asked to increase WIP level to enlarge output. Actually the higher WIP level cannot guarantee for more output. But we must suffer from longer cycle time and lower flexibility of manufacture, even quality. Therefore, the actual output do not get the relative increase. Based on every factory has its own capacity constraint resource, this paper thinks that to keep highest utilization and production smooth of the bottleneck machines will maximize output. The production goal of non-bottleneck machines is to meet the demand of bottleneck machines, and it can reduce WIP level and cycle time. This paper applies TOC concept in developing an order releasing and dispatching rule model to reach three purposes: maximize output, reduce cycle time and increase on time delivery. From the results by implementing in a Fab, it indicates that the developed model does have good performance in the three purposes of this research. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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