Adjustment Mechanism for Multifunctional Machines
| Autor: | Chih-Yuan Chou, 周志遠 |
|---|---|
| Rok vydání: | 2003 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 91 Most of the machines are multifunctional in IC foundries. A multifunctional machine can be reset to maximize the moves of the bottleneck machine group. Such machine reset up problem is called as multifunctional machines adjustment problem. In this research, we develop an approach to solve the problem mentioned above. The purpose of this research is to maximize the moves of the bottleneck machine group under the constraints of non-decreasing the local moves of some other machine groups with high degree of utilization. We modify the approach proposed by Pu. The steps of the approach proposed in this research are stated as follows: (1) we identify the bottleneck machine group; (2) we search the alternative machine groups which can be reset up and become a member in the bottleneck machine group; (3) we develop a multi-criteria decision making model to determine the priorities of these alternative machine groups to become a member in the bottleneck machine groups; and (4) we add one of the machine in the alternative machine group with the highest priority to the bottleneck machine group. Then the new machine mix configuration is proposed. Further, we use a near real IC foundry example to illustrate and to verify the performance of the proposed approach. The simulation results show that the aim of this research can be easily obtained by the proposed approach. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
| Externí odkaz: |
|