An Integrated Production Scheduling and Personal Assignment Model - A Case Study on TFT-LCD Cell Process

• Main Authors: Li-Hsiu Tseng, 曾豊修
• Other Authors: Deng-Maw Tsai
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/08100888209298513698

碩士 === 國立屏東科技大學 === 工業管理系所 === 98 === The main production processes of TFT-LCD (thin film transistor- liquid crystal display) can be divided array, cell, and module processes. The cell process is the most complicated and important process. Due to the fast-developing of new manufacturing technology and the shortening of product lift cycle, the production system of TFT-LCD is changed into make-to-order (MTO) from make-to-stock (MTS). In a MTO system, how to perform the production planning for the cell process becomes a very important issue. In this study, an integrated production scheduling and personal assignment (IPSPA) model is proposed for the cell process. Firstly, we calculate the capacity requirements for each work station according to customer orders, and distinguish the bottleneck of the production system. Secondly, an ant colony optimization (ACO) based heuristic is presented to schedule the customer orders. The production schedule then serves as the basis for man-power planning. Finally, we propose a linear programming model to perform personal assignment. In order to test the applicability of the IPSPA model, an industrial data is used to demonstrate the performance of the proposed model. Computational results show that the IPSPA model offers a substantial rising in the capacity efficiency and a significant savings in the manpower demand. The results obtained herein can provide managers with further insight into the systematic analysis and potentials for the cost effectiveness in realistic applications.