The Construction of Capacity Allocation Module for a TFT-LCD Cell Assembly Factory

• Main Authors: Ping-Hung Tsai, 蔡秉宏
• Other Authors: Shu-Hsing Chung
• Format: Others
• Language: zh-TW
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/43201065240246307738

碩士 === 國立交通大學 === 工業工程與管理系 === 91 === In recent years, the rapid growth in Liquid Crystal Display (LCD) has made market demand flourishing in today’s Taiwan, especially the TFT-LCD (Thin Film Transistor-Liquid Crystal Display). By the reason of its importance, the TFT-LCD cell assembly factory chooses“maximum throughput”as the target of the production planning. The meaning that capacity allocation is how to properly arrange the machine capacity to save setup frequency and to maximize system throughput simultaneously under the constraints of satisfying the product basic demand and of the machine usable capacity. This thesis proposes two capacity allocation models: the bottleneck workstation and the non-bottleneck workstation respectively. For bottleneck workstation, we construct a linear programming (LP) model which considers the demand of each product type, the batch process characteristics, the setup time and the machine capacity restrictions so as to maximize system throughput. The planning results contain the processing quantity and the production sequence at every time period. For non-bottleneck workstations, we also construct a linear programming model to minimize setup frequency for achieving the bottleneck’s throughput. Finally, we design a dispatch rule to help the operation of the non-bottleneck workstation match with the programming result. Experimental studies reveal that not only the capacity constrainted resource is fully utilized, but also the maximum throughput plan can be achieved through the proposed capacity allocation module.