TFT-LCD彩色濾光片廠CONWIP投料策略之研究

台灣為薄膜電晶體液晶顯示器 (Thin Film Transistor - Liquid Crystal Display, TFT-LCD)的重要產地，彩色濾光片(Color Filter, CF)是TFT-LCD中不可或缺的關鍵零組件。本研究以CF廠的投料與在製品控制為主題，應用系統模擬方法進行研究。面對產線在生產過程中可能因投料之問題及在製品無法有效管制，而造成產出績效不佳或成本提高之問題。本研究以CONWIP的概念進行生產規劃，在有限的生產資源及限制下提升績效，並利用AutoMod模擬軟體進行系統化的流程方法建構及分析模擬模式。藉由模擬產出的數據，計算較佳的投料及在製品控制的方式，探討其生產績效。研究結果顯示本研究發展之模式可有效提升產出量及降低在製品量與生產週期時間，並提供管理者作為決策參考之依據也可提供其他生產相關問題進行模擬分析。

關鍵字

在製品；投料；系統模擬；彩色濾光片； TFT-LCD

並列摘要

Order release and Work-in-Process (WIP) control are two important issues in production management. Overly frequent order release results in both high WIP and long cycle time. Several Constant WIP (CONWIP) policies for color filter fabs are proposed to control order release and WIP level. An AutoMod simulation model is developed based on real fabs and used to evaluate the performance of these CONWIP alternatives. On the basis of experimental design, simulation results indicate that Multi-CONWIP can increase throughput and decrease both cycle time and WIP. The best CONWIP policy is then applied to real fab for performance improvement.

並列關鍵字

Work-In-Process ； Simulation ； Color filter ； TFT-LCD ； Order release

參考文獻

Chen, J. C., Huang, P. B., Sun, C. J., Chao, K. J., Chao, G. C., Chien, J. W., Chen, C. C., Mo, C. N., Peng, T. W., Wei, Y. Y., Feng, C. H., Liu, Y. C. and Chiang, M. T., 2009. Simulation modeling of TFT-LCD color filter fab. International Display Workshops (IDW 2009), Miyazaki, Japan.

Chen, J. C., Su, L. H., Chen, C. C., Peng, T. W. and Chao, G. C., 2011. Release planning for color filter fabs based on iterative simulation, Journal of the Society for Information Display, 19(7), 480 – 487.

Cao, D. and Chen, M., 2005. A mixed integer programming model for a two line CONWIP-based production and assembly strategy. International Journal of Production Economics, 95(3), 3317-326.

Chao, Q., Sivakumar, A. I. and Gershwin, S. B., 2008. Impact of production control and strategy factors in semiconductor wafer fabrication. IEEE Transactions on Semiconductor Manufacturing, 21(3), 376-389.

Chen, J. C., and Chen, C. W., 2010. Capacity planning of serial and batch machines with capability constraints for wafer fabrication plants, International Journal of Production Research, 48(11), 3207-3223.

國際替代計量

TFT-LCD彩色濾光片廠CONWIP投料策略之研究

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