Designing a Multi-Site Production Planning System for Wafer Fabrication

因應目前半導體產業之發展，本文提出一多廠間的生產規劃模式，主要以企業整體的角度進行資源的規劃、訂單承接與分配。由於其以系統化的角度進行考量，因此可有效整合企業內部的作業資源，使企業內部的各單廠，不但可以專注生產該廠所專精之產品，在必要時更可發揮截長補短之功效。本文所提之多廠間生產規劃模式，主要根據企業所規劃各產品之產出目標、獲利目標及名廠之產能限制，以企業整體之獲利爲主要考量，針對各單廠的生產特性，發展一產出規劃模組，配合生產週期時間之推估，以求各單廠之產能獲得最佳配置，使各單廠能在符合企業整體利益與市場競爭力之前提下，規劃出其最適宜生產的產品別及產品比例。其次根據此產品別與其數量，發展訂單規劃模組，以有效的分配顧客訂單到各適宜之單廠，並推估一高可靠度之交期。根據實例驗證結果顯示，本文所構建之生產規劃模式，在產出規劃方面所得之最佳解，不但能兼顧企業整體之獲利，在生產績效方面，亦有良好之成效。而關於訂單允諾與分配機制，其亦有實行上之方便性與可行性。

關鍵字

多廠規劃；晶圓製造；生產規劃；週期時間

並列摘要

This paper proposes a production planning system for a semiconductor enterprise with multi-site fabs. Profit achievement of the whole enterprise and quick response mechanism for the due date setting are the major considerations of the proposed system. Two modules are included in this system. Throughput planning module considers the achievement of enterprise's profit, operating characteristics of each fab site and cycle time impact to each level of orders. With this module, the proper production quantity and product mix for each fab is derived so as to achieve enterprise's profit target. Then, job-order planning module is applied for order allocation and due date setting. Rapidly distributing customers' orders to each proper site and responding reliable due date to customers are the main functions of this module. A simulation experiment is performed to demonstrate the effectiveness and efficiency of the proposed system.

並列關鍵字

multi-site planning ； wafer fabs ； production planning ； cycle time

參考文獻

Chung, S. H.,W. L. Pearn, H. Y. Kang,C. C. Chen,W. T. Ke(2001).Cycle time estimation for wafer fabrication with multiple-priority orders.(Advanced Simulated Technologies Conference, The Society for Modeling and Simulation International, Seattle, WA).

Google Scholar

Chung, S. H.,W. L. Pearn, A. H. I. Lee,W. T. Ke.(2003).Job order releasing and throughput planning for multi-priority orders in wafer fabs.(International Journal of Production Research).

Google Scholar

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