建構最佳化訂單可允諾量分配模式-以IC設計公司為例

Modeling of the Optimal Allocation between ATP and CTP for Order Fulfillment - A Case Study of an IC Design House

吳正吉(Jeng-Ji Wu)

指導教授 ： 饒忻

中原大學/工學院/工業工程研究所/碩士(2007年)

https://doi.org/10.6840/cycu200700886

摘要

IC設計公司自 80 年代以來，『Fabless』成為創業的最佳路徑。IC設計業也是目前最具挑戰的產業之一。作為IC設計業者不僅要承擔Time to Market的挑戰，同時也必須承擔Time-To-Revenue的挑戰。對於IC設計業而言，一方面要快速推出產品搶佔市場，同時又要謹慎的檢視手上的成品庫存與半成品庫存、外包合作廠商的在製品的生產狀況，以及在晶圓代工廠投片的生產進度，以決定未來的投片與投料計劃面臨著IC設計業在管理上的特殊需求。
實務上業界處理有關訂單交貨日期與可交貨數量，通常以經驗法則並參考庫存水準回覆顧客訂單交貨日期與可交貨數量。此現象並未考慮對於個別訂單獲利因素與對顧客承諾重要性等考量。整合製造產能與物料供給限制可決定訂單可允諾數量與交期，根據此基礎可以決定訂單是否可以依照顧客要求承接與否。以本研究中所提出案例 S 公司，生管會依據訂單應交貨日期，產品批號等因素安排交貨並不考慮該訂單實際獲利因素，由生管人員依據過去經驗安排與確認訂單允諾數量。
本研究目的為尋求明確的訂單交貨日期與可交貨數量扮演訂單履行與庫存改善重要關鍵因素。如果有一個良好的訂單回覆系統與可交貨數量機制對於 IC設計公司而言，應可對 IC設計公司扮演對顧客關係與經營競爭力有一定之改善指標。本研究以實際案例與訂單獲利最佳化進行比較分析，透過最佳化訂單分配過程可使 IC 設計業者精確了解未交訂單履行預期結果與預期獲利差異，並依據本結果可以提前對顧客允諾結果進行預測與安排，同時可以針對無法滿足顧客訂單需求之狀況尋找替代方案。滿足顧客需求與提高 IC 設計業者的獲利與信譽。

關鍵字

訂單分配 ； CTP ； IC設計 ； ATP

並列摘要

Since 1980s, Fabless becomes the best way starting an IC design business. IC design industry is one of the most challenging industries these days. Besides the challenge of Time to Market, business owners of the IC design industry also need to shoulder the challenge of Time-To-Revenue. In order to seize the market share, they must promote their product quickly; at the same time, they have to carefully examine stock of finished and semi-finished goods, production status of the outsourcing cooperatives, production schedule of foundry output so as to decide future output and rope schedule which are special management demand faced by IC design industry.
By referring to rule of thumb and the stock level, company can respond to customers the date of delivery and quantity of delivery. This phenomenon does not take into consideration the profit-making factor of individual order and the importance of customer commitment. Integrated production capacity and material supply limitation determine the order quantity promised and the date of delivery. The company can decide if the order be accepted in accordance with customers’ demand.
The purpose of this study is to seek a definite delivery date and delivery quantity which plays an important role in order fulfillment and stock improvement. If there is a good order reply system and delivery quantity mechanism for IC design company, it should act as an indicator for certain improvement in customer relationship and business competitiveness. This research proceeds with comparative analysis of the actual cases and profit-making optimization of the order; through optimization of order allotment process, IC design business owner can precisely know the expected result of order fulfillment and the expected difference of profit-making. According to this finding, projections and arrangement can be made in advance for promising customer result. At the same time, for the situation of unfulfilled customer order demand, optional plan may be substituted for satisfying customer demand and increasing profit-making and reputation of IC design business.

並列關鍵字

IC design ； ATP ； Optimal allocation ； CTP

參考文獻

9. 林則孟, Enhance Order Promise WithATPAllocation Plan Consider Material And Capacity Constraint, 2005.

14. 郭瑞祥、蔣明晃、陳亞男、劉基全，多廠生產規劃之供應鏈決策支援模式，臺大管理論叢第十五卷第一期，pp49-74，2004 年 12月。

2. Jeong, B., Sim, S.B., Jeong, H.S., Kim, S.W., An available-to-promise system for TFT-LCD manufacturing in supply chain, 2002.

3. Makatsoris, H.C., Chang, Y.S., Richards, H.D., Design of a distributed order promising system and environment for a globally dispersed supply chain, 2004.

5. Oracle Global Promise Implementation & User Guide