具外包特性之代工廠的預約產能定價

Abstract

在半導體供應鏈中，積體電路(integrated circuits)經由IC設計公司設計後，必須交由晶圓代工廠製造所設計的產品，故代工廠產能的分配是一重要議題。而產能分配又受市場需求的影響，IC設計公司為了避免缺貨，往往將真實需求扭曲。為了解決這樣的問題，本研究提出IC設計公司必須先支付預約金才得以預約產能的概念，並藉由數學模型，描述代工廠透過自製產能，以及再向產能外包公司預約產能的機制，來準備IC設計公司所需求的產能。藉此模型求解代工廠預約產能計價問題，並決定適當的預約外包產能數量，以達到本身的期望利潤最大化。

A semiconductor foundry fab is a factory that manufactures integrated circuits (IC), designed by a large number of customers (called IC design houses). We consider a foundry fab that requires the customers to pay a booking fee for reserving an amount of capacity. And the capacity reserved for the customers can be either provided by the fab itself or by outsourcing capacity from other fabs. The outsourcing activity is implemented by subsequently paying booking fees to the capacity-providers. This paper develops a method to determine the optimum booking price for the foundry fab in order to maximize its profit. The proposed capacity-booking paradigm and solution method help resolving the information distortion problem in demand forecasting.