Semiconductor Supply Chain Monitoring Schemes for Echelon WIP Inventory
Date Issued
2005
Date
2005
Author(s)
Chuang, Kuei-Hui
DOI
zh-TW
Abstract
The semiconductor industry with its high capital investment and hi-tech nature faces fierce competition and quick environment changes. The semiconductor supply chain has a vertical disintegration character, and each member of supply chain chases for different goals which leads to the inefficiency of supply chain performance and the difficulty in monitoring it. Therefore, in order to upgrade the service levels and improve the performance of the whole supply chain, it is necessary for all members to share their information and synchronize their operations.
Inventory control has been an important issue in supply chain management. This research attempts to develop a semiconductor supply chain monitoring scheme based on the concept of echelon WIP inventory. The first step in the proposed scheme is to construct a two-echelon model with the goal of minimizing the echelon WIP inventory control limits under a target service level. Next, this model is extended to a multi-echelon model through a backward iteration algorithm. The proposed monitoring scheme has been validated through simulation study.
According to the validation results, we conclude that: (1) The proposed scheme can be used effectively to derive the multi-echelon WIP inventory limits; (2) Compared to the traditional stage-based inventory monitoring scheme, the proposed echelon-based monitoring scheme can obtain a higher service level under the same inventory levels.
Subjects
半導體供應鏈
監控機制
多層級在製存貨
Semiconductor Supply Chain
Monitoring Schemes
Multi-Echelon WIP Inventory
Type
thesis
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