Browsing by Author "Chang, Sheng-Hung"

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Due-date performance improvement using TOC's aggregated time buffer method at a wafer fabrication factory
(2009-03-01)
Kuo, Tsai-Chi
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Chang, Sheng-Hung
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Huang, Shang-Nan
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工業工程與管理學系
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Department of Industrial Engineering and Management
Due-date performance is one of the most important production indexes for success utilized by wafer fabrication factories. Traditionally, the industry sets a Specific due-date tightness level and it dispatching rule based on the total processing time, the production capacity. pre-defined order release criteria and historical data, to ensure deliveries are made on-time. However, such policies typically do not solve the due-date performance problem at wafer fabrication factories, since the processes are highly complex. This investigation explores the due-date performance problem using the concept of the aggregated time buffer in critical chain project management (CCPM), which wits developed by Dr. Goldratt. A simulation model was constructed and the performance of the proposed method is evaluated based on four dispatching rules at a wafer fabrication factory. The findings reveal that applying aggregated time buffer control system improved the overall due-date control. in terms of on-time delivery rate, average tardiness, and variances in average tardiness and lateness, (C) 2008 Elsevier Ltd. All rights reserved.
Visualizing the Influence of Corporate Social Capital on IC Spin-offs
(2016-02)
Lee, Yen-Chun
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Lin, Grace T. R.
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Chang, Sheng-Hung
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Chou, C. J.
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Hsi, Pang-Hsiang
Social capital of a large parent company is a key enabler for corporate spin-offs. However, few studies have been conducted on the interactions between high-technology industries and social capital. A number of new integrated circuit (IC) spin-offs have been established worldwide over the past decade, but the success rate remains low. Hence; the purpose of this paper was to visualize the influence relationship between the dimensions of social capital, and to investigate the importance of social capital factors upon successful IC spin-offs. Data were collected on the number of Taiwanese IC design companies in which the spin-offs must have been operating for at least 5 years and analyzed using the decision-making trial and evaluation laboratory (DEMATEL) and analytic network process (ANP) methods. The results of DEMATEL analysis revealed that the "relational dimension", as the causal dimension, strongly influences all other dimensions, including itself. Second, the results of ANP analysis indicated that the "trust" and "identity" factors within the relational dimension were the most important. This study contributes to research on visualizing influence relationship between social capital dimensions and investigating importance of social capital factors upon successful corporate spin-offs by providing a holistic analysis, and adds knowledge about how to leverage the strengths and resources of a large parent company to increase the likelihood of success of corporate spin-offs.