標題: Mixing macro and micro flowtime estimation model: wafer fab example
作者: Tseng, TY
Ho, TF
Li, RK
工業工程與管理學系
Department of Industrial Engineering and Management
公開日期: 20-Jul-1999
摘要: Accurately predicting the order flowtime for a wafer fab is a critical task. Previous investigations involving flowtime estimation of the regression approach have extensively applied the macro flowtime estimation concept. The 'macro' flowtime estimation concept constructs only one aggregate model to estimate the flowtime as a whole. In contrast, the 'micro' flowtime estimation approach constructs an individual regression model for each stage of operation to estimate its individual flowtime. The cumulative order estimated flowtime is then the sum of the individual estimated operation flowtime. Each approach has its own merits and limitations. Therefore, in this study we examine the feasibility of mixing the macro and micro flowtime estimation models. Comparing the proposed model with a variety of macro and micro models reveals that the mixed macro and micro flowtime estimation model can achieve a balance between flowtime estimation error and model complexity.
URI: http://hdl.handle.net/11536/31200
ISSN: 0020-7543
期刊: INTERNATIONAL JOURNAL OF PRODUCTION RESEARCH
Volume: 37
Issue: 11
起始頁: 2447
結束頁: 2461
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