Balancing work release based on both demand and supply variables

US6892106B2 · kind B2 · utility

Assignee

• TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD. · TW

Inventors

• Kan Wu · Hsinchu, TW
• Chiang-Chou Lo · Tianjin, CN
• Po-Chun Lai · Taoyuan, TW
• Hsu-Jen Chen · Hsinchu, TW
• Ming-Cheng Chien · Taichung, TW
• Wei-Jai Hung · Hsinchu, TW

Key dates

• Filing date: Mar 21, 2003
• Grant date: May 10, 2005
• Expiry date: Mar 21, 2023

Classification

• Technology area (CPC G): Physics
• CPC primary: G06Q10/087
• WIPO field: IT methods for management
• WIPO sector: Electrical engineering

Abstract

A systematic approach for generating a work release plan that considers both demand and supply variables. The approach comprises prioritizing scheduled lots in order of their critical ratios, estimating an initial daily release quota for the scheduled lots based on both pull and push requirements, and determining detailed capacity constraints for the manufacturing system. The approach further comprises testing whether the initial daily release quota complies with the detailed capacity constraints, and, if the detailed capacity constraints are violated, rearranging the lots in the initial daily release quota so that the detailed capacity constraints are met.