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MES (Manufacturing Execution System) is a computer application system that integrates all relevant real-time information along every step in a manufacturing process. MES functions include data collection, WIP (Work in Process) tracking, material management, inventory management, exception management, and quality management etc.

IC manufacturing has over 300 fabrication processes, prohibitively expensive equipment, a large variety of products, and short product life cycle. MES, therefore, is essential for IC foundry manufacturers for gathering real-time production line information, supporting manufacturing decision making, and increasing manufacturing efficiency.

Taiwan IC manufacturers have invested in MES over the past few years. For this study we interviewed managers from Taiwan’s leading IC manufacturers responsible for implementing MES systems. Their MES adoption experiences and suggestions could benefit other IC manufacturers as well as manufacturers of other industry sectors.