2010 年 76 巻 772 号 p. 3206-3211
Recent semiconductor manufacturing feature is high-product-mix and small-lot-size production, and the productivity becomes much worse owing to the short life cycle of production goods and the frequent change in the specification and demand within a short time period. Therefore, a solution method to optimize the efficiency, cost, and TAT (Turn Around Time) in a comprehensive way is indispensable. In this paper we applied the Lagrangian Decomposition and Coordination Method, which is the well-known cooperative scheduling methods, into an abstracted model of the actual Semiconductor production line, which has a feature of a re-entrant flow model, and studied the characteristic concerning the utilization of the model.