Simulation-based performance assessment of production planning formulations for semiconductor wafer fabrication

In this paper we compare two production planning formulations in a rolling horizon setting. The first is based on fixed lead times that are a multiple of the period length, while the second uses non-linear clearing functions. A scaled-down simulation model of a wafer fab is used to assess the performance of the two formulations. We examine the impact of the planning window and period length on the performance of the production planning formulations. The performance advantage of clearing functions that is observed in a static setting can be also observed in a rolling horizon setting.