Input plan optimization system for the high mix low volume factory of the semiconductor manufacturing

For the purpose of semiconductor manufacturing TAT (Turn Around Time) reduction, throughput variability reduction for each machine has been requested. For this purpose, this research presents a new dispatching method by calculating number of input volume for each product automatically with a normalized index that quantifies production capability for each machine to manufacturing plan. As a result, the proposed method reduced arrival variability of the bottleneck machine by 33 to 51% to reduce TAT by 13 to 37%.