Integrated circuit shop simulation for capacity planning and scheduling

Publisher Website
Google Scholar
Abstract
A large flow shop with cycling has been modeled with GASP II in an effort to study the effects of scheduling rules and capacity constraints. Consisting of multiple codes requiring 150-175 operations on 55 facilities, the shop, an integrated circuit line, was previously simulated in Fortran IV for the express purpose of determining the frequency of input messages to a shop information system. However, the Fortran IV model did not possess enough flexibility or efficiency for doing further analysis. By utilizing GASP II and its list processing techniques, shorter running times and implementations of scheduling algorithms could be achieved in a compact manner. The GASP II model is also capable of handling rework loops, yield distributions for each facility, priority assignments, and multiple channels per facility. Ultimately the model will have application for production scheduling in an on-line, real-time shop information system.

This publication has 0 references indexed in Scilit: