This paper presents the development and implementation of Motorola's Graphical Manufacturing Monitoring System (GraMMS) that provides real-time graphical monitoring of manufacturing data including work-in-process (WIP), equipment, throughput, and dispatch rankings. GraMMS consists of four main applications namely; Dynamic Dispatch, WIP Monitoring System (WMS), Equipment Management System (EMS), and Throughput Monitoring System (TMS). GraMMS provides Motorola semiconductor wafer fabs with instant data-driven decision support and trend analysis as well as a short-interval scheduler via discrete-event simulation. The Dynamic Dispatch system is a combination of simulation and heuristics based on concepts from the theory of constraints. This competitive advantage increases output, decreases cycle time, and improves resource utilization.
[1]
N. G. Pierce,et al.
Graphical manufacturing monitoring system
,
1997,
1997 IEEE/SEMI Advanced Semiconductor Manufacturing Conference and Workshop ASMC 97 Proceedings.
[2]
E. H. Bowman.
THE SCHEDULE-SEQUENCING PROBLEM*
,
1959
.
[3]
S. S. Panwalkar,et al.
A Survey of Scheduling Rules
,
1977,
Oper. Res..
[4]
G. Rand.
Sequencing and Scheduling: An Introduction to the Mathematics of the Job-Shop
,
1982
.
[5]
William L. Maxwell,et al.
Theory of scheduling
,
1967
.
[6]
Alan S. Manne,et al.
On the Job-Shop Scheduling Problem
,
1960
.