Bottleneck starvation indicators for shop floor control (semiconductor manufacturing process)

Abstract

A graphical tool for inventory and production control, currently in use at a major US semiconductor manufacturer, is presented. The tool supports a bottleneck starvation avoidance policy. Equations for calculating the bottleneck in a clean room manufacturing environment are presented. A new constraint which must be satisfied to ensure starvation avoidance is introduced. A technique for helping a manual decision process conform to this constraint is presented. Many graphs are given to illustrate the concepts.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>