Applying just-in-time in a wafer fab: a case study

Abstract
The successful application of the just-in-time (JIT) manufacturing management philosophy within a wafer fab photoresist wet chemistry area is described. The JIT techniques that were applied included lot-size reduction, setup-time reduction, layout changes for improved work flow, and improved operator flexibility. These set the stage for the implementation of a demand-pull system that resulted in significant decreases in cycle times as well as corresponding decrease in inventory levels. Aspects related to quality improvement as well as other long-term issues are also discussed.

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