Method for autonomic control of a manufacturing system
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United States of America Patent
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Dec 19, 2006
Grant Date -
Jul 6, 2006
app pub date -
Jan 5, 2005
filing date -
Jan 5, 2005
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Disclosed is a method of controlling a manufacturing system. The invention automatically monitors current levels of partially completed products waiting to be processed by a tool (or group of tools) and determines whether the current levels exceed a predetermined limit. If the current levels do exceed the predetermined limit, the invention performs an optimization process. However, if the current levels do not exceed the predetermined limit, the invention performs a dispatching process. In this dispatching process, the invention automatically projects future levels of partially completed products that will be supplied to the tool to identify a future work-in-process (WIP) bubble. The WIP bubble occurs when larger than normal amounts of partially completed products are supplied to the tool. The invention automatically adjusts the operating parameters of the tool based upon both the current levels and the future levels.
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