Data processing: generic control systems or specific application – Specific application – apparatus or process – Product assembly or manufacturing
Reexamination Certificate
2007-01-16
2009-02-03
Barnes Bullock, Crystal J (Department: 2121)
Data processing: generic control systems or specific application
Specific application, apparatus or process
Product assembly or manufacturing
C700S099000, C700S103000, C700S175000
Reexamination Certificate
active
07487002
ABSTRACT:
By determining a metric for tool utilization in a manufacturing environment on the basis of tool-specific characteristics and a probability distribution for the transport capability of an automated material handling system, the influence of the transport system on the tool performance may be effectively determined. For this purpose, an average delay caused by the automated material handling system may be iteratively calculated on the basis of a respective required carrier exchange time, which depends on tool- and process-specific characteristics. From the corresponding average delay, an appropriate metric, such as a utilization loss factor, may be determined.
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Advanced Micro Devices , Inc.
Barnes Bullock Crystal J
Williams Morgan & Amerson
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