Method for preparing manufacturing plan and method for manufacturing semiconductor products using the manufacturing plan
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United States of America Patent
Stats
-
Mar 16, 2004
Grant Date -
May 15, 2003
app pub date -
May 1, 2002
filing date -
Nov 12, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for preparing a manufacturing plan for a manufacturing factory having multiple equipments and charged with multiple processes. The equipment is assigned to the processes to determine an operation pattern for a day. A load of each process is allotted among the equipment assigned to the process. Total load of each equipment is calculated by summing the allotted load. A capability index of each equipment is determined by dividing capacity of the equipment by the total load of the equipment. The capability index is multiplied by the allotted load to provide a feasible load of the equipment for the process. By summing the feasible load of each equipment, a total feasible load under the operation pattern is calculated for each process. By comparing the total feasible load with the load for each process, the operation pattern is determined whether acceptable or not.
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