Manufacturing management and apparatus for a semiconductor device
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United States of America Patent
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Dec 20, 1994
Grant Date -
N/A
app pub date -
Nov 27, 1991
filing date -
Nov 27, 1990
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Abstract
A production management method in a production system for semiconductor devices uses processing progress information for each of the plural number of manufacturing apparatus as the basis for performing start allocation of a plural number of next start product groups. When the state of progress has reached a certain stage and is close to the end, a product group of the same type as that which a manufacturing apparatus is processing from amongst start standby product groups is determined as the object of same type priority allocation. A link is made beforehand between that product group and a manufacturing apparatus for which that processing is about to end, and a product group that is an object of same type priority allocation to a manufacturing apparatus that is processing products of that same type, is not started by a manufacturing apparatus that is processing a product of a different type even if that manufacturing apparatus finishes its processing of a product of that different type earlier.
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