Method for electronically tracking containers to avoid misprocessing of contents
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United States of America Patent
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Oct 24, 2000
Grant Date -
N/A
app pub date -
Jan 6, 1998
filing date -
Jan 6, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
An apparatus for tracking items in a factory is disclosed. The apparatus is partially well suited for manufacturing environments wherein there are a plurality of items to be kept together in groups. The invention is particularly useful in semiconductor processing facilities wherein batches of semiconductor wafers to be processed are placed in wafer carriers which are, in turn, placed in work-in-progress boxes. Applying identification tags to one item that can be read and processed by a microterminal attached to the other item provides an effective way to prevent improper grouping of the items which can lead to misprocessing or handling of the batches of wafers.
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