Method for electronically tracking containers to avoid misproces

Details Method for electronically tracking containers to avoid misproces Method for electronically tracking containers to avoid misproces

1998-01-06

2000-10-24

Ellis, Christopher P.

Data processing: generic control systems or specific application

Specific application, apparatus or process

Article handling

700215, 34082554, 340572, G06F 1700

Patent

active

06138058&

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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