Sequential unique marking

Details Sequential unique marking Sequential unique marking

2006-02-07

2006-02-07

Hoff, Marc S. (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Quality evaluation

C382S145000

Reexamination Certificate

active

06996484

ABSTRACT:
The present invention comprises a method of sequential unique marking comprising providing a multi-die handling device with a plurality of semiconductor devices therein, reading an ID code on the multi-die handling device, retrieving a tray map file corresponding to the ID code, determining a tray matrix of the multi-die handling device, retrieving data from the tray map file, the data comprising unique characters correlating to each semiconductor device of the plurality of semiconductor devices, and marking each semiconductor device with the data.

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