In-situ binary PCM code indentifier to verify a ROM code id duri

Details In-situ binary PCM code indentifier to verify a ROM code id duri In-situ binary PCM code indentifier to verify a ROM code id duri

1998-08-26

2000-12-12

Grant, William

Data processing: generic control systems or specific application

Specific application, apparatus or process

Product assembly or manufacturing

702193, 714718, 438 14, G06F 1900

Patent

active

061610534

ABSTRACT:
A method and means for testing binary code devices, such as ROMs, for correct coding during processing with the Process Control Machine (PCM) for the fabrication process by applying it on the scribe-line built-in binary code devices, and using the testing program to measure the threshold voltage VTN of the code devices and convert the binary signal sensed to a decimal number to identify the ROM code id. After finishing wafer processing and PCM testing, the real ROM code id that has been fabricated can be read from the PCM testing report.

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