Method and apparatus for measuring high speed logic states using

Details Method and apparatus for measuring high speed logic states using Method and apparatus for measuring high speed logic states using

1992-03-06

1995-02-21

Nguyen, Vinh

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With rotor

324 731, 348126, G01R 3128

Patent

active

053919858

ABSTRACT:
An array of circuit elements which when excited produces voltages is analyzed by examining successive voltage images produced by the circuit elements. Specifically, the array of circuit elements is repeatedly excited at high speed while the voltage image produced by the array is electro-optically sampled at a succession of clock times using a relatively slow-speed electro-optic image sampling technique using a burst clock, thereby to capture a succession of voltage images. The successive voltage images can be viewed on a display device directly individually, or they can be processed by an image processor which compares the successive voltage images with stored representations of voltage images to yield information regarding the condition of the array. Maximum permissible device operating speed can also be determined without examination of individual cells.

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