Texas Instruments Corporation

Randy L Williams

Glenn R Fitzgerald

Eric Gregory Moore

Julian I Gloria

Michael Henson

Bruce D Bishop

A tester routine is provided that evaluates multiple test pins, on multiple devices under test, at the same time and only if a fail occurs does any evaluation have to be made. In the case of a failing pin on any device only that device with the falling pin is retested until passed or if not passed after a specified time the device is considered a fail.

Broadside compare with retest on fail

A test system (10) is provided that comprises a controller (14) which controls a test head (12) which comprises a pattern sequence controller (16). An integrated circuit (20) is tested through pin cards (18a) through (18n). A test program (32) operating in controller (14) operates to perform both functional and scanning tests on the integrated circuit (20). Scanning tests are provided for set-up, hold, pulse width, and maximum frequency.

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Denison, TX, United States of America

Randy L Williams