Integrated circuit test apparatus test head

Details Integrated circuit test apparatus test head Integrated circuit test apparatus test head

1982-05-24

1985-05-14

Strecker, Gerard R.

Electricity: measuring and testing

Plural, automatically sequential tests

324 73AT, 324158F, 361415, 371 20, G01R 3128, G01R 104, G01R 1512

Patent

active

045175128

ABSTRACT:
An improved test system for performing DC and AC parametric and dynamic functional testing of multi-terminal integrated circuits is described. All of the circuitry for producing and responding to D.C. and high-integrity stimulus and response test signals is located within a Test Head module sized for use in close proximity of the device under test. A high-integrity bus in the Test Head interconnects the high-integrity producing and handling circuits, with inexpensive connectors and batch-fabricated printed circuit board techniques. A Controller provides digital test commands for energizing the test signal producing cirucits within the Test Head and for evaluating the test results. The control and measurement signals passing between the Controller and the Test Module require no special conductor implementation techniques. A unique detachable, modularized bussing scheme between the Controller and Test Head and within the Test Head enables the test system to be manufactured at minimum cost, while maximizing reliability, signal integrity and manufacturing repeatability from system to system and enables rapid replacement and interchangability of test circuits and functional capabilities without sacrificing the quality of bus structure that carries the high integrity signals.

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patent: 4348760 (1982-09-01), Rice et al.
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