Method for testing printed wiring boards for short circuits

Details Method for testing printed wiring boards for short circuits Method for testing printed wiring boards for short circuits

1994-03-17

1996-01-16

Wieder, Kenneth A.

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

324527, 3241581, 371 27, G01R 3128, G06F 1122

Patent

active

054850940

ABSTRACT:
A test pattern preparation unit divides output pins of each circuit element mounted on a printed wiring board into a group to which a logical value 0 is assignable and a group to which a logical value 1 is assignable, to thereby prepare a test pattern for detecting short-circuit failures between the groups. If short-circuit failures are undetectable among output pins in a given group, these output pins are further divided into a group to which the logical value 0 is assignable and a group to which the logical value 1 is assignable. In this way, the output pins are repeatedly divided into groups, to form test patterns for detecting short-circuit failures. These test patterns are applied to the board through a tester to detect short-circuit failures.

REFERENCES:
patent: 3657527 (1972-04-01), Kassabgi et al.
patent: 3673397 (1972-06-01), Schaefer
patent: 4045736 (1977-08-01), Carpenter et al.
patent: 4584683 (1986-04-01), Shimizu
patent: 4807229 (1989-02-01), Tada
patent: 5027353 (1991-06-01), Jarwala et al.
patent: 5305329 (1994-04-01), Sasaki

Affiliated with

Also associated with

Rating

Method for testing printed wiring boards for short circuits does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for testing printed wiring boards for short circuits, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for testing printed wiring boards for short circuits will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-311992