Circuit based testing apparatus and method for testing a...

Details Circuit based testing apparatus and method for testing a... Circuit based testing apparatus and method for testing a...

2006-09-26

2006-09-26

Nguyen, Vincent Q. (Department: 2858)

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Using radiant energy

C324S750010, C324S754120

Reexamination Certificate

active

07112967

ABSTRACT:
A circuit board testing apparatus for testing continuity and/or short-circuit of wirings formed on a circuit board, includes an electromagnetic wave irradiator which irradiates first terminals of the wirings with an electromagnetic wave so that electrons are discharged from the first terminals by photoelectric effect. Discharged electrons are trapped by an electrode which is electrically biased to have a higher potential than that of the second terminals of the wirings, thereby causing an electric current to flow through the wirings via the electrode. Existence of open-circuit and/or short-circuit of the wirings is judged based on the current flowing the wirings.

REFERENCES:
patent: 4578279 (1986-03-01), Zingher
patent: 4967152 (1990-10-01), Patterson
patent: 5517110 (1996-05-01), Soiferman
patent: 5781017 (1998-07-01), Cole et al.
patent: 5999005 (1999-12-01), Fujii et al.
patent: 6369590 (2002-04-01), Cugini et al.
patent: 6369591 (2002-04-01), Cugini et al.
patent: 0 264 481 (1988-04-01), None
patent: 0 424 270 (1991-04-01), None
patent: 1 022 573 (2000-07-01), None
patent: 1 109 029 (2001-06-01), None
patent: 8-278342 (1996-10-01), None
patent: 3080158 (2000-06-01), None

Affiliated with

Also associated with

Rating

Circuit based testing apparatus and method for testing a... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit based testing apparatus and method for testing a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit based testing apparatus and method for testing a... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3586875