Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – Of individual circuit component or element
Patent
1993-09-15
1995-11-21
Wieder, Kenneth A.
Electricity: measuring and testing
Fault detecting in electric circuits and of electric components
Of individual circuit component or element
324758, 324761, G01R 3102
Patent
active
054690641
ABSTRACT:
The present invention is an improved printed circuit board test system in which test probes are positioned to electronically engage a selected device or printed circuit board section on a printed circuit board for testing the printed circuit board for manufacturing defects. The printed circuit board test system uses a bed-of-nails test fixture to ground and excite predetermined sites on a first side of the printed circuit board and a robot to mechanically position test probe(s) at selected test sites on a second side of the printed circuit board. A controller is used to control the movement of the robotic tester and the selection of spring probes in the bed-of-nails fixture to be exited, grounded or measured.
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Crook David T.
Heumann John M.
Kerschner Ronald K.
McDermid John E.
Schlotzhauer Ed. O.
Baan Cynthia S.
Brown Glenn W.
Hewlett--Packard Company
Wieder Kenneth A.
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