High density probe card for testing electrical circuits

Details High density probe card for testing electrical circuits High density probe card for testing electrical circuits

1992-09-21

1995-01-17

Nguyen, Vinh

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

3241581, 324 725, G01R 3102

Patent

active

053828984

ABSTRACT:
A probe card formed of a printed circuit board having an opening therein and having a ground plane formed on the lower surface thereof. A ground strip formed of aluminum is secured to the printed circuit board and positioned adjacent the opening and in electrical contact with the ground plane. The strip includes a support surface for supporting a plurality of probes extending along and parallel to the surface and secured thereto by insulating means to maintain a predetermined distance from the support surface. The probes extend into the opening for making temporary electrical contact with a circuit to be tested.

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