Patent ID: 6091253
Filing Date: 2000-07-18
Classification: G01R

Abstract:
A jig for electrically bridging between a circuit board and a tester under test, said circuit board having a plurality of soldering points and at least one hole, comprising:a base, substantially being a frame structure with a chamber therein, having a first surface, said first surface having a plurality of first through holes corresponding to said soldering points and at least one guide pin applying to guiding said hole of said circuit board;at least two guide columns for installing on said first surface, each said guide column having a stopper at one end;a working plate having a second surface and a third surface opposite to said second surface, said working plate being installed on said first surface and having a plurality of second through holes corresponding to said first through holes in said first surface, said working plate having at least one first guide hole and at least two second guide holes for containing said guide pin and said guide columns, respectively, whereas said working plate slides along said guide pin and said guide columns smoothly and the stroke of said working plate limited by said stopper of said guide columns;a plurality of elastic members, installed between said working plate and said base, for uniformly moving said working plate; anda plurality of probes, retractably installed in said first through holes respectively and outwardly protruded from said first surface, for penetrating said second through holes when said working plate being forced to get close to said first surface and electrically coupling to said soldering points of said circuit board under test, said probes being electrically coupled to said tester.