Patent ID: 7075319
Filing Date: 2006-07-11
Classification: G01R

Abstract:
1. A probe card used for performing an electrical test of a subject to be tested that is a semiconductor device or the like and comprising: a substrate body; a contactor unit, one surface thereof oriented to face one surface of the substrate body and the other surface of the contactor unit is provided with a plurality of contactors capable of electrical contact with electrodes of the subject to be tested; supporting means for supporting the contactor unit with elastic force; and a plurality of parallelism adjusting means provided with the substrate body and for adjusting a degree of parallelism of the contactor unit, wherein said contactor unit is provided with a flange section at an outside section thereof, wherein the supporting means is configured to include a support member and a coil spring, the support member being provided in the substrate body and having a flange section facing said flange section of the contactor unit at a greater distance than the contactor unit from the substrate body, the coil spring being interposed between said flange section of the support member and said flange section of the contactor unit for urging the contactor unit toward the substrate body, and wherein said parallelism adjusting means pushes a surface of the contactor unit in a manner to get away from the substrate body against the urging force applied by the coil spring to thereby adjust a spacing between the contactor unit and the substrate body.