Patent ID: 7482821

Claim:
A probe card for collectively testing respective integrated circuits on a semiconductor wafer, the probe card is electrically connected to a test head of a semiconductor wafer testing apparatus and electrically contacts external terminals of the semiconductor wafer, comprising: a plurality of probe pins having at both end portions a wafer-side probe portion and a substrate-side probe portion respectively biased to the outer directions by an elastic body; a probe guide for supporting said plurality of probe pins, so that said plurality of probe pins are arranged corresponding to an arrangement of the external terminals of the semiconductor wafer and at least the wafer-side probe portions of said probe pins protrude; and a substrate having connection terminals for the substrate-side probe portions of said probe pins supported by said probe guide to contact; wherein said probe guide is fixed to said substrate at a circumferential portion and an inside in the plane direction of said probe guide in a state of biasing the substrate-side probe portions of said probe pins to said substrate side, wherein a stiffener is provided on an opposite side of said probe guide on said substrate, and said probe guide is fixed to said substrate and said stiffener, wherein said stiffener has an approximate dish shape as a whole.