Probe card and the production method
View Patent ↗A probe card 1 is composed of a plurality of probe pins 50 having wafer-side plungers 51 at one end portion and substrate-side plungers 52 on the other end side; two probe guides 30 and 40 one above the other for supporting the plurality of probe pins 50, so that the plurality of probe pins 50 are arranged to be corresponding to an arrangement of external terminals of a semiconductor wafer and the wafer-side plungers 51 of the probe pins 50 protrude; a print substrate 10 having pads 13 for the substrate-side plungers 52 of the probe pins 50 supported by the probe guides 30 and 40 to contact; and a stiffener 20 provided on the back surface of the print substrate 10.
1. 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.
2. 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 a center portion of said probe guide by screws in a state of biasing the substrate-side probe portions of said probe pins to said substrate side, wherein the screws are provided at the circumferential portion and the center portion of said probe guide; and
wherein said screw for fixing said probe guide to said substrate at the center portion in the plane direction of said probe guide is inserted from said stiffener side.