Patent ID: 8049525

Claim:
A parallelism adjusting mechanism of a probe card, comprising: a probe card for holding a plurality of probes electrically connecting a wafer as a test object and a circuitry for generating a test signal, the probe card comprising a wiring substrate and a reinforcing member that is mounted on one side of the wiring substrate; a prober for mounting thereon the probe card, the prober comprising a support member, a frame member supported by the support member and arranged at one side of the probe card opposite to a side at which the probe card holding the probes, and a docking member having a surface area smaller than that of the reinforcing member and interposed between the frame member and the probe card; and an inclination changing unit that moves the docking member or the probe card relative to the frame member and changes a degree of inclination of the probe card with respect to a lower surface of the frame member as a mounting reference surface for the probe card to be mounted on the prober to adjust a parallelism of the probe card with respect to the wafer.