Patent ID: 7394265

Claim:
A probe card disposed in a wafer tester, comprising: a substrate having a wiring pattern which transmits a test signal to be applied to a wafer constituting a testing object where a surface of the substrate has unevenness in height; a plurality of probe needles each being formed separately from the substrate and disposed on the substrate and connected to the wiring pattern through a bottom end thereof while a top end thereof is free to directly contact electrodes of the wafer to be tested, where each of the probe needles has a height identical to one another; and a plurality of flat portions each being formed on the surface of the substrate and whose surface is flattened so that the surfaces of the plurality of flat portions have the same vertical level with one another by compensating the unevenness of the substrate, the bottom end of the probe needle being mounted on the surface of the corresponding flat portion through an adhesive.