Patent ID: 7180312
Filing Date: 2007-02-20
Classification: G01R,H01L

Abstract:
1. A probe card for performing an electric test on a chip having a plurality of pads, the probe card comprising: a flexible substrate; and a flat, rectangular plate-shaped contact probe replaceable supported by the flexible substrate and having an outer end connected to the flexible substrate, an inner end including contacts to be contacted to the pads of the chip, and a signal layer including a plurality of linear contact wires arranged in parallel each other and perpendicular to the outer and inner ends and electrically connected to the flexible substrate, the contact probe being formed by cutting a general purpose insulation base material having a plurality of linear, parallel wires so that the number of the linear contact wires of the contact probe is equal to the number of the pads, and wherein the linear contact wires have distal ends functioning as the contacts, and wherein the distal ends of the contact wires are spaced each other at an equal pitch and the proximal ends of the contact wires are spaced each other at said equal pitch, and wherein the plurality of parallel wires of the general purpose insulation base material are parallel to one another throughout its length and arranged at said equal pitch and have a predetermined width throughout its length.