Patent ID: 6614250
Filing Date: 2003-09-02
Classification: G01R

Abstract:
A sensor probe for use in a board inspection, said sensor probe comprising:an electrode layer, a lead wire layer, a bridge layer, and a base formed of a flat plate composed of either of silicon or silicon oxide, said electrode layer, said lead wire layer, and said bridge layer being laminated on said base, said electrode layer being comprised of a set of sensor electrodes, said lead wire layer being comprised of a set of lead wires for transferring a signal to outside, and said bridge layer coupling between said electrode layer and said lead wire layer, and wherein said lead wire layer includes a plurality of lead wires which are formed on said base and are connected to an outside pad; said bridge layer includes a plurality of bridge wires which are respectively connected to respective said lead wires of said lead wire layer and are extended in a direction perpendicular to said base; and said set of sensor electrodes respectively extend in the horizontal direction from respective said lead wires and have a predetermined area.