Patent ID: 7218131

Claim:
An inspection probe comprising: resilient probe pins having electric contacts disposed in positions corresponding to electrodes of an external terminal of a semiconductor device at an angle between zero to ninety degrees to the surface of the electrodes on the semiconductor device, the probe pins being disposed as independent structures; a base substrate including pitch-expansion wiring layers of the probe pins; and a backup substrate for supporting the probe pins, the base substrate, and a flexible substrate, the flexible substrate being interposed between the base substrate and an inspection substrate to be attached to a semiconductor inspection device together with the pitch-expansion wiring layers; wherein at least one precious metal layer is disposed in a predetermined area at the tip of the probe pins on the side having the electric contact for contacting the electrodes of the semiconductor device to be inspected, wherein at least one metal layer is disposed on the probe pins and the pitch-expansion wiring layers, wherein the precious metal layer and the metal layer are composed of the same material or composed of different materials, wherein a roughness pattern comprising fine marks is provided on the surfaces of the probe pins on the side having the electric contacts for contacting the electrodes of the semiconductor device to be inspected, and wherein the probe pins comprise a resilient base material.