Patent ID: 7456645

Claim:
An inspection coaxial probe comprising: a conductive block, formed with a first face, a second face opposed to the first face and a penetration hole connecting the first face and the second face; a first conductive plate, formed with a first recess and a first through hole communicated with the first recess and provided on the first face of the block; a contract probe, comprising: a conductive pipe; and a conductive plunger, retractably provided at a first end of the pipe and adapted to be brought into contact with a device to be inspected; and a first insulative spacer formed with a second recess and a second through hole communicated with the second recess, wherein the first insulative spacer is inserted into the first recess; wherein the first end of the pipe is fitted into the second recess, such that the contact probe is coaxially retained in the first through hole, the second through hole and the penetration hole of the block and a part of an outer periphery of the pipe directly faces an interior wall of the penetration hole while forming an air gap therebetween; and wherein an inner diameter of the first recess is larger than an inner diameter of the penetration hole.