Patent ID: 8063652

Claim:
A probing apparatus for examining electrical characteristics of an examination object, comprising: a probe card comprising a contactor supporting on its under surface, a plurality of probe pins to be brought into contact with the examination object, a circuit board arranged on an upper surface side of the contactor and communicating with the examination object through the probe pins and the contactor, and a supporting member supporting the contactor and being fixed to a lower surface of the circuit board, the circuit board being reinforced by a screw fitting member being a reinforcing plate, the screw fitting member arranged on a side of the circuit board opposite to the contactor; a mechanism for adjusting a parallelism of the probe card with respect to the examination object, by adjusting a height of an outer circumferential portion of the circuit board, where the contactor and the circuit board are fixed onto the screw fitting member so as to be substantially parallel to each other; and a plurality of stopper mechanisms for regulating an upward movement of the probe card, the plurality of stopper mechanisms being disposed on both sides of the mechanism for adjusting a parallelism of the probe card, wherein the contactor, the circuit board and the screw fitting member are connected to one another and arranged to be substantially parallel to one another, wherein each of the stopper mechanisms has a stopper screw vertically penetrating through an outer circumferential portion of the circuit board and fixed to a fixing part at a bottom end part of the stopper screw, and a stopper nut for holding down the circuit board from above, the fixing part being separate from the supporting member, and the stopper nut being provided on the stopper screw.