Patent ID: 7432727

Claim:
A probing device for establishing electric connection between a testing device and a plurality of semiconductor chips to be tested formed on a semiconductor wafer through probes by bringing the probes into contact with the semiconductor chips to be tested, each of the chips comprising one or more pads, the device comprising: a plurality of sets of units in an X direction and of units in a Y direction comprising a plurality of ribbon-like resin films comprising a plurality of probes laid out together in the probing device, each probe comprising a curved part; wherein the plurality of sets of units in the X direction and units in the Y direction are arranged in a grid form on a supporting board to be positioned and fixed there, and the probes positioned at each crossing of the units in the X direction and the units in the Y direction are brought into contact en bloc with all the pads of the chips to be tested formed on a semiconductor wafer to carry out probing tests; and wherein said ribbon-shaped film in the Y direction is arranged in such a way that an end of the probe protrude from the upper side of the curved part in the longitudinal direction, the other end tails down from the lower side of the curved part and extends to the end of the ribbon-shaped film to form a wiring line, a length of protrusion of the probe is formed longer than a length of protrusion in said ribbon-shaped film in the X direction, while the resin film part has an opening cut out being encircled by the curved part.