Patent ID: 6072190
Filing Date: 2000-06-06
Classification: G01R,H01L

Abstract:
A contact structure for electrically connecting a contact pin with an electrode of a device, comprising:a plurality of beams formed on a semiconductor substrate with a pitch equivalent to a pitch of electrodes on a semiconductor device under test (DUT), where each of the beams formed with:a micro contact pin having electric conductivity and integrally formed on one end of the beam which is movable in a vertical direction; anda piezoelectric element formed on said beam to drive said micro contact pin in said vertical direction when a drive signal is supplied to the piezoelectric element;wherein the vertical movement of each of the micro contact pins is selectively made by the drive signal, and wherein the vertical movement of each micro contact pin is independent from that of the other micro contact pins thereby contacting a target electrode on the DUT without causing any mechanical movement in the other micro contact pins.