Patent ID: 7804315
Filing Date: 2010-09-28
Classification: G01R

Abstract:
1. A probe card, comprising: a circuit board, including a test circuit and a ground circuit; a probe stand, including an insulating seat, a conductive layer and at least a conductive pin, one surface of the insulating seat being fixed on the circuit board, the other surface thereof being provided with the conductive layer, the at least a conductive pin being fed through the insulating seat, and the conductive layer being electrically connected to the ground circuit of the circuit board via the at least a conductive pin; at least a probe, including an inner core and an insulating layer wrapped outside, the at least a probe providing a first end, an intermediate segment and a second end, the first end being electrically connected to the test circuit of the circuit board, at least a portion of the intermediate segment being fixed in and piercing through an internal part of the insulating seat, and the second end being protruded from the insulating seat and exposed outside; and at least a conductive wire, being wound surrounding the intermediate segment of the at least a probe, one end of the at least a conductive wire being electrically connected to the ground circuit of the circuit board, and the other end of the at least a conductive wire being electrically connected to the conductive layer of the probe stand.