Patent ID: 8004299
Filing Date: 2011-08-23
Classification: G01R

Abstract:
1. A probe card assembly comprising: a substrate; a conductive post, wherein the bottom face of the conductive post is connected to the substrate; a beam having a base end portion and a tip end portion, wherein the beam has at least two bends in a portion of the beam between the base end portion and the tip end portion, wherein each of the at least two bends forms an angle of approximately 90 degrees, and wherein the base end portion is approximately parallel to the tip end portion; and a fulcrum element comprising a stud bump secured to the conductive post and in contact with the portion of the beam that is between the base end portion of the beam and the tip end portion of the beam, the stud bump being adapted for contact with the beam such that both the base end portion and the tip end portion are cantilevered by the stud bump at an oblique angle with respect to the surface of the substrate.