Patent ID: 6456099
Filing Date: 2002-09-24
Classification: G01R,H01L

Abstract:
A probe card comprising:a substrate having a surface; a plurality of first probe elements disposed on said substrate and configured to contact a plurality of first type of contact pads disposed at a plurality of first predetermined locations on an integrated circuit, each of said first probe elements comprising a contact portion that is disposed away from said surface of said substrate a first distance perpendicular to said surface; and a plurality of second probe elements disposed on said substrate and configured to contact a plurality of second type of contact pads disposed at a plurality of second predetermine locations on the integrated circuit, each of said second probe elements comprising a contact portion that is disposed away from said surface of said substrate a second distance perpendicular to said surface of said substrate, wherein each of said first type of contact pads extends to a greater height from a surface of said integrated circuit than each of said second type of contact pads, and said second distance is correspondingly greater than said first distance.