Patent ID: 7279917
Filing Date: 2007-10-09
Classification: G01R

Abstract:
1. A probe for a probe card assembly comprising: a beam element having a first end and a second end; a tip structure on the second end of the beam element, the tip structure including a plurality of flattened conductive bumps arranged in a stacked configuration; a post structure securing the first end of the beam element to a substrate, wherein the post structure secures the first end of the beam element and allows a remaining portion of the beam element from the first end to the second end of the beam element to deflect in response to the tip structure making contact with a device to be tested; and adhesive material comprising a layer of gold disposed between at least two adjacent flattened conductive bumps from the plurality of flattened conductive bumps, wherein the layer of gold is in contact with each of the at least two adjacent flattened conductive bumps.