Patent ID: 6499216
Filing Date: 2002-12-31
Classification: G01R,H05K,Y10T

Abstract:
A method of making a probe card comprising the steps of:(a) providing a sacrificial layer, a substrate having electrical circuits thereon and a plurality of elongated leads, each said lead having a first end connected to said sacrificial layer, and a second end attached to said substrate and connected to the circuits thereon, the first ends of at least some of said leads being physically connected to the first ends of others of said leads by said sacrificial layer; (b) moving said substrate and said sacrificial layer away from one another so as to bend the second ends of said leads away from said sacrificial layer while leaving the first ends of said leads in position on said sacrificial layer; and (c) injecting a flowable material around said leads and curing said flowable material to form a dielectric encapsulant layer surrounding said leads; and (d) at least partially removing said sacrificial layer so as to leave terminals at said first ends of said leads movable with respect to said substrate.