Patent ID: 6037667
Filing Date: 2000-03-14
Classification: G01R,H01L,H05K

Abstract:
A conductive structure for providing electrical connection between a semiconductor structure and external circuitry, said conductive structure comprising:a substrate having a substantially planar surface;a ball contact structure including a photoresist layer disposed on said substrate and a conductive layer disposed on said photoresist layer, said ball contract structure having an outer sidewall, an inner sidewall, a base disposed on said substantially planar surface, and a top surface opposite said base, said ball contact structure including an exposed conductive layer;a socket having a lateral wall defined by said inner sidewall of said ball contact structure and a bottom defined by said substantially planar surface of said substrate, said socket being at least partially surrounded laterally by said inner sidewall and being configured to receive a solder ball of said semiconductor structure; andan electrical trace extending from said exposed conductive layer to a terminal contact pad of said electrical trace.