Patent ID: 6110815
Filing Date: 2000-08-29
Classification: H01L,H05K

Abstract:
A method of electroplating the end of conductive traces forming conductive trace lands on an integrated circuit (IC) substrate for attaching to an IC chip, said method comprising:(a) providing an IC substrate having a first surface and a second surface;(b) forming a plurality of conductive traces on a first surface of the IC substrate, the ends of the conductive traces forming conductive trace lands;(c) coating the IC substrate with plating resist covering only the traces;(d) selectively removing portions of the plating resist exposing portions of the conductive traces whose conductive trace lands require electroplating;(e) attaching a conductive elastomer to the exposed portions of the conductive traces and electrically connecting the conductive traces together;(f) electroplating with conductive material the conductive trace lands on the IC substrate using the conductive elastomer as the electrical connection for the conductive trace lands to be plated; and(g) removing the conductive elastomer from the exposed traces after electroplating.