Patent ID: 6541301
Filing Date: 2003-04-01
Classification: H01L

Abstract:
A method for electronically connecting a semiconductor device comprising a substrate having a backside surface and a top surface on which is formed active elements, to an electronic circuit board having a least two electrical contacts connected to sources of different potentials for communicating at least two different signals; said method comprising:forming at least two through-wafer via holes on said backside surface of said semiconductor substrate beneath each of said active regions extending therethrough to said top surface; forming a conductive layer of material within each of said via holes extending therethrough, each of said conductive layers formed being electrically separated from one another; said at least two electrical contacts on said circuit board congruently aligned with corresponding said conductive layers and associated via holes; and attaching said circuit board to said semiconductor substrate at each of said corresponding electrical contacts and conductive layers so as to provide electrical communication of at least one first signal with one of said active elements on said substrate through at least one of said via holes and to provide electrical communication of at least one second signal with one of said active elements on said substrate through at least another one of said via holes.