Patent ID: 6462419
Filing Date: 2002-10-08
Classification: H01L

Abstract:
A semiconductor device comprising:a semiconductor substrate having an opening penetrating from a front surface to a back surface of said semiconductor substrate; a semiconductor element formed on the front surface of said semiconductor substrate and having a metal wiring of a circuit of the semiconductor element formed thereon, said metal wiring contacted with the opening; a metal film formed on an inner wall of said opening, said metal film being in direct contact with and connected electrically to metal wiring; a conductive film, which is formed on the back surface of said semiconductor substrate, and electrically connected to and in direct contact with said metal film so as to cover an end face of said metal film in the opening; and a resin portion with which the space enclosed by said metal film formed in said opening is filled and in direct contact with said conductive film with which an end surface of said resin portion in the opening is covered.