Patent ID: 6699787
Filing Date: 2004-03-02
Classification: H01L

Abstract:
A method of production of a semiconductor device comprising:forming an electronic element on a first surface of a semiconductor substrate; forming an electrode pad electrically connected with said electronic element on said first surface of the semiconductor substrate; forming a through hole passing through said electrode pad and said semiconductor substrate; forming an insulating film on at least a second surface opposite the first surface of said semiconductor substrate, an inner wall of said through hole, and said electrode pad; forming a via hole exposing part of said electrode pad along an opening rim of said through hole by patterning said insulating film; forming a conductive film on said insulating film and in said via hole; and forming an interconnection pattern electrically leading from said electrode pad to the second surface of said semiconductor substrate through said through hole and said via hole by patterning said conductive film.