Patent ID: 8536710
Filing Date: 2013-09-17
Classification: H01L

Abstract:
1. A semiconductor device comprising: a semiconductor substrate having a semiconductor element formed at a surface; an insulating layer formed on the surface of the semiconductor substrate; a plurality of interlayer insulating films which are formed on the insulating layer and has an opening window; a multilayer wiring which is formed with a plurality of wiring layers in the plurality of interlayer insulating films; a metal pad connected with the multilayer wiring, an upper surface part of the metal pad being a bottom part of the opening window, the metal pad being formed on the surface of the semiconductor substrate at a position closer than a lowermost layer of the plurality of wiring layers; and a pad ring provided on the metal pad, the pad ring penetrating the plurality of interlayer insulating films and the pad ring surrounding the opening window, wherein the metal pad and a substrate contact are formed in the insulating film.