Patent ID: 7800232

Claim:
A semiconductor device comprising: a semiconductor substrate having a principal surface and a backside surface; a bed electrode electrically connected to a semiconductor element, wherein the bed electrode is disposed on the principal surface of the semiconductor substrate; a protective film disposed over the bed electrode, wherein the protective film includes an opening, through which a part of the bed electrode is exposed; and a metallic electrode disposed in the opening of the protective film and contacts the part of the bed electrode, wherein flatness deviation of a surface of the protective film and a surface of the metallic electrode is smaller than asperity of the backside surface of the semiconductor substrate, and wherein the metallic electrode is provided in such a manner that a metallic film for covering the protective film and the opening of the protective film is cut so as to be patterned as the metallic electrode under a condition where the semiconductor substrate with the metallic film is mounted on an adsorption stage.