Patent ID: 7582901
Filing Date: 2009-09-01
Classification: H01L

Abstract:
1. A semiconductor device comprising: a first electrode formed on a semiconductor substrate; an intermediate dielectric film provided in vicinity of an upper peripheral face of said first electrode, said intermediate dielectric film having an opening through said intermediate dielectric film in a vicinity of a central portion thereof; a dielectric film formed in the opening directly on said intermediate dielectric film; and a second electrode formed directly on said dielectric film; wherein the upper peripheral face of said first electrode is covered with said intermediate dielectric film, and a side of said first electrode is not covered with said intermediate dielectric film; wherein an end of said intermediate dielectric film is corresponding to an end of said first electrode; wherein an end of said dielectric film and end of said second electrode are provided at positions not overstepping an end of said intermediate dielectric film; and wherein at least a part of the intermediate dielectric film is formed between the dielectric film and the first electrode.