Patent ID: 6849484

Claim:
A method of manufacturing a semiconductor device, comprising the steps of: forming on a main surface of a semiconductor substrate, one electrode portion and another electrode portion covered respectively with a first insulating film, with a space apart from each other; forming on said semiconductor substrate, a second insulating film having an etching property different from said first insulating film, so as to cover said one electrode portion and said another electrode portion; forming in a self-aligned manner on said second insulating film, a first opening exposing a portion of a region of said semiconductor substrate lying between said one electrode portion and said another electrode portion; forming a second opening exposing a surface of said one electrode in said second insulating film and said first insulating film; and forming a conductive layer within said first opening and said second opening; wherein a first forming region where said first opening is formed and a second forming region where said second opening is formed are arranged so as to have a portion two-dimensionally overlapping with each other, and are formed such that said first opening communicates with said second opening.