Patent ID: 7400045

Claim:
A semiconductor device comprising: a semiconductor substrate; a first insulating film provided over the semiconductor substrate; a first interconnect layer provided in at least an upper portion of the first insulating film; a second interconnect layer provided in at least an upper portion of the first insulating film; a first oxidation-resistant conductor film covering the top of the first interconnect layer; a second oxidation-resistant conductor film covering the top of the second interconnect layer; a second insulating film provided on the first insulating film, the first oxidation-resistant conductor film, and the second oxidation-resistant conductor film; a third insulating film provided on the second insulating film; and a first conductor contact portion passing through the third insulating film and the second insulating film to reach the oxidation-resistant conductor film; and a second conductor contact portion passing through the third insulating film and the second insulating film to reach the second oxidation-resistant conductor film, wherein the first conductor contact portion has a greater upper surface area than the second conductor contact portion.