Patent ID: 7883935

Claim:
A method of manufacturing a semiconductor device, comprising: forming a second dielectric multi-layered film containing an interconnect on a substrate, and forming a first dielectric multi-layered film on said second dielectric multi-layered film; forming a recess in said first dielectric multi-layered film so as to extend therethrough; forming an MOx film, containing a metal M and oxygen as major components on said first dielectric multi-layered film and inside said recess, by a reactive film-forming process in an oxidative atmosphere; removing a portion of said MOx film formed at the bottom of said recess; forming an M film containing said M as a major component on said MOx film extended over the inside and the outside of said recess, and at the bottom of said recess; forming an electric conductor containing Cu as a major component on said M film extended over the inside and the outside of said recess, so as to fill said recess; and removing portions of said MOx film, said M film and said electric conductor laid outside of said recess.