Patent ID: 6856024

Claim:
A semiconductor device, comprising a semiconductor substrate; a lower structure formed on said semiconductor substrate, said lower structure having a first kind contact surface and a second kind contact surface; an interlayer insulating film formed on said lower structure; a groove formed in said interlayer insulating film from an upper surface to an intermediate depth of said interlayer insulating film, said groove having a bottom above the first kind contact surface; a first kind conductive wire formed in said groove; a first kind opening formed through a remaining thickness of said interlayer insulating film from the bottom of said groove and reaching the first kind contact surface; a first kind conductive member formed in said first kind opening; a mask layer formed in the surface of said interlayer insulating film and on a surface of said first kind conductive wire and having an opening in an area corresponding to the second contact surface, an upper surface of said mask layer being flush with the surface of said interlayer insulating film; a second kind opening reaching the second kind contact surface from the opening of said mask layer; and a second kind conductive member formed in said second kind opening.