Patent ID: 6667530
Filing Date: 2003-12-23
Classification: H01L

Abstract:
A semiconductor device comprising a multi-layer interconnection structure including:a substrate; an interlayer insulating film on the substrate; a lower-layer interconnection in said interlayer insulating film; an upper-layer interconnection; and an insulating film between said interlayer insulating film and said upper-layer interconnection, said insulating film comprising a photosensitive film including a groove filled with said upper-layer interconnection at an upper surface of said insulating film and a connection hole filled with an electrically conducting material connecting said upper-layer interconnection to said lower-layer interconnection, wherein said insulating film includes a lower-layer insulating film and an upper-layer insulating film that are photosensitive to mutually different wavelengths and are laminated, said connection hole is in said lower-layer insulating film, and said groove is in said upper-layer insulating film.