Patent ID: 7948081

Claim:
A semiconductor device comprising: a first electrically conductive material having a recessed part that is indented from a surface of said first electrically conductive material; a catalytic layer covering a side wall of the recessed part and a bottom part of the recessed part; an insulation film covering said first electrically conductive material; a plurality of carbon nanotubes extending through said insulation film by being filled in an opening part that exposes said recessed part, the carbon nanotubes electrically connecting said first electrically conductive material and said second electrically conductive material to each other; and a second electrically conductive material covering on said insulation film and the plurality of carbon nanotubes, wherein ends of said carbon nanotubes are fixed to the catalytic layer covering the side wall and the bottom wall of the recessed part, wherein opposite ends of said carbon nanotubes are protected from said insulation film and buried in said second electrically conductive material, wherein said recessed part has a cross section parallel to the surface of said first electrically conductive material and having a configuration selected from the group consisting of a V-shape, an elliptic shape, a trapezoidal shape and a reversed trapezoidal shape, and wherein said carbon nanotubes extending from the catalytic layer covering the side wall of said recessed part first extend in a direction perpendicular to said side wall and then extend in a direction to go through said opening part of said insulation film.