Patent ID: 7217954

Claim:
A silicon carbide semiconductor device comprising: a semiconductor layer made of silicon carbide; an electrode provided on the semiconductor layer; an interlayer dielectric film provided on the electrode; and an interconnect that passes through the interlayer dielectric film and reaches the electrode, wherein the electrode comprises: a first electrode portion in contact with the semiconductor layer; and a second electrode portion interposed between the first electrode portion and the interlayer dielectric film so as not to allow the first electrode portion to be in direct contact with the interlayer dielectric film, and the second electrode portion is made of a material whose adhesion to the interlayer dielectric film is higher than an adhesion of a material of the first electrode portion to the interlayer dielectric film, wherein the second electrode portion covers all side faces of the first electrode portion; wherein the first electrode portion comprises Ni; and wherein the electrode is a source electrode.