Patent ID: 9559217
Date: 2017-01-31
CPC Classifications: H01L

Claim:
1. A silicon carbide semiconductor device, comprising a silicon carbide layer which has a first main surface and a second main surface opposite to said first main surface, and includes a p type region in contact with said first main surface and an n type region in contact with said p type region and said first main surface; an insulating layer which has a third main surface, a fourth main surface opposite to said third main surface, and a side wall surface connecting said third main surface and said fourth main surface, said insulating layer being in contact with said first main surface at said fourth main surface; a Schottky electrode which is in contact with said first main surface and said side wall surface; and a reaction region which is in contact with said insulating layer, said Schottky electrode, and said p type region, wherein said reaction region contains an element constituting said Schottky electrode, an element constituting said insulating layer, silicon, and carbon, and wherein all of said side wall surface and a portion of said third main surface are covered by a continuous portion of said Schottky electrode.