Patent ID: 8564017

Claim:
A silicon carbide semiconductor device having a gate electrode for switching a current, comprising: a drift layer having a thickness direction throughout which said current flows and having an impurity concentration N 1d for a first conductivity type; a body region provided on a portion of said drift layer, having a channel to be switched by said gate electrode, having an impurity concentration N 1b for said first conductivity type, and having an impurity concentration N 2b for a second conductivity type greater than said impurity concentration N 1b ; and a JFET region disposed adjacent to said body region on said drift layer, having an impurity concentration N 1j for said first conductivity type, and having an impurity concentration N 2j for said second conductivity type smaller than said impurity concentration N 1j , N 1j −N 2j >N 1d and N 2j <N 2b being satisfied.