Patent ID: 9691616
Date: 2017-06-27
CPC Classifications: H01L

Claim:
1. A method of manufacturing a silicon carbide semiconductor device, comprising the steps of: preparing one or more silicon carbide substrates having a first main surface and a second main surface located opposite to the first main surface; forming a doped region in the silicon carbide substrate by doping the first main surface with an impurity; forming a first protecting film on the first main surface; and forming a second protecting film on the second main surface, the step of forming the first protecting film being performed after the step of forming the doped region, and the method further comprising the step of activating the impurity included in the doped region by annealing with at least a portion of the first main surface being covered with the first protecting film and at least a portion of the second main surface being covered with the second protecting film, wherein at least one of the first protecting film and the second protecting film is a resinous organic film.