Patent ID: 7846828
Filing Date: 2010-12-07
Classification: H01L

Abstract:
1. A method for fabricating a semiconductor device, the method comprising the steps of: a) implanting dopant ions of a first conductivity type into a part of a silicon carbide layer on a substrate, thereby forming a high-concentration dopant diffused region; b) performing annealing for activating the dopant implanted into the high-concentration dopant diffused region; c) forming, on the silicon carbide layer, an epitaxially grown layer including a channel layer extending over the high-concentration dopant diffused region and the silicon carbide layer, after the step b) has been carried out; d) forming a metal film on a region of the epitaxially grown layer located on the high-concentration dopant diffused region, after the step c) has been carried out; and e) performing annealing to cause a reaction between the metal film and the epitaxially grown layer, thus forming an electrode of an alloy film which reaches the high-concentration dopant diffused region.