Patent ID: 9653564
Date: 2017-05-16
CPC Classifications: H01L

Claim:
1. A method of manufacturing a semiconductor device, the method comprising: forming a molybdenum layer that mainly comprises molybdenum (Mo), on at least one of a semiconductor layer, an insulating film, and an electrode in the semiconductor device; a heat treatment including heating the molybdenum layer at a temperature of not lower than 200° C.; and a dry etching of the semiconductor device that includes the molybdenum layer, subsequent to the heat treatment, wherein the dry etching processes the semiconductor device that includes at least one of the semiconductor layer and the insulating film exposed, and the exposed molybdenum layer by dry etching, with the molybdenum layer as a mask, subsequent to the heat treatment, and wherein, after the dry etching, a part of the molybdenum layer remains, and another part of the molybdenum layer is formed as a part of the electrode.