Patent ID: 7077875

Claim:
A device for manufacturing a buried insulating layer type single crystal silicon carbide substrate within a film formation chamber after placing, in this film formation chamber, an SOI substrate having a buried insulating layer positioned on a silicon substrate and a surface silicon layer formed on this buried insulating layer, the manufacturing device for a buried insulating layer type silicon carbide substrate comprising: a gas supplying means for supplying various types of gasses required for the manufacture of a buried insulating layer type semiconductor silicon carbide substrate into the film formation chamber; an infrared ray irradiating means for irradiating the surface silicon layer of the SOI substrate with infrared rays; and a control means for controlling the gas supplying means and the infrared ray irradiating means, said control means controlling the gas supplying means to supply a mixed gas of hydrogen gas and hydrocarbon gas into the film formation chamber, while controlling the infrared ray irradiating means to raise under infrared irradiation the temperature of the surface silicon layer to that required for metamorphosing the surface silicon layer into a single crystal silicon carbide thin film, and maintaining this condition for a predetermined period of time so that the surface silicon layer is metamorphosed into a single crystal silicon carbide thin film.