Patent ID: 8198146
Filing Date: 2012-06-12
Classification: H01L

Abstract:
1. A method for manufacturing a semiconductor device, comprising the steps of: forming a first brittle region in a silicon carbide substrate by first ion irradiation of the silicon carbide substrate; forming a second brittle region in a single crystal silicon substrate by second ion irradiation of the single crystal silicon substrate; bonding the silicon carbide substrate and a base substrate to each other with a first insulating layer interposed therebetween; bonding the single crystal silicon substrate and the base substrate to each other with a second insulating layer interposed therebetween; separating the silicon carbide substrate in the first brittle region to form a silicon carbide layer over the base substrate with the first insulating layer interposed therebetween; separating the single crystal silicon substrate in the second brittle region to form a single crystal silicon layer over the base substrate with the second insulating layer interposed therebetween; and forming a first transistor including the silicon carbide layer as a channel layer and a second transistor including the single crystal silicon layer as a channel layer.