Patent ID: 8314010
Filing Date: 2012-11-20
Classification: H01L

Abstract:
1. A method of manufacturing a semiconductor device, said method comprising the steps of: forming a first silicon oxide film on a first single crystal semiconductor substrate, the first single crystal semiconductor substrate comprising silicon wherein a thickness of the first silicon oxide film is 0.05 to 0.5 μm; adding hydrogen to the first single crystal semiconductor substrate through the first silicon oxide film to form a hydrogen added layer in the first single crystal semiconductor substrate; bonding the first single crystal semiconductor substrate to a second silicon oxide film formed over a second substrate with the first silicon oxide film disposed between the first single crystal semiconductor substrate and the second substrate; separating the first single crystal semiconductor substrate at the hydrogen added layer by a heat treatment so that a single crystal semiconductor film is formed over the second substrate; forming a single crystal semiconductor island by patterning the single crystal semiconductor film; thermally oxidizing a surface of the single crystal semiconductor island in an oxidizing atmosphere to form an insulating film comprising silicon oxide on the single crystal semiconductor island; forming a gate electrode over the single crystal semiconductor island with the insulating film interposed therebetween; and performing hydrogenation by a heat treatment on at least the single crystal semiconductor island.