Patent ID: 8642405

Claim:
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; 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 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 semiconductor layer is formed over the second substrate; forming a single crystal semiconductor island by etching a portion of the semiconductor layer; heating the single crystal semiconductor island at a temperature within a range of 900 to 1200° C.; forming a gate electrode over the single crystal semiconductor island; forming a metal silicide layer on the gate electrode; and forming an interlayer insulating film over the metal silicide layer, the interlayer insulating film comprising silicon nitride, wherein the interlayer insulating film is in contact with an upper surface of the metal silicide layer.