Patent ID: 8435871

Claim:
A method for manufacturing a semiconductor device comprising: forming an insulating layer over a single crystal semiconductor substrate; irradiating the single crystal semiconductor substrate with ions through the insulating layer to form a damaged region; forming a bonding layer on a surface of the insulating layer after forming the damaged region; bonding the bonding layer and a substrate having an insulating surface to each other; separating the single crystal semiconductor substrate at the damaged region to form a single crystal semiconductor layer over the substrate having the insulating surface; irradiating the single crystal semiconductor layer with a pulsed laser beam to reduce defects and improve a planarity of the single crystal semiconductor layer; and forming an active layer of a semiconductor element by using the single crystal semiconductor layer excluding a region which is irradiated with an edge portion of the pulsed laser beam, wherein the insulating layer includes a stacked-layer structure of a silicon oxynitride film and a silicon nitride oxide film.