Patent ID: 8093135

Claim:
A method of manufacturing a semiconductor device, comprising: forming a damaged region in a semiconductor substrate by irradiating the semiconductor substrate with an ion species included in plasma which is generated by exciting a source gas using a doping apparatus; forming a bonding layer over at least one of a base substrate and the semiconductor substrate; attaching the base substrate and the semiconductor substrate to each other with the bonding layer interposed therebetween; dividing the semiconductor substrate at the damaged region by heating the semiconductor substrate, thereby forming a first semiconductor layer separated from the semiconductor substrate, over the base substrate; etching a part of the first semiconductor layer to form a second semiconductor layer; forming an insulating film over the second semiconductor layer; forming a gate electrode over the second semiconductor layer with the insulating film interposed therebetween; etching a portion of the insulating film that does not overlap with the gate electrode; forming a gettering site region including a Group 18 element in a region of the second semiconductor layer that does not overlap with the gate electrode; and performing heat treatment, thereby gettering a metal element in the second semiconductor layer into the gettering site region.