Patent ID: 7959731

Claim:
A method for producing a semiconductor wafer, comprising: epitaxially growing a Si 1-X Ge X layer (0<X≦1) having lattice strain on a surface of a silicon single crystal wafer to be a bond wafer; implanting at least one kind of a hydrogen ion or a rare gas ion through the Si 1-X Ge X layer to form an ion-implanted layer inside the bond wafer; closely contacting and bonding a surface of the Si 1-X Ge X layer and a surface of a base wafer through an insulator film; then performing delamination at the ion-implanted layer; performing a bonding heat treatment of binding the bonded surfaces at a temperature of, at least, more than or equal to a temperature when the delamination is performed; and then removing a Si layer of a delaminated layer transferred to a side of the base wafer by the delamination; wherein lattice strain is maintained in the Si 1-X Ge X layer.