Patent ID: 7189631

Claim:
A method of manufacturing a semiconductor device, comprising: forming a metal layer in contact with a substrate; removing a portion of the metal layer which is in contact with a peripheral portion of the substrate; forming an oxide layer in contact with the metal layer, and a layer to be peeled including a semiconductor element over the oxide layer; bonding a support to the layer to be peeled; oxidizing the metal layer to form a metal oxide layer between the metal layer and the oxide layer after bonding the support to the layer to be peeled; and peeling the layer to be peeled that is bonded to the support from the substrate within the metal oxide layer, at an interface between the metal oxide layer and the oxide layer, or at an interface between the metal oxide layer and the metal layer after bonding the support to the layer to be peeled, wherein oxidizing the metal layer is conducted with irradiation of a laser beam.