Patent ID: 7825002

Claim:
A method of manufacturing a semiconductor device, comprising: forming a first material layer on a substrate; forming a second material layer on the first material layer; forming a layer to be peeled over the second material layer, the layer to be peeled including an element; partially irradiating laser light to a portion of the first material layer; bonding a support to the layer to be peeled; and peeling the layer to be peeled to which the support is bonded from the substrate to which the first material layer is provided at one of an inner portion of the second material layer and an interface between the second material layer and the first material layer, wherein laser light is irradiated to the first material layer from a side of the layer to be peeled, wherein the element comprises at least one thin film transistor that uses, as a channel, a semiconductor layer overlapped with a gate electrode and that includes an insulating film interposed between the semiconductor layer and the gate electrode, and wherein the step of peeling the layer to be peeled comprises peeling the layer to be peeled in a same direction as a channel width direction of the channel.