Patent ID: 7608492

Claim:
A method for manufacturing a semiconductor device, comprising: forming a semiconductor layer over a glass substrate; forming an insulating layer comprising a material selected from the group consisting of silicon oxide and silicon nitride over the semiconductor layer; forming an island-like light-absorbing layer over the semiconductor layer with the insulating layer interposed therebetween so that the island-like light-absorbing layer covers the semiconductor layer and end portions of the island-like light-absorbing layer are arranged outside of the semiconductor layer, said island-like light-absorbing layer being capable of absorbing a pulsed light; performing a heat treatment for the semiconductor layer and the insulating layer by selectively heating the light-absorbing layer through an irradiation of the pulsed light to oxidize a silicon cluster mixed into the insulating layer; and patterning the light-absorbing layer after performing the heat treatment.