Patent ID: 7510920

Claim:
A manufacturing method for a semiconductor device including a thin film transistor, a capacitor, and a driver circuit, comprising the steps of: forming an amorphous semiconductor film on an insulating surface; and irradiating a laser light to perform crystallization to regions in which active layers of the thin film transistor, the capacitor, and the driver circuit are formed, wherein the laser light is a laser light of pulse oscillation emitted from a solid laser oscillation apparatus, wherein a direction in which the laser light is moved on the amorphous semiconductor film is parallel to a direction in which carriers move in a channel formation region in the thin film transistor, wherein the thin film transistor, the capacitor, and the driver circuit are formed on a same substrate, wherein a convex lens is provided in a light path of the laser light between the solid laser oscillation apparatus and the substrate, wherein a mirror is provided in the light path of the laser light between the convex lens and the solid laser oscillation apparatus, and wherein a concave lens is provided in the light path of the laser light between the mirror and the convex lens.