Patent ID: 7659185

Claim:
A method for forming a silicon thin-film on a metal substrate, comprising the steps of: (a) preparing a metal substrate and flattening a surface of the metal substrate; (b) forming an insulation film on the metal substrate; wherein the step (b) comprises the steps of: (b-1) forming a first oxide film on the metal substrate; (b-2) applying a pre-heat treatment process to the metal substrate on which the first oxide film has been formed; and (b-3) forming a second oxide film on the first oxide film of the metal substrate to which the pre-heat treatment process has been applied; (c) forming an amorphous silicon layer on the insulation film; (d) forming a metal layer on the amorphous silicon layer; and (e) heating the insulation film, the amorphous silicon layer, and the metal layer formed on the metal substrate to crystallize the amorphous silicon layer.