Patent ID: 7691687

Claim:
A method for processing a film, comprising: (a) generating a first laser beam pattern from a pulsed laser beam, the first laser beam pattern having an intensity that is sufficient to at least partially melt at least a portion of a first region of a film to be crystallized; (b) generating a second laser beam pattern from a pulsed laser beam, the second laser beam pattern having an intensity that is sufficient to at least partially melt at least a portion of a second region of the film to be crystallized, wherein the first region of the film comprises a first thickness and the second region of the film comprises a second thickness, and the first and second thicknesses are different; (c) irradiating the first region of the film with the first laser beam pattern to form a first crystalline region having a first grain structure; and (d) irradiating the second region of the film with the second laser beam pattern to form a second crystalline region having a second grain structure.