Patent ID: 8445365

Claim:
A method of processing a film on a substrate, comprising: generating a plurality of laser beam pulses; directing the plurality of laser beam pulses through a mask to generate a plurality of patterned laser beams; each of said patterned beams having a length l′, a width w′ and a spacing between adjacent patterned beams d′; irradiating a portion of a region of the film with one of the plurality of patterned beams, said beam having an intensity that is sufficient to melt the irradiated portion of the film, wherein the irradiated portion of the film crystallizes upon cooling; and repositioning the patterned beam a distance in the y-direction in the range of about l′/n−δ from the one irradiation pulse to the next, where δ is a value selected to form overlapping patterned beams; and repositioning the patterned beam a distance in the x-direction of about λ′ over a selected number of irradiation pulses, n, where λ′=w′+d′.