Patent ID: 8796159
Filing Date: 2014-08-05
Classification: C30B,G21K,H01L

Abstract:
1. A method for processing at least one section of a thin film sample on a substrate, comprising the steps of: (a) controlling an irradiation beam generator to emit successive irradiation beam pulses at a predetermined repetition rate; (b) shaping each of the irradiation beam pulses to define at least one line-type beam pulse, wherein a profile of each of the line-type beam pulses includes a top portion, a leading portion and a trailing portion, wherein the top portion of each of the line-type beam pulses has an energy density which is above a complete melting threshold, the at least one line-type beam pulse being provided for impinging the film sample; (c) irradiating a first portion of the film sample with at least the top portion of a first one of the line-type beam pulses, to at least partially melt the first portion, the irradiated first portion being allowed to resolidify and crystallize to form approximately uniform areas therein, and (d) after step (c), irradiating a second portion of the film sample with at least the top portion of a second one of the line-type beam pulses to at least partially melt the second portion, the irradiated second portion being allowed to resolidify and crystallize to form approximately uniform areas therein, wherein an emission of the second one of the line-type beam pulses immediately follows an emission of the first one of the line-type beam pulses, wherein at least one section of the first portion of the film sample, corresponding to at least the top portion of the first one of the line-type beam pulses, is prevented from being irradiated by the trailing portion of the second one of the line-type beam pulses.