Sequential lateral solidification device and method of crystallizing silicon using the same

Abstract

A sequential lateral solidification (SLS) device and a method of crystallizing silicon using the same is disclosed, wherein alignment keys are formed on a substrate with one mask having a plurality of different patterns, and a crystallization process is progressed in parallel to an imaginary line connecting the alignment keys with information for a distance between the mask and the alignment key. The SLS device includes a laser beam generator for irradiating laser beams; a mask having a plurality of areas; a mask stage for moving the mask loaded thereto, to transmit a laser beam through a selective area of the mask; and a substrate stage for moving a substrate loaded thereto, to change portions of the substrate irradiated with the laser beam passing through the mask.

Dependencies are inferred from the claim text.