Patent ID: 7008863
Filing Date: 2006-03-07
Classification: B23K,H01L

Abstract:
1. A method for forming a polycrystalline silicon film by crystallizing an amorphous silicon film, which is formed on a glass substrate by interposing a buffer layer therebetween, by irradiating a laser beam onto the amorphous silicon film using a predetermined mask, the method comprising the steps of: i) dividing an area of the predetermined mask into first, second, and third shot regions, a first shot region having a plurality of non-overlapping first transmission sections arranged in a first column along a y-direction, a second shot region having a plurality of non-overlapping second transmission sections arranged in a second column along the y-direction, a third shot region having a plurality of non-overlapping third transmission sections arranged in a third column along the y-direction. ii) performing primary to n