Patent ID: 8927898
Filing Date: 2015-01-06
Classification: B23K

Abstract:
1. A method of processing a liquid crystal display, comprising: shaping a laser beam profile in a short axis so as to have steep sides at both edges, an increasing linear gradient between both edges, and an intensity peak near one edge of the profile that corresponds to a protrusion in a silicon film to which the beam is applied; and scanning a laser beam that includes the laser beam profile over the silicon film using a step size near a maximum step size, wherein the shaping the laser beam short axis profile further comprises correlating the intensity profile of the laser beam to a melting temperature of the silicon film, wherein the width of the laser beam in the short axis is dimensioned to produce, responsive to the laser beam firing, a single protrusion in the silicon film, and wherein the edge of the profile having the intensity peak is a trailing edge of the laser beam with respect to relative movement between the silicon film and the laser beam.