Patent ID: 7935585
Filing Date: 2011-05-03
Classification: H01L

Abstract:
1. A method for fabricating a semiconductor device, comprising: forming a silicon film having a thickness of 0.051 μm or less on a glass substrate; and recrystallizing the silicon film by causing a flame, as a heat source, of a gas burner that uses a hydrogen and oxygen gas mixture as a fuel to relatively scan the glass substrate, the gas burner including: the flame of the gas burner scans the glass substrate at a scanning speed of 0.03 m/s or higher but not more than 0.04 m/s so as to keep a thermal diffusion length that is 0.8 to 0.04 mm on the glass substrate during the recrystallization of the silicon film, thereby the recrystallization is accomplished by solid phase recrystallization, a surface temperature of the glass substrate during the recrystallization is 670 to 750° C., and the method for fabricating further includes moving the guide tube within the combustion compartment, thereby adjusting a distance between the guide tube and the nozzle.