Patent ID: 6150265
Filing Date: 2000-11-21
Classification: C23C,H01L

Abstract:
A method for depositing a film on a semiconductor wafer comprising:preheating a source gas in a preheating chamber comprising a first ultraviolet radiation source and a first infrared radiation source;depositing said film on said wafer by presenting said source gas to said wafer, said step of depositing occurs during the emission of ultraviolet rays;annealing said film using ultraviolet rays;wherein said ultraviolet rays are emitted from a second ultraviolet radiation source and a second infrared radiation source, said second radiation sources axisymmetrically arranged about a central location within a fabrication chamber so that the emitted radiation is substantially uniform throughout said chamber, said emitted radiation from said ultraviolet radiation source has an unobstructed path to said semiconductor wafer.