Patent ID: 7267848
Filing Date: 2007-09-11
Classification: C23C

Abstract:
1. A method of fabricating a protective film comprising: providing a vacuum ultraviolet radiation CVD (Chemical Vapor Deposition) system comprising a vacuum ultraviolet rays generator, a reactor provided with a platform for supporting a substrate, a heat retainer provided on the platform, and a window separating the vacuum ultraviolet rays generator from the reactor; feeding an organic stock gas from a gas feeder into the reactor while retaining temperature of the substrate at a temperature about equal to or less than 100° C. with the heat retainer; and irradiating simultaneously the reactor with vacuum ultraviolet rays from the vacuum ultraviolet rays generator through the window; wherein photons from the vacuum ultraviolet ray generator have a wavelength of about 172 nm and an energy of about 7.2 eV, sufficient to break an Si—N bond; and wherein an organosilazane gas having Si-N bonds is used for the organic stock gas.