Patent ID: 7246796
Filing Date: 2007-07-24
Classification: B01B,B01D,B01F,C23C,H01L,Y10S

Abstract:
1. A vaporizer, comprising: a dispersion part; and a vaporization part, the dispersion part having i) a gas passage formed internally, ii) a gas inlet configured to introduce a carrier gas into the gas passage, iii) a means to supply a raw material solution to the gas passage, and iv) a gas outlet configured to send the carrier gas including the raw material solution to the vaporization part, and the vaporization part having i) a heating means configured to heat an inside of the vaporization part, and ii) a heat prevention member covering the gas outlet having an opening with a cross-sectional area smaller than a cross-sectional area of an opening of the gas outlet, wherein the cross-sectional area of the opening of the heat prevention member is less than ½ of the cross-sectional area of the opening of the gas outlet.