Patent ID: 6123767
Filing Date: 2000-09-26
Classification: B01F,C23C,C30B

Abstract:
A method for feeding a gas for epitaxial growth, comprising the steps of:feeding a liquid raw material from a storage tank into a vaporizer,heating the liquid raw material by water having a temperature of the liquid raw material's boiling point or higher to vaporize the liquid raw material at the vaporizer,adjusting the flowing amount of an ingredient gas obtained by the vaporization at the vaporizer while heating the ingredient gas to over a temperature of the condensing point of the ingredient gas and keeping the temperature of the ingredient gas, andfeeding the ingredient gas the flowing amount of which is adjusted into a reactor for epitaxial growth while heating the ingredient gas to over a temperature of the condensing point of the ingredient gas and keeping the temperature of the ingredient gas,wherein feeding the liquid raw material from the storage tank into the vaporizer is carried by adjusting the feeding amount of the liquid raw material on the basis of pressure of the ingredient gas inside the vaporizer.