Patent ID: 6540840
Filing Date: 2003-04-01
Classification: C23C

Abstract:
A vaporizer for MOCVD comprising:a dispersing section, and a vaporizing section; said dispersing section including a gas passage formed in an interior and a gas introduction port for introducing a carrier gas under pressure into said gas passage; said dispensing section also having a means having an opening for feeding a raw material solution to said gas passage and a gas outlet for delivering said carrier gas containing said raw material solution to said vaporizing section; said dispersing section further including a dispersing section body having a cylindrical hollow portion and a rod having an outer diameter substantially equal to the inner diameter of said cylindrical hollow portion, said rod having at least one groove formed in the external periphery thereof, said rod being inserted into said cylindrical hollow portion; a means for cooling said gas passage and a downstream side of said opening for feeding a raw material solution to said gas passage; said vaporizing section including a vaporizing tube having one end connected to a reaction tube of an MOCVD system and having the other end connected to said gas outlet of said dispersing section and a heating means for heating said vaporizing tube; and said vaporizing section serving to heat and vaporize said raw material solution containing carrier gas delivered from said dispersing section.