Patent ID: 7055809
Filing Date: 2006-06-06
Classification: B01F,C23C,Y10S

Abstract:
1. A chemical vapor deposition system using a liquid reactant and a carrier gas, comprising: a chemical vapor deposition chamber having a gas inlet port, and a liquid reactant vaporizer having an outlet port connected to said chamber inlet port, said vaporizer comprising: a valve body having a first aperture, a second aperture, and a third aperture; a valve seat; a gas inlet port for receiving said carrier gas, said gas inlet port connected to said first aperture through a first fluid channel; a liquid inlet port for receiving the liquid reactant, said liquid inlet port connected to said second aperture through a second fluid channel; a valve mechanism including a valve element disposed adjacent to said valve seat and forming a valve region, said valve seat being continuously adjustable by said valve mechanism over a continuous range of settings between and including a fully closed position and a fully open position so as to variably control the flow rate of the fluid; and an outlet port connected to said third aperture through a third fluid channel.