Patent ID: 6270839
Filing Date: 2001-08-07
Classification: C23C

Abstract:
A raw material feeding apparatus for feeding a gas sublimated from a solid raw material to a film-forming apparatus using chemical vapor-phase deposition, the device comprising:sub-containers each having an inlet opening for introducing a gas into each of the sub-containers, an outlet opening for discharging the gas, a bottom on which a solid raw material is spread between the inlet and outlet openings, and a wall for defining a gap in conjunction with the bottom in which the introduced gas is moved on a surface of the solid raw material spread on the bottom while contacting the solid raw material;a raw material container for accommodating and holding the sub-containers;a heating device for heating the raw material container; anda device for introducing a carrier gas into the raw material container and including a passage communicating with the outlet openings of the sub-containers.