| 摘要 |
A raw material gas supply system (6) supplies a raw material gas to a gas use system (2) kept in a reduced pressure atmosphere. The system includes: a raw material tank (40) for storing a liquid raw material or a solid raw material; a raw material conduit (46) connected at one end to the raw material tank and connected at the other end to the gas use system; a carrier gas supply mechanism (54), connected to the raw material tank, for supplying a carrier gas into the raw material tank while controlling the flow rate of the gas; on-off valves (48, 50) interposed in the raw material conduit; a heater (64) for heating the raw material conduit and the on-off valves; and a temperature control device (92) for controlling the heater, wherein the raw material conduit and the on-off valves are each formed of a metal material having good thermal conductivity.
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