| 摘要 |
Claimed and disclosed is a treatment apparatus for treating a substrate under decompressed atmosphere, comprising: a chamber, an exhausting means for exhausting the chamber, a first electrode provided in the chamber on which the substrate is mounted or held, a second electrode provided in the chamber opposing the first electrode, a liquid supply source containing a liquid material from which a process gas is generated, a housing provided between the liquid supply source and the chamber to be communicated to the liquid supply source and the chamber, a porous heating unit arranged in the housing for generating the process gas by heating the liquid material supplied from the liquid supply source into the housing in order to vaporize the liquid material, a process gas introduction section provided between the housing and the chamber for guiding the process gas from the housing to the chamber and vibrators to vibrate the porous heating unit. The porous heating unit which is capable of generating heat for itself has an element for electrically heating the porous heating unit. This porous heating unit is arranged in the housing for generating the process gas by heating the liquid material supplied from the liquid supply source into the housing in order to vaporize the liquid material. The treatment apparatus further comprises a process gas introduction section disposed between the housing and the chamber for guiding the process gas from the housing to the chamber.
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