Patent ID: 11885024
Assignee: TOKYO ELECTRON LIMITED
Field: Surface technology, coating (Chemistry)
Classification: CPC C  H | IPC C  H

Claim 10:
11. A processing apparatus comprising:
a processing container having a substantially cylindrical shape; and
a gas introduction body extending in a longitudinal direction of the processing container and configured to supply a gas into the processing container,
wherein the gas introduction body includes:
an introduction section that partitions an introduction chamber;
an ejection section that partitions a plurality of ejection chamber, each including a plurality of gas holes through which the gas is ejected into the processing container; and
a branch section that partitions a plurality of branch chambers connected to the introduction chamber through a first communication pipe, branched corresponding to a number of the plurality of ejection chambers in a tournament manner through a plurality of second communication pipes, and connected to the plurality of ejection chambers through a plurality of third communication pipes,
wherein each of a plurality of lowest-level branch chambers among the plurality of branch chambers has a symmetrical structure with respect to a horizontal plane including each of the plurality of second communication pipes.