Patent ID: 7900580

Claim:
A reaction container having a long shape, comprising: a gas introducing portion; and a buffer chamber, wherein said reaction container defines a reaction chamber which is to accommodate stacked substrates, said gas introducing portion is provided along a longitudinal direction of said container and configured to introduce substrate processing gas only into said buffer chamber, and said buffer chamber is disposed in said container, said buffer chamber including a plurality of gas-supply openings provided along the longitudinal direction of said container, said buffer chamber being configured to supply said processing gas, introduced into said buffer chamber from said gas introducing portion, from said gas-supply openings to said reaction chamber, said buffer chamber forming a space wherein a pair of rod-shaped electrodes to generate plasma are disposed, said electrodes extending in a longitudinal direction of said buffer chamber and having a length at least equal to the extent of gas-supply openings on said buffer chamber, and where all electrodes in said buffer chamber are rod-shaped.