Patent ID: 9271341
Filing Date: 2016-02-23
CPC Classification: H05B

Claim Text:
1. A heat treatment apparatus comprising: a heat treatment chamber in which a sample to be heated is heat treated; a planar first electrode disposed in the heat treatment chamber; a planar second electrode, which is facing the first electrode, on which the sample in mounted, disposed in the heat treatment chamber; a high-frequency power supply supplies a high-frequency power to the first electrode through a first feeder line in order to generate plasma between the first electrode and the second electrode; first and second reflection mirrors that are disposed so as to cover the first electrode and the second electrode and suppress radiation from the first electrode and the second electrode; wherein the second electrode is grounded through a second feeder line, a distance from the first electrode to the first reflection mirror is longer than a distance between the first electrode and the second electrode, and a distance from the second electrode to the second reflection mirror is longer than the distance between the first electrode and the second electrode.