Patent ID: 8610353
Filing Date: 2013-12-17
Classification: H01J,H05H

Abstract:
1. An apparatus for generating plasma, comprising: a microwave generator configured to generate a microwave; a wave guide which is connected to the microwave generator, wherein the waveguide is elongated in a traveling direction of the microwave and has a hollow shape having a rectangular section in a direction perpendicular to the traveling direction; a gas feeder which is connected to the wave guide and feeds process gas into the rectangular section of the wave guide; and an antenna unit which is a part of the wave guide and discharges plasma generated by the microwave to the outside, wherein the antenna unit has one or more slots formed on a wall constituting a short side in a section of the antenna unit, creates plasma from the process gas fed into the wave guide under an atmospheric pressure in the slots by the microwave, and discharges the plasma out of the slots.