Patent ID: 8840844
Filing Date: 2014-09-23
Classification: H01J

Abstract:
1. A plasma generating apparatus for generating and emitting plasma to an outside of the plasma generating apparatus, comprising: a plasma chamber exhausted to vacuum and into which gas and a high-frequency wave are introduced; an exit electrode disposed on one side of said plasma chamber and that includes one or more holes through which the plasma passes; an antenna chamber disposed adjacently to said plasma chamber and exhausted to vacuum; an antenna disposed in said antenna chamber and that radiates the high-frequency wave; a partition plate made of an insulating material, that separates said plasma chamber from said antenna chamber to block the gas from entering said antenna chamber, and that allows the high-frequency wave radiated from said antenna to enter said plasma chamber; and a magnet device disposed outside said plasma chamber, and that generates, in said plasma chamber, a magnetic field that causes electron cyclotron resonance in a direction intersecting with a direction along which the plasma is emitted from said exit electrode, wherein the exit electrode includes: