Patent ID: 7762209
Filing Date: 2010-07-27
Classification: H01J,H05H

Abstract:
1. A plasma processing apparatus for plasmatizing processing gas in an electric field and then blowing it out, said plasma processing apparatus comprising: a first and a second electrodes each extending in a first direction and opposed in a second direction orthogonal to the first direction, each of said electrodes having a first and a second edges each elongated in said first direction and distant from each other in a third direction crossing both the first and the second directions, wherein; an insulative cover that covers said first electrode excluding the opposing side to said second electrode thereof, said insulative cover including a cover main body formed of an insulative material and a plasma-proof member which is formed of an insulative material which is higher in plasma-proof property than said cover main body, and said plasma-proof member including a formation surface forming a processing gas introducing hole which is continuous with said first aperture and an abutment surface having a shorter width in the second direction than that of a side surface on the first side edge of said first electrode and contacted with a part of the side surface, the cover main body covering an opposite side of the plasma-proof member to the abutment surface, said plasma-proof member extending in the first direction in parallel with said electrodes.