Patent ID: 8110990
Filing Date: 2012-02-07
Classification: H01J

Abstract:
1. An atmospheric pressure plasma apparatus comprising: a first electrode being porous and having a plurality of first penetrating holes; a second electrode forming an isolating space keeping the certain distance having second penetrating holes corresponding to the first penetrating holes and a plurality of first connecting holes for connecting the isolating space and an outer region; a ceramic nozzle penetrating the first and second penetrating holes to be connected to the outer region; and a cover disposed on the second electrode, including at least one mixing groove, and a second connecting hole for connecting the mixing groove and the outside, wherein a source gas is provided to the isolating space through the first electrode, wherein a secondary gas passes the isolating space through the ceramic nozzle to the outer region, wherein a radio frequency power supply is applied to the first and second electrodes to generate plasma in the isolating space from the source gas supplied through the first electrode, wherein the plasma is injected to the outer region through the first connecting holes, and wherein if the secondary gas passing the isolating space through the ceramic nozzle is injected to the outer region, the plasma and the secondary gas is mixed in the outer region, wherein at least one connecting hole and at least one ceramic nozzle having ends are connected to provide the secondary gas and plasma to each of the mixing grooves, and wherein the secondary gas mixed with the plasma is injected to the outside through second connecting hole.