Patent ID: 8980046
Filing Date: 2015-03-17
Classification: C23C,H01J,H05H

Abstract:
1. A plasma generation and axial exhaust assembly, comprising: an upper support plate; a number of support structures affixed to the upper support plate so as to extend in a substantially perpendicular direction away from the upper support plate; a central cylindrically-shaped plasma generation microchamber affixed to a first portion of the number of support structures at a location substantially centered upon the upper support plate; and a plurality of annular-shaped plasma generation microchambers affixed to corresponding portions of the number of support structures, the plurality of annular-shaped plasma generation microchambers positioned in a concentric manner about the central cylindrically-shaped plasma generation microchamber, wherein adjacently positioned ones of the central cylindrically-shaped plasma generation microchamber and the plurality of annular-shaped plasma generation microchambers are spaced apart from each other so as to form a number of axial exhaust vents therebetween, wherein each axial exhaust vent is fluidly connected to a fluid flow region between the number of support structures and between the upper support plate and each of the plurality of annular-shaped plasma generation microchambers, wherein the fluid flow region is fluidly connected to a peripheral exhaust vent formed at a periphery of the upper support plate between the upper support plate and an outermost one of the plurality of annular-shaped plasma generation microchambers.