Patent ID: 9386677
Filing Date: 2016-07-05
CPC Classification: A61L,H01J,H05H

Claim Text:
1. A method for treating one or more articles with a selectively concentrated plasma generated from dissociating one or more gases, the method comprising: supplying one or more gases from a source to a first chamber; applying RF power to dissociate the one or more gases and create a plasma; withdrawing the dissociated one or more gases from the first chamber through at least one pathway; and supplying the dissociated one or more gases to a treatment chamber containing one or more articles, wherein the at least one pathway selectively concentrates the plasma in the at least one pathway by using a narrower pathway with a volume smaller than the treatment chamber to restrict the diffusion of the plasma to concentrate the plasma, wherein the at least one pathway is comprised of an electrically conducting material or coating to provide a ground path for a plasma to be concentrated.