Patent ID: 7306829
Filing Date: 2007-12-11
Classification: C23C,H01J

Abstract:
1. A method of manufacturing a plasma treated workpiece, comprising providing a plasma reactor with a plasma discharge space; providing a gas distribution chamber between a plate with a multitude of gas feed openings therethrough and abutting into said plasma discharge space, and a wall distant from and opposite said plate, said wall having a multitude of gas inlet openings distributed along said wall into said distribution chamber and communicating with at least one gas feed line; providing at least one grid within said distribution chamber so as to be spaced from end faces of said wall and said plate and electrically isolated from said wall and said plate; exposing a workpiece to be treated to said plasma discharge space; generating in said plasma discharge space a plasma feeding a gas first through said gas feed line, then said gas inlet openings and said distribution chamber with said grid member, and finally through said gas feed openings directly into said discharge space providing said plate with a metallic surface; and operating said wall and said plate at different electrical potentials.