Patent ID: 6250250
Filing Date: 2001-06-26
Classification: H01J

Abstract:
A multiple-cell plasma source for plasma treatment of surfaces of objects, comprising:hollow housing means formed at least by a second cathode means, first cathode means with a plurality of through openings, said first cathode means being spaced from said second cathode means forming a space therebetween;anode means located in said space between said first cathode means and said second cathode means, said anode means being electrically isolated from said hollow housing and having openings which are coaxial to said openings of said first cathode means;said second cathode means, said openings of said first cathode means, and said openings of said anode means forming individual plasma generating cells of said plasma source;magnetic field generating means for generating a magnetic field which is split into portions generating axial components of lines of forces of the magnetic field which pass through said cells;working gas supply means for the supply of a working gas into said hollow housing means;first electrical means for applying to said anode means a potential positive with respect to said first cathode means and to said second cathode means; anda vacuum chamber which contains said object located opposite said openings of said first cathode means.