Patent ID: 8628647
Filing Date: 2014-01-14
Classification: C23C,H01J

Abstract:
1. An arrangement for the separation of particles from a plasma for the formation of a coating onto the surface of a substrate under vacuum conditions, wherein a plasma is formed from a target by pulsed laser or arc discharge and positive charge carriers of the plasma are accelerated to coat the substrate by an absorber electrode connected to an electrically positive potential with respect to the plasma, said substrate spaced from said target, said absorber electrode being arranged and aligned such that a direct incidence of components of the plasma is avoided, said arrangement comprising said target in the shape of an elongated rotatable cylindrical roller defining an axis of rotation, said absorber electrode having a length and disposed angularly with regard to, and spaced from, said cylindrical roller of said target and an elongated bar-shaped first magnet element, comprising a permanent magnet or an electromagnet, having a length equal to or longer than the length of said target and equal to or longer than the length of said absorber electrode and wherein said elongated bar-shaped first magnet element is aligned such that its length is parallel to the axis of rotation of said target and disposed adjacent to and spaced from the circumference of said cylindrical roller of the target and positioned angularly away from said absorber electrode around the circumference of said cylindrical roller to define a space between said first magnet element and said absorber electrode, said substrate positioned within said space between said absorber electrode and said first magnet element, said first magnet element located between said target and said substrate, said absorber electrode located between said target and said substrate, and wherein the space between said first magnet element and said absorber electrode is arranged such that plasma accelerated from the target in the direction of said substrate is guided between the absorber electrode and the elongated bar-shaped first magnet element to said substrate.