Patent ID: 6220203
Filing Date: 2001-04-24
Classification: C23C,H01J

Abstract:
A device for vacuum coating bulk material including a plurality of parts, comprising:a rotating holder for accommodating the bulk material;a plasma coating source arranged within the rotating holder, a rotational speed of the rotating holder being less than a speed for producing a centrifugal force for fixing the bulk material against an inner wall of the rotating holder such that the plurality of parts are under an effect of a gravitational force and are located in a spatially small area in a lower section of the rotating holder; anda device for cleaning the bulk material using a plasma and arranged within the rotating holder, the device for cleaning the bulk material being aligned with respect to an axis of rotation of the rotating holder in a direction of a position of the bulk material so that spheres of action of the plasma coating source and spheres of action of the device for cleaning the bulk material overlap.