Patent ID: 9587306
Date: 2017-03-07
CPC Classifications: C23C,G11B,H01J

Claim:
1. A device for producing a directional layer on a plane substrate surface of a substrate with a constant nominal directionality in the plane substrate surface by means of cathode sputtering, with a vacuum chamber where at least one target is placed and which contains at least one holder suitable for attaching the substrate in such fashion that the plane substrate surface faces a surface of the at least one target, and at least one collimator placed between the target surface and the holder, the collimator consisting essentially of plane plates which are parallel to one another and aligned in a direction normal to the plane substrate surface, where an average length of the plates in the direction normal to the plane substrate surface decreases from a center of the collimator toward outer ends thereof, where a location of the collimator relative to a location of the holder can be switched between two positions such that, in one of the positions, each of the plates occupies a point that is vacant in an other one of the positions, an orientation of the plates being equivalent in both of the positions, and where, in the one of the positions of the collimator, each of the plates, with an exception of one of two end plates, occupies a location approximately situated in a middle between two points that, in the other one of the positions, are occupied by the plates.