Patent ID: 9175383
Filing Date: 2015-11-03
Classification: C23C,H01J

Abstract:
1. Coating device for the deposition of thin films on large area substrates comprising: a process chamber; at least two coating positions within the process chamber where substrates are positioned to be coated, the coating positions comprising a first coating position and a second coating position, an electrode arrangement within the process chamber which is adapted for generating a first plasma adjacent to the electrode arrangement at a first side of the electrode arrangement and for generating a second plasma adjacent to the electrode arrangement at a second side of the electrode arrangement, the first side and the second side being at two opposing sides of the electrode arrangement, wherein the first coating position and the second coating position are on opposite sides of the electrode arrangement; and at least two substrate holders for supporting at least two substrates in the coating positions on opposing sides of the electrode arrangement, wherein the substrate holders are movable so that the substrate holders are adapted to be used for transporting the substrates in and out of the process chamber, the electrode arrangement being located between the coating positions and the substrates facing in the coating positions the at least two plasma generated at the two sides of the electrode arrangement, wherein the electrode arrangement comprises at least three cathodes including a first cathode, a second cathode, and at least a third cathode, wherein each of the first cathode, the second cathode, and the third cathode are rotatable about a rotation axis and rotatable from the first substrate position to the second substrate position and vice versa, wherein the rotation axis of each of the first cathode, the second cathode, and the third cathode are in a single plane, wherein the single plane is substantially parallel to the coating faces of the substrates to be coated and wherein the first cathode, the second cathode, and the third cathode extend at a constant distance to the substrates to be coated, wherein the distances between adjacent cathodes are not equal for all pairs of proximate cathodes of the first cathode, the second cathode, and the third cathode, wherein each cathode of the at least three cathodes being adapted to generate the first and second plasma at at least two sides of each cathode so that the first plasma of each of the cathodes is associated with the first coating position of the substrates and the second plasma of each of the cathodes is associated with the second coating position.