Patent classifications
H01J37/342
System and method to control PVD deposition uniformity
A physical vapor deposition chamber comprising a tilting substrate support is described. Methods of processing a substrate are also provided comprising tilting at least one of the substrate and the target to improve the uniformity of the layer on the substrate from the center of the substrate to the edge of the substrate. Process controllers are also described which comprise one or more process configurations causing the physical deposition chamber to perform the operations of rotating a substrate support within the physical deposition chamber and tilting the substrate support at a plurality of angles with respect to a horizontal axis.
MAGNETRON PLASMA APPARATUS
A magnetron plasma apparatus boosted by hollow cathode plasma includes at least one electrically connected pair of a first hollow cathode plate and a second hollow cathode plate placed opposite to each other at a separation distance of at least 0.1 mm and having an opening following an outer edge of a sputter erosion zone on a magnetron target so that a magnetron magnetic field forms a perpendicular magnetic component inside a hollow cathode slit between plates and, wherein the plates and are connected to a first electric power generator together with the magnetron target to generate a magnetically enhanced hollow cathode plasma in at least one of a first working gas distributed in the hollow cathode slit and a second working gas admitted outside the slit in contact with a magnetron plasma generated in at least one of the first working gas and the second working gas.
Rotary plasma reactor
A rotary plasma reactor system is provided. In another aspect, a plasma reactor is rotatable about a generally horizontal axis within a vacuum chamber. A further aspect employs a plasma reactor, a vacuum chamber, and an elongated electrode internally extending within a central area of the reactor. Yet another aspect employs a plasma reactor for use in activating, etching and/or coating tumbling workpiece material.
Sputtering apparatus including gas distribution system
Some embodiments provide a magnetron sputtering apparatus including a vacuum chamber within which a controlled environment may be established, a target comprising one or more sputterable materials, wherein the target includes a racetrack-shaped sputtering zone that extends longitudinally along a longitudinal axis and comprises a straightaway area sandwiched between a first turnaround area and a second turnaround area, a gas distribution system that supplies a first gas mixture to the first turnaround area and/or the second turnaround area and supplies a second gas mixture to the straightaway area, wherein the first gas mixture reduces a sputtering rate relative to the second gas mixture. In some cases, the first gas mixture includes inert gas having a first atomic weight and the second gas mixture includes inert gas having a second atomic weight, wherein the second atomic weight is heavier than the first atomic weight.
APPARATUS AND PROCESS WITH A DC-PULSED CATHODE ARRAY
An apparatus for sputter deposition of material on a substrate. The apparatus includes a deposition chamber and a cathode array mounted in the deposition chamber. The array has three or more rotating cathodes. Each cathode has a cylindric target of equal target length L.sub.T and a magnetic system. The cathodes are spaced from one another such that their longitudinal axes Y.sub.Cj are arranged parallel to each other, in a distance T.sub.SD from a substrate plane S, and spaced apart along a projection of a substrate axis X in a distance T.sub.TT, whereat each cathode of the cathode array includes a magnetic system. The magnetic system of at least one cathode is swivel mounted round respective cathode axis Y.sub.Cj to swivel the magnetic system into and out of a swivel plane P.sub.TS. A pedestal is designed to support at least one substrate of maximal dimensions x*y to be coated in a static way. The pedestal is positioned in the deposition chamber in front of and centered with reference to the cathode array. At least one pulsed power supply is configured for supplying and controlling a power to at least one of the cathodes.
Convertible magnetics for rotary cathode
A rotary cathode assembly includes a cathode having a tube shape and defining a hollow center, a shield surrounding the cathode, the shield defining an access opening that exposes a portion of the cathode, and a rotary magnet subassembly disposed within the hollow center of the cathode. The rotary magnet subassembly includes a first magnetic component having a first magnetic field strength and a second magnetic component having a second magnetic field strength. The first magnetic field strength is greater than the second magnetic field strength. Characteristically, the first magnet component and the second magnetic component are rotatable between a first position in which the first magnetic component faces the access opening and a second position in which the second magnetic component faces the access opening. A coating system including the rotary cathode assembly is also provided.
MAGNETRON TARGET COUPLING AND SUPPORT DEVICE
Disclosed herein are devices, methods, and systems related to a magnetron-target coupling that includes a target coupling flange, a shaft fixedly coupled to the target coupling flange on a face opposite the target coupling flange, and having a first linear bearing component on a face opposite the target coupling flange. The magnetron-target coupling also includes a communication interface having a first communication electrode and a second communication electrode that are electrically coupled to each other wherein the second communication electrode is fixedly attached to the target coupling flange on a side opposite the shaft, the target coupling flange being disposed between the first communication electrode and the second communication electrode. The first communication electrode is supported such that it may be moved toward and/or away from the second communication electrode.
Sputtering apparatus including gas distribution system
Some embodiments provide a magnetron sputtering apparatus including a vacuum chamber within which a controlled environment may be established, a target comprising one or more sputterable materials, wherein the target includes a racetrack-shaped sputtering zone that extends longitudinally along a longitudinal axis and comprises a straightaway area sandwiched between a first turnaround area and a second turnaround area, a gas distribution system that supplies a first gas mixture to the first turnaround area and/or the second turnaround area and supplies a second gas mixture to the straightaway area, wherein the first gas mixture reduces a sputtering rate relative to the second gas mixture. In some cases, the first gas mixture includes inert gas having a first atomic weight and the second gas mixture includes inert gas having a second atomic weight, wherein the second atomic weight is heavier than the first atomic weight.
Sputtering apparatus including gas distribution system
Some embodiments provide a magnetron sputtering apparatus including a vacuum chamber within which a controlled environment may be established, a target comprising one or more sputterable materials, wherein the target includes a racetrack-shaped sputtering zone that extends longitudinally along a longitudinal axis and comprises a straightaway area sandwiched between a first turnaround area and a second turnaround area, a gas distribution system that supplies a first gas mixture to the first turnaround area and/or the second turnaround area and supplies a second gas mixture to the straightaway area, wherein the first gas mixture reduces a sputtering rate relative to the second gas mixture. In some cases, the first gas mixture includes inert gas having a first atomic weight and the second gas mixture includes inert gas having a second atomic weight, wherein the second atomic weight is heavier than the first atomic weight.
Method and apparatus for producing low-particle layers on substrates
The invention relates to methods and devices for producing one or more low-particle layers on substrates in a vacuum. The layers are deposited onto the substrate from a cylindrical source material, optionally together with a reactive gas component, by means of magnetron sputtering. The layer is deposited against the force of gravity in a sputter-up method. During the method or within the device, the structure or stochiometric atomic composition of the layers can optionally be modified using a plasma source. Multiple sputtering sources with different source materials can be provided in the device such that multiple layers of different compositions can be applied on the substrate at a high speed in one process.