Patent ID: 11955308
Assignee: KLA CORPORATION
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  H | IPC F  H

Claim 0:
1. A high speed rotating anode system, comprising:
a rotary spindle shaft, a first end of the rotary spindle shaft configured to extend through an opening in a wall of a vacuum chamber;
a rotary platen coupled to the first end of the rotary spindle shaft, an anode material disposed on a surface of the rotary platen, the rotary platen configured to rotate within the vacuum chamber;
a counterweight configured to be attached to a second end of the rotary spindle shaft opposite the first end;
a first radial air bearing disposed around the rotary spindle shaft adjacent to the first end, the first radial air bearing configured to support a load in a direction perpendicular to a rotational axis of the rotary spindle shaft;
a second radial air bearing disposed around the rotary spindle shaft adjacent to the second end of the rotary spindle shaft, the second radial air bearing configured to support a load in the direction perpendicular to the rotational axis of the rotary spindle shaft;
a rotary motor disposed between the first and second radial air bearings, the rotary motor configured to apply a rotational torque to the rotary spindle shaft, the rotary motor including a rotor coupled to the rotary spindle shaft; and
a thrust bearing disposed between the first and second radial air bearings, the thrust bearing configured to support a load in a direction parallel to the rotational axis of the rotary spindle shaft.