Patent ID: 11915953
Assignee: APPLIED MATERIALS, INC.
Field: Measurement (Instruments)
Classification: CPC H  F  G | IPC G  H

Claim 11:
12. A non-transitory computer-readable medium comprising instructions that, when executed, cause a thermal processing chamber system to:
heat a first substrate disposed on an edge ring in a processing volume of a chamber body to a first temperature using a plurality of heat lamps;
cool the first substrate to a second temperature that is lesser than the first temperature;
rotate the edge ring using a rotor, the edge ring being supported on the rotor;
measure a distance between a distance sensor and a radial outer surface of the edge ring at a plurality of angular positions of the edge ring while rotating the edge ring and the first substrate thereon, wherein the radial outer surface of the edge ring faces a sidewall of the chamber body;
determine a center position shift of the edge ring using a maximum amplitude of oscillations of the distance and a phase of the oscillations of the distance relative to the angular positions of the edge ring; and
determine a corrected landing position using the center position shift.