Patent ID: 11923175
Assignee: COMET TECHNOLOGIES USA, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 19:
20. A method for adjusting a match tuning capacitor in a matching network in a radio frequency plasma processing device, the method including:
determining a first variable gain setting for the match tuning capacitor based, at least in part, on a first match region of operation associated with the match tuning capacitor;
applying the first variable gain setting to a feedback signal from the matching network to determine a first adjustment for the match tuning capacitor;
implementing the first adjustment for the match tuning capacitor;
determining a second variable gain setting for the match tuning capacitor based, at least in part, on a second match region of operation associated with the match tuning capacitor;
applying the second variable gain setting to the feedback signal from the matching network to determine a second adjustment for the match tuning capacitor; and
implementing the second adjustment for the match tuning capacitor,
wherein the variable gain settings avoid over-damped and under-damped adjustment of the tuning motor in the different regions of operation of the match tuning capacitor.