The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 16, 2025

Filed:

Jan. 23, 2023
Applicant:

Mks Inc., Andover, MA (US);

Inventors:

Linnell Martinez, Lakeland, FL (US);

David Miller, Rochester, NY (US);

Aaron Radomski, Conesus, NY (US);

Assignee:

MKS Inc., Andover, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 37/00 (2006.01); H01J 37/32 (2006.01);
U.S. Cl.
CPC ...
H01J 37/32128 (2013.01); H01J 37/32091 (2013.01); H01J 37/321 (2013.01);
Abstract

A RF power generation system includes a power source configured to generate a periodic waveform applied to a load and a controller configured to receive at least one of a voltage signal or a current signal indicating a respective voltage and current applied to an electrode of the load. The controller determines a surface potential of a workpiece in the load in accordance with the at least one of the voltage signal or the current signal and a series capacitance of the electrode. The controller further determines an ion potential in accordance with an approximation of the surface potential. The periodic waveform may be one of a pulsed DC waveform, a RF waveform, or a pulsed RF waveform.


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