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:
Jan. 27, 2026

Filed:

Dec. 19, 2023
Applicant:

Samsung Electronics Co., Ltd., Suwon-si, KR;

Inventors:

Juhyun Kim, Suwon-si, KR;

Haewook Park, Suwon-si, KR;

Younsok Choi, Suwon-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 37/32 (2006.01); H03F 3/45 (2006.01);
U.S. Cl.
CPC ...
H01J 37/32917 (2013.01); H01J 2237/24564 (2013.01); H03F 3/45475 (2013.01);
Abstract

A plasma diagnostic circuit includes a signal generator that outputs a first alternating current (AC) signal to a first reference node, a variable diagnostic circuit that includes a default electronic element connected between the first reference node and a measurement node and floated other electronic elements, a first probe that is connected to the measurement node and is exposed to plasma in a chamber, a differential amplifier that amplifies a difference between a first voltage of the first reference node and a second voltage of the measurement node and generates an analysis signal, and a selection controller that outputs a selection signal to the variable diagnostic circuit responsive to the analysis signal, wherein the selection signal indicates a target electronic element among the floated other electronic elements.


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Kim, Juhyun. (2026). Plasma diagnostic circuit including variable amplification unit and method of operating the same (U.S. Patent No. 12537177). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12537177

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