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:
Jun. 30, 2026

Filed:

May. 25, 2022
Applicant:

Asm America, Inc., Pheonix, AZ (US);

Inventors:

Ronald Anthony Decker, Turnersville, NJ (US);

Imran Ahmed Bhutta, Morrestown, NJ (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 37/32 (2006.01); H03H 7/40 (2006.01); H03K 17/74 (2006.01);
U.S. Cl.
CPC ...
H01J 37/32183 (2013.01); H03H 7/40 (2013.01); H03K 17/74 (2013.01);
Abstract

In one embodiment, an RF impedance matching circuit is disclosed. The matching circuit includes at least one electronically variable capacitor (EVC). Each EVC includes fixed capacitors, each of the fixed capacitors having a corresponding switching circuit for switching in and out the fixed capacitor to alter a total capacitance of the EVC. Each switching circuit includes a switch operably coupled to the fixed capacitor to cause the switching in and out of the fixed capacitor. The switch includes at least one string of series-connected PIN or NIP diodes. For each string, at least one of the diodes of the string has a balancing capacitor parallel to the diode.


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