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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.

Patent No.:

US 12119206 B1

PDFFull Text
Date of Patent:
Oct. 15, 2024

Filed:

Apr. 11, 2023

Switching circuit

Applicant:

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

Inventors:

Anton Mavretic, Natick, MA (US);

Ian M. Costanzo, Worcester, MA (US);

Ronald Anthony Decker, Turnersville, NJ (US);

Assignee:

ASM AMERICA, INC.;

Attorney:

The Belles Group, P.C. (ASM)

Primary Examiner:

Khanh V Nguyen

Int. Cl.
CPC ...
H03F 3/191 (2006.01); H01J 37/32 (2006.01); H01L 21/02 (2006.01); H01L 21/3065 (2006.01); H01L 21/311 (2006.01); H01L 29/20 (2006.01); H01L 29/778 (2006.01); H01L 29/861 (2006.01); H01L 49/02 (2006.01); H02M 3/335 (2006.01); H03H 7/38 (2006.01); H03H 7/40 (2006.01); H03K 17/687 (2006.01); H04B 1/44 (2006.01); H02M 3/00 (2006.01); H03K 17/10 (2006.01); H03K 17/691 (2006.01); H03K 17/795 (2006.01);
U.S. Cl.
CPC ...
H01J 37/32082 (2013.01); H01L 21/02274 (2013.01); H01L 21/3065 (2013.01); H01L 21/31116 (2013.01); H01L 28/20 (2013.01); H01L 28/40 (2013.01); H01L 29/2003 (2013.01); H01L 29/7787 (2013.01); H01L 29/861 (2013.01); H02M 3/33569 (2013.01); H03H 7/38 (2013.01); H03H 7/40 (2013.01); H03K 17/687 (2013.01); H04B 1/44 (2013.01); H01J 2237/334 (2013.01); H02M 3/01 (2021.05); H03F 3/191 (2013.01); H03K 17/102 (2013.01); H03K 2017/6875 (2013.01); H03K 17/691 (2013.01); H03K 17/7955 (2013.01);
Abstract

In one embodiment, an impedance matching network includes a variable reactance circuit having fixed reactance components and corresponding switching circuits. Each switching circuit includes a diode and a driver circuit. The driver circuit includes, coupled in series, a biasing current source positioned to provide a bias current to bias the diode, a first switch, a second switch, and a resistor. For each diode of each switching circuit, the control circuit is configured to receive a value related to a voltage drop on the resistor and, based on the value related to the voltage drop, adjust the bias current being provided by the biasing current source.

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