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.:
Date of Patent:
Apr. 08, 2025
Filed:
Apr. 19, 2022
Asm America, Inc., Pheonix, AZ (US);
Imran Ahmed Bhutta, Moorestown, NJ (US);
ASM America, Inc., Phoenix, AZ (US);
Abstract
In one embodiment, an RF impedance matching circuit includes at least one electronically variable capacitor (EVC) comprising discrete fixed capacitors. Each fixed capacitor has 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 diode operably coupled to the fixed capacitor to cause the switching in and out of the fixed capacitor, the diode being a PIN diode or an NIP diode. Each switching circuit further includes a driver circuit operably coupled to the diode, and a resonant filter positioned between the driver circuit and the diode. The resonant filter includes an inductor and a capacitor coupled in parallel.