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. 30, 2024
Filed:
Jul. 17, 2019
Sony Semiconductor Solutions Corporation, Kanagawa, JP;
Hiroaki Nagano, Kanagawa, JP;
Sony Semiconductor Solutions Corporation, Kanagawa, JP;
Abstract
To achieve higher self-resonant frequency and lower parasitic resistance of a variable capacitance circuit whose capacitance value is changeable. The variable capacitance circuit includes a capacitor unit, a reactive element, and a bias circuit. The capacitor unit inside the variable capacitance circuit includes plural semiconductor elements connected in series, the plural semiconductor elements each having a capacitance value based on a bias voltage applied thereto. Further, the reactive element inside the variable capacitance circuit is connected to the capacitor unit. The bias circuit inside the variable capacitance circuit applies a bias voltage to each of the plural semiconductor elements.