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:
Oct. 21, 2025
Filed:
Mar. 22, 2022
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Yosuke Hagihara, Osaka, JP;
Kazushi Yoshida, Osaka, JP;
Abstract
A capacitor includes a silicon substrate, a first terminal, a dielectric layer, a conductive portion, and a second terminal. The silicon substrate has a principal surface and a porous part. The principal surface includes an opening region and a non-opening region other than the opening region. The porous part has an opening in the opening region. The first terminal is electrically connected to the silicon substrate. The dielectric layer is formed on an inner surface of the porous part. The conductive portion is filled, on the dielectric layer, in the porous part. The second terminal is electrically connected to the conductive portion. At least one of the first terminal or the second terminal overlaps at least part of the porous part in the normal direction of the principal surface.