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:
Feb. 01, 2022
Filed:
Oct. 28, 2019
Tdk Corporation, Tokyo, JP;
Kazuhiro Yoshikawa, Tokyo, JP;
Yuuki Aburakawa, Tokyo, JP;
Tatsuo Namikawa, Tokyo, JP;
Kenichi Yoshida, Tokyo, JP;
Hitoshi Saita, Tokyo, JP;
TDK CORPORATION, Tokyo, JP;
Abstract
Disclosed herein is a thin film capacitor that includes a capacitive insulating film, a first metal film formed on one surface of the capacitive insulating film, and a second metal film formed on other surface of the capacitive insulating film and made of a metal material different from that of the first metal film. The thin film capacitor has an opening penetrating the capacitive insulating film, first metal film, and second metal film. The second metal film is thicker than the first metal film. A first size of a part of the opening that penetrates the first metal film is larger than a second size of a part of the opening that penetrates the second metal film.