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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 12610745 B1

PDFFull Text
Date of Patent:
Apr. 21, 2026

Filed:

Oct. 25, 2022

Piezoelectric device with insulating portion provided inside trench

Applicants:

Denso Corporation, Kariya-city, JP;

Toyota Jidosha Kabushiki Kaisha, Toyota, JP;

Mirise Technologies Corporation, Nisshin, JP;

Nisshinbo Micro Devices Inc., Tokyo, JP;

Inventors:

Yuya Sakurai, Nisshin-city, JP;

Hideo Yamada, Nisshin-city, JP;

Megumi Suzuki, Nisshin-city, JP;

Tetsuya Enomoto, Nisshin-city, JP;

Akihiko Teshigahara, Nisshin-city, JP;

Takahide Usui, Fujimino-city, JP;

Naokatsu Ikegami, Fujimino-city, JP;

Shuji Katakami, Fujimino-city, JP;

Assignees:

DENSO CORPORATION, Kariya-city, JP;

TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;

MIRISE Technologies Corporation, Nisshin, JP;

Nisshinbo Micro Devices Inc., Tokyo, JP;

Attorney:

Posz Law Group, PLC

Primary Examiner:

Emily P Pham

Assistant Examiner:

Monica undefined Mata

Int. Cl.
CPC ...
H01L 41/18 (2006.01); H01L 41/047 (2006.01); H01L 41/08 (2006.01); H01L 41/22 (2013.01); H10N 30/00 (2023.01); H10N 30/01 (2023.01); H10N 30/85 (2023.01); H10N 30/87 (2023.01);
U.S. Cl.
CPC ...
H10N 30/85 (2023.02); H10N 30/01 (2023.02); H10N 30/704 (2024.05); H10N 30/877 (2023.02);
Abstract

A piezoelectric device includes a base member, a first conductive film arranged above the base member in contact with an upper surface of the base member, a piezoelectric film arranged above the first conductive film in contact with an upper surface of the first conductive film, a second conductive film arranged on the piezoelectric film, and an insulating portion provided inside a trench penetrating through the piezoelectric film and the first conductive film. The insulating portion has a higher electrical resistivity than the piezoelectric film.

Find Patent Forward Citations

Sakurai, Yuya. (2026). Piezoelectric device with insulating portion provided inside trench (U.S. Patent No. 12610745). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12610745

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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