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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 12389799 B1

PDFFull Text
Date of Patent:
Aug. 12, 2025

Filed:

Nov. 20, 2023

Piezoelectric device and method of forming the same

Applicant:

Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;

Inventor:

Chih-Ming Chen, Hsinchu, TW;

Assignee:

Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;

Attorney:

JCIPRNET

Primary Examiner:

Eduardo A Rodela

Int. Cl.
CPC ...
H10N 30/50 (2023.01); H10N 30/00 (2023.01); H10N 30/076 (2023.01); H10N 30/853 (2023.01); H10N 30/87 (2023.01); G02B 3/14 (2006.01); G02B 26/00 (2006.01); H10N 30/01 (2023.01); H10N 30/20 (2023.01);
U.S. Cl.
CPC ...
H10N 30/708 (2024.05); H10N 30/076 (2023.02); H10N 30/501 (2023.02); H10N 30/853 (2023.02); H10N 30/871 (2023.02); H10N 30/872 (2023.02); G02B 3/14 (2013.01); G02B 26/004 (2013.01); H10N 30/01 (2023.02); H10N 30/204 (2023.02);
Abstract

A piezoelectric device including a substrate, a metal-insulator-metal element, a hydrogen blocking layer, a passivation layer, a first contact terminal and a second contact terminal is provided. The metal-insulator-metal element is disposed on the substrate. The hydrogen blocking layer is disposed on the metal-insulator-metal element. The passivation layer covers the hydrogen blocking layer and the metal-insulator-metal element. The first contact terminal is electrically connected to the metal-insulator-metal element. The second contact terminal is electrically connected to the metal-insulator-metal element.

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