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:
Jan. 30, 2024
Filed:
Apr. 15, 2021
Applicant:
Ngk Insulators, Ltd., Nagoya, JP;
Inventors:
Assignee:
NGK INSULATORS, LTD., Nagoya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H 9/02 (2006.01); H03H 3/08 (2006.01);
U.S. Cl.
CPC ...
H03H 9/02574 (2013.01); H03H 3/08 (2013.01); H03H 9/02559 (2013.01);
Abstract
A bonded body includes a supporting substrate; a piezoelectric material substrate; a first bonding layer provided on the supporting substrate and having a composition of SiO(0.008≤x≤0.408); a second bonding layer provided on the piezoelectric material substrate and having a composition of SiO(0.008≤y≤0.408); and an amorphous layer provided between the first bonding layer and second bonding layer. The oxygen ratio of the amorphous layer is higher than the oxygen ratio of the first bonding layer and oxygen ratio of the second bonding layer.