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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 11533038 B1

PDFFull Text
Date of Patent:
Dec. 20, 2022

Filed:

Nov. 28, 2018

Elastic wave device

Applicant:

Murata Manufacturing Co., Ltd., Nagaokakyo, JP;

Inventor:

Daisuke Fukuda, Nagaokakyo, JP;

Assignee:

MURATA MANUFACTURING CO., LTD., Kyoto, JP;

Attorney:

Keating & Bennett, LLP

Primary Examiner:

Derek J Rosenau

Int. Cl.
CPC ...
H03H 9/02 (2006.01); H03H 9/10 (2006.01); H03H 3/08 (2006.01); H03H 9/145 (2006.01); H03H 9/25 (2006.01); H03H 9/64 (2006.01); H03H 9/05 (2006.01); H01L 41/047 (2006.01);
U.S. Cl.
CPC ...
H03H 9/02897 (2013.01); H03H 3/08 (2013.01); H03H 9/02551 (2013.01); H03H 9/02559 (2013.01); H03H 9/02984 (2013.01); H03H 9/059 (2013.01); H03H 9/1092 (2013.01); H03H 9/145 (2013.01); H03H 9/25 (2013.01); H03H 9/6489 (2013.01); H01L 41/0477 (2013.01);
Abstract

An elastic wave device includes a substrate, an IDT electrode, a spacer layer, a cover, and a protective layer. The spacer layer is provided on the substrate and surrounds the IDT electrode. The cover is provided on the spacer layer, is spaced apart from the IDT electrode, and includes a first main surface adjacent to the spacer layer and a second main surface facing the first main surface. The protective layer includes a third main surface contacting the second main surface, a fourth main surface facing the third main surface, and a side surface connected to the fourth main surface. In at least portion of the side surface of the protective layer, a portion including an intersection line between the side surface and the fourth main surface is located farther inward than an outer edge of the substrate in plan view in the thickness direction of the substrate.

Find Patent Forward Citations

Fukuda, Daisuke. (2022). Elastic wave device (U.S. Patent No. 11533038). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11533038

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

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