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.

Date of Patent:
Oct. 11, 2022

Filed:

Nov. 18, 2019
Applicant:

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

Inventors:

Munehisa Watanabe, Nagaokakyo, JP;

Hideki Iwamoto, Nagaokakyo, JP;

Harunobu Horikawa, Nagaokakyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/145 (2006.01); H03H 9/64 (2006.01); H03H 9/72 (2006.01); H03H 9/02 (2006.01); H01L 41/047 (2006.01); H04B 1/00 (2006.01);
U.S. Cl.
CPC ...
H03H 9/14541 (2013.01); H01L 41/047 (2013.01); H03H 9/02559 (2013.01); H03H 9/02992 (2013.01); H03H 9/6483 (2013.01); H03H 9/725 (2013.01); H04B 1/0057 (2013.01);
Abstract

In an acoustic wave device, a piezoelectric body is directly or indirectly provided on a high acoustic velocity material layer, an interdigital transducer electrode is directly or indirectly provided on the piezoelectric body, the interdigital transducer electrode includes a first busbar, a second busbar spaced away from the first busbar, a plurality of first electrode fingers, and a plurality of second electrode fingers, and a weighting is applied to the interdigital transducer electrode by providing a floating electrode finger not electrically connected to the first busbar or the second busbar or applied by providing an electrode finger formed by metallizing a gap between the first electrode fingers or a gap between the second electrode fingers to integrate the first electrode fingers or the second electrode fingers.


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