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:
Oct. 20, 2020
Filed:
Jun. 07, 2018
Applicant:
Taiyo Yuden Co., Ltd., Tokyo, JP;
Inventors:
Masafumi Iwaki, Tokyo, JP;
Takashi Matsuda, Tokyo, JP;
Assignee:
TAIYO YUDEN CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H 9/02 (2006.01); H03H 9/72 (2006.01); H03H 9/25 (2006.01); H03H 9/64 (2006.01); H03H 9/145 (2006.01);
U.S. Cl.
CPC ...
H03H 9/02834 (2013.01); H03H 9/02559 (2013.01); H03H 9/02574 (2013.01); H03H 9/02858 (2013.01); H03H 9/02866 (2013.01); H03H 9/02992 (2013.01); H03H 9/14541 (2013.01); H03H 9/14552 (2013.01); H03H 9/25 (2013.01); H03H 9/6483 (2013.01); H03H 9/725 (2013.01);
Abstract
An acoustic wave resonator includes: a piezoelectric substrate that is a lithium tantalate substrate or a lithium niobate substrate and has a thickness of 20 μm or less; a support substrate that has an upper surface bonded with a lower surface of the piezoelectric substrate And is a glass substrate mainly composed of silicon oxide; a plurality of electrode fingers that are located on an upper surface of the piezoelectric substrate, excite an acoustic wave, and include a metal film mainly composed of at least one of Cr, Mo, and W.