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:
Apr. 10, 2018
Filed:
Jul. 29, 2014
Applicant:
Murata Manufacturing Co., Ltd., Nagaokakyo-shi, Kyoto-fu, JP;
Inventor:
Tadaji Takemura, Nagaokakyo, JP;
Assignee:
Murata Manufacturing Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/25 (2006.01); H01L 41/053 (2006.01); H03H 9/10 (2006.01); H01L 23/31 (2006.01); B81B 7/00 (2006.01); H01L 23/367 (2006.01);
U.S. Cl.
CPC ...
H01L 41/0533 (2013.01); B81B 7/0051 (2013.01); H01L 23/3121 (2013.01); H01L 23/3128 (2013.01); H03H 9/1071 (2013.01); H01L 23/3677 (2013.01); H01L 2924/0002 (2013.01);
Abstract
An electronic component element includes a piezoelectric substrate and a comb-shaped electrode located on one principal surface of the piezoelectric substrate. A support layer is arranged around the comb-shaped electrode. A cover layer is disposed so as to cover the support layer and the comb-shaped electrode. Via-hole electrodes extend through the cover layer and are connected to the comb-shaped electrode. An uneven portion is located on a principal surface of the cover layer that is opposite to a principal surface of the cover layer that is opposed to the comb-shaped electrode.