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:
Jun. 25, 2013
Filed:
Oct. 13, 2010
Toru Yamaji, Osaka, JP;
Tetsuhiro Korechika, Osaka, JP;
Koji Kawakita, Nara, JP;
Eiji Kawamoto, Osaka, JP;
Mitsuhiro Furukawa, Hyogo, JP;
Kozo Murakami, Osaka, JP;
Toru Yamaji, Osaka, JP;
Tetsuhiro Korechika, Osaka, JP;
Koji Kawakita, Nara, JP;
Eiji Kawamoto, Osaka, JP;
Mitsuhiro Furukawa, Hyogo, JP;
Kozo Murakami, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An elastic wave device has the following elements: a piezoelectric substrate; an inter-digital transducer (IDT) electrode disposed on the piezoelectric substrate; internal electrodes disposed above the piezoelectric substrate and electrically connected to the IDT electrode; side walls disposed above the internal electrodes surrounding the IDT electrode; a cover disposed above the side walls so as to cover a space above the IDT electrode; an electrode base layer disposed on the internal electrodes outside the side walls; and connection electrodes disposed on the electrode base layer. Each connection electrode has a first connection electrode disposed on the electrode base layer, and a second connection electrode disposed on the first connection electrode. The horizontal sectional shape of the second connection electrode is non-circular.