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, 2012
Filed:
Aug. 24, 2009
Masanori Kimura, Yokohama, JP;
Shunichi Aikawa, Yokohama, JP;
Keji Tsuda, Yokohama, JP;
Hikomasa Oshita, Yokohama, JP;
Masanori Kimura, Yokohama, JP;
Shunichi Aikawa, Yokohama, JP;
Keji Tsuda, Yokohama, JP;
Hikomasa Oshita, Yokohama, JP;
Taiyo Yuden Co., Ltd., Tokyo, JP;
Abstract
An acoustic wave device includes: a piezoelectric substrate on which an acoustic wave element and an electrode pad connected to the acoustic wave element are formed; a first resin part having a first opening located above a function area in which an acoustic wave is excited by the acoustic wave element and a second opening located above the electrode pad; a second resin part that covers the first opening and has a third opening located above the second opening; and a metal layer formed on the electrode pad in the second opening, the first opening and the second opening being inversely tapered.