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Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2019/087922
Kind Code:
A piezoelectric element comprises a piezoelectric body having a first main surface and a second main surface opposite of each other, and multiple external electrodes arranged on the first main surface. A vibration member has a third main surface facing the second main surface. The piezoelectric element is bonded to the third main surface. A wiring member is electrically connected to the piezoelectric element. The wiring member is positioned on the multiple external electrodes, and has a region bonded to the multiple external electrodes. The region of the wiring member integrally covers the multiple external electrodes seen from the direction orthogonal to the first main surface.

OHTA Yoshiki (3-9-1 Shibaura, Minato-k, Tokyo 23, 〒1080023, JP)
TACHIMOTO Kazushi (3-9-1 Shibaura, Minato-k, Tokyo 23, 〒1080023, JP)
SAKAMOTO Hideya (3-9-1 Shibaura, Minato-k, Tokyo 23, 〒1080023, JP)
TANIGUCHI Tetsuyuki (3-9-1 Shibaura, Minato-k, Tokyo 23, 〒1080023, JP)
TAKI Tatsuya (3-9-1 Shibaura, Minato-k, Tokyo 23, 〒1080023, JP)
TAKEDA Tomohiro (3-9-1 Shibaura, Minato-k, Tokyo 23, 〒1080023, JP)
TAKEDA Akihiro (3-9-1 Shibaura, Minato-k, Tokyo 23, 〒1080023, JP)
Application Number:
Publication Date:
May 09, 2019
Filing Date:
October 25, 2018
Export Citation:
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TDK CORPORATION (2-5-1, Nihonbashi Chuo-k, Tokyo 28, 〒1036128, JP)
International Classes:
H01L41/047; B06B1/06; H01L41/053; H01L41/09; H03H9/17; H04R7/04; H04R17/00
Domestic Patent References:
Foreign References:
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (SOEI PATENT AND LAW FIRM, Marunouchi MY PLAZA 9th fl. 1-1, Marunouchi 2-chome, Chiyoda-k, Tokyo 05, 〒1000005, JP)
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