公开(公告)号：US10897005B2

公开(公告)日：2021-01-19

申请号：US15890669

申请日：2018-02-07

Applicant: TDK CORPORATION

Inventor： Kaoru Kijima ,  Tatsuya Taki ,  Shunsuke Ueno ,  Atsushi Ezawa ,  Haruna Sumi ,  Tomohiro Takeda

IPC: H01L41/053 ,  H01L41/09

Abstract: A vibrating device includes a piezoelectric element, a resin member having electric insulation, a vibrating member made of metal, a first adhesive layer, and a second adhesive layer. The resin member includes a first principal surface and a second principal surface opposing each other. The vibrating member includes a third principal surface and a fourth principal surface opposing each other. The first adhesive layer joins the piezoelectric element and the first principal surface. The second adhesive layer joins the second principal surface and the third principal surface. An area of the resin member is greater than an area of the piezoelectric element, and an area of the vibrating member is greater than the area of the piezoelectric element. An area where the second adhesive layer adheres to the vibrating member is greater than an area where the first adhesive layer adheres to the resin member.

公开(公告)号：US11548030B2

公开(公告)日：2023-01-10

申请号：US16759593

申请日：2018-10-25

Applicant: TDK CORPORATION

Inventor： Yoshiki Ohta ,  Kazushi Tachimoto ,  Hideya Sakamoto ,  Tetsuyuki Taniguchi ,  Tatsuya Taki ,  Tomohiro Takeda ,  Akihiro Takeda

IPC: G01L9/00 ,  H01L21/00 ,  B06B1/06 ,  H01L41/047 ,  H01L41/083 ,  H01L41/09

Abstract: A piezoelectric element includes a piezoelectric element body including a first principal surface and a second principal surface opposing each other, and a plurality of external electrodes disposed on the first principal surface. A vibration member includes a third principal surface opposing the second principal surface. The piezoelectric element is joined to the third principal surface. A wiring member is electrically connected to the piezoelectric element. The wiring member includes a region located on the plurality of external electrodes and joined to the plurality of external electrodes. The region of the wiring member monolithically covers the plurality of external electrodes when viewed from a direction orthogonal to the first principal surface.