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US 2020/0368779 A1Published application
Vibration device and acoustic device
AssigneeTDK Corporation
InventorsAkira SATOH, Yoshikazu SHIMURA, Kaoru KIJIMA
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Abstract
A vibration device includes a piezoelectric element and an adhesive layer. The piezoelectric element includes a first principal surface and a second principal surface opposing each other. The adhesive layer is disposed on the first principal surface and is in contact with the first principal surface. A tensile strength of the adhesive layer is 10 N/cm or more and 48 N/cm or less.
Claims4
A vibration device comprising:
- a piezoelectric element including first and second principal surfaces opposing each other;
- and
- an adhesive layer being disposed on the first principal surface and being in contact with the first principal surface,
- wherein a tensile strength of the adhesive layer is 10 N/cm or more and 48 N/cm or less.
1 more element
An acoustic device comprising:
- a piezoelectric element including first and second principal surfaces opposing each other;
- an adhesive layer being disposed on the first principal surface and being in contact with the first principal surface;
- and
- a vibration member being disposed such that the adhesive layer is located between the vibration member and the first principal surface and being in contact with the adhesive layer,
- wherein a tensile strength of the adhesive layer is 10 N/cm or more and 48 N/cm or less.
2 more elements
Dependencies are inferred from the claim text.