Multilayer piezoelectric element and vibrating device
US11189777B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2018 |
| Grant date | Nov 30, 2021 |
| Priority date | — |
| Expiry date | Oct 15, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/88
Abstract
A multilayer piezoelectric element includes a piezoelectric element body, a first internal electrode and a second internal electrode, a plurality of first connecting conductors, a plurality of second connecting conductors, and an external member. The piezoelectric element body is formed by laminating a plurality of piezoelectric element body layer. The piezoelectric element body includes a first main surface and a second main surface, and a side surface. The plurality of first connecting conductors are connected to the first internal electrode. The plurality of second connecting conductors are connected to the second internal electrode. The external member is conductive and is bonded to the first main surface in such a way as to cover the first end portions of the plurality of first connecting conductors. The external member is electrically connected to the plurality of first connecting conductors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.