Piezoelectric element, piezoelectric vibrator and manufacturing method thereof, and electronic device
US12239021B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 27, 2021 |
| Grant date | Feb 25, 2025 |
| Priority date | — |
| Expiry date | Dec 28, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/874
Abstract
The present disclosure provides a piezoelectric element, a piezoelectric vibrator, and a manufacturing method thereof, and an electronic device, and the present disclosure relates to the field of piezoelectric technologies. In the present disclosure, the piezoelectric element is provided with a first electrode and a second electrode positioned on the first electrode. The second electrode is provided with an opening where the first electrode is exposed. A piezoelectric structure is further arranged in the piezoelectric element. The piezoelectric structure includes a first piezoelectric portion and a second piezoelectric portion arranged around the first piezoelectric portion. The first piezoelectric portion is arranged in the opening and is in contact with the first electrode, the second piezoelectric portion is arranged on a side of the second electrode away from the first electrode, and the second piezoelectric portion has orientation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.