Piezoelectric vibration device and method for manufacturing the same
US10784836B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2017 |
| Grant date | Sep 22, 2020 |
| Priority date | — |
| Expiry date | Jun 29, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H2003/022
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A piezoelectric vibration device that includes a piezoelectric vibrator having excitation electrodes formed thereon; a base having the piezoelectric vibrator on a first surface thereof; outer electrodes formed to continuously extend from the first surface of the base through a side face of the base to a second surface of the base opposite the first surface; and a lid having a recess opening that faces the first surface of the base, the lid being joined to the base to hermetically seal the piezoelectric vibrator in an internal space defined by the recess and the base. An edge portion of a corresponding one of the outer electrodes, formed by the first surface and the side face of the base, is at least partly covered by a covering member having insulating properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.