Surface mount type piezoelectric vibrator, oscillator, electronic device, and radio clock
US7358652B2 · kind B2 · utility
3Cited by
2References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2006 |
| Grant date | Apr 15, 2008 |
| Priority date | — |
| Expiry date | Jan 22, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A surface mount type piezoelectric vibrator comprises a piezoelectric vibrator piece having an electrode, an airtight container made of glass or a ceramic material for encapsulating the piezoelectric vibrator piece, and an external terminal formed on an exterior surface of the airtight container and connected to the electrode of the piezoelectric vibrator piece. The external terminal comprises a metal alloy of Ni and Cr. A film of Au is formed on a surface of the metal alloy of Ni and Cr.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.