Quartz vibrator having a dome-shaped cap
US9627603B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 4, 2014 |
| Grant date | Apr 18, 2017 |
| Priority date | — |
| Expiry date | Jul 25, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H9/105
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A quartz vibrator that includes a substrate, a quartz vibrating element, and a dome-shaped cap. The quartz vibrating element is mounted on the substrate. The cap is bonded to the substrate. The cap defines and forms a sealed space that seals the quartz vibrating element along with the substrate. The cap has a side wall portion, a ceiling portion, and a connecting portion. The side wall portion encloses the quartz vibrating element. The ceiling portion is positioned above the quartz vibrating element. The connecting portion connects the side wall portion and the ceiling portion. The connecting portion is thinner than the side wall portion and the ceiling portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.