Surface-mount crystal oscillator having an opened portion of the sidewalls
US6967537B2 · kind B2 · utility
7Cited by
2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2003 |
| Grant date | Nov 22, 2005 |
| Priority date | — |
| Expiry date | Aug 11, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B5/32
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A surface-mounted crystal oscillator has a quartz crystal unit and a receptacle which is joined to the rear surface of the crystal unit for accommodating an IC (Integrated Circuit) chip. The receptacle has a bottom wall and sidewalls, and further, a concavity formed in at least one of its principal surfaces. The sidewalls surrounding the concavity are opened on at least one end of the receptacle, and at this opened end, the bottom wall is exposed and a notch portion is formed in the bottom wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.