MEMS microphone
US8331589B2 · kind B2 · utility
7Cited by
2References
14Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jan 1, 2010 |
| Grant date | Dec 11, 2012 |
| Priority date | — |
| Expiry date | Apr 18, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R19/04
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A MEMS microphone includes a cover, a housing engaging with the cover for forming a cavity. The housing includes a base and a sidewall extending perpendicularly from the base. A conductive case is provided to cover the cover and the sidewall of the housing. The base defines a periphery portion outside of the cavity for forming a step, and the conductive case locates a bottom end thereof on the step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.