Acoustics transducer
US8340328B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2010 |
| Grant date | Dec 25, 2012 |
| Priority date | — |
| Expiry date | Apr 26, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R19/005
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
According to an embodiment of the disclosure, an acoustics transducer is provided, which includes a support substrate having an upper surface and a lower surface, the upper surface including a first portion and a second portion surrounding the first portion, a recess extending from the upper surface towards the lower surface, the recess is between the first portion and the second portion of the upper surface, a vibratable membrane disposed directly on the recess, the vibratable membrane including a fixed portion fixed on the support substrate and a suspended portion, and a back plate disposed on the support substrate and opposite to the vibratable membrane. The suspended portion has an edge extending substantially along with an edge of an opening of the recess. The suspended portion is separated from the first portion and the second portion of the upper surface by an inner interval and an outer interval, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.