Micromachined horn
US9088850B2 · kind B2 · utility
1Cited by
20References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2012 |
| Grant date | Jul 21, 2015 |
| Priority date | — |
| Expiry date | Jul 22, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/42
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An acoustic device includes a transducer formed on a first surface of a substrate and an acoustic horn formed in the substrate by a dry-etching process through an opposing second surface of the substrate. The acoustic horn is positioned to amplify sound waves from the transducer and defines a non-linear cross-sectional profile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.