Electro-acoustic sensing device
US8039910B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2007 |
| Grant date | Oct 18, 2011 |
| Priority date | — |
| Expiry date | Mar 5, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/3025
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An electro-acoustic sensing device including a sensing chip, a carrier chip and a sealing element is provided. The sensing chip is for electro-acoustic transuding and thereby outputting an electrical signal. The carrier chip disposed below the sensing chip has at least one second connecting point, at least one electrical channel and at least one channel connecting point. The second connecting point is electrically contacted with the first connecting point. The second connecting point and the channel connecting point are located at different surfaces of the carrier chip. The electrical channel passes through the carrier chip and electrically connects the second connecting point and the channel connecting point. The electrical signal is transmitted to the channel connecting point via the first and the second connecting points and the electrical channel. The sealing element is disposed between the sensing chip and the carrier chip for air-tight coupling the two chips.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.