Multiple layer electrode transducers
US12139394B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2021 |
| Grant date | Nov 12, 2024 |
| Priority date | — |
| Expiry date | Feb 11, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2201/003
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An electrostatic transducer includes a substrate oriented in a plane, a fixed electrode supported by the substrate, and a moveable electrode supported by the substrate, spaced from the fixed electrode in a first direction parallel to the plane, and configured for movement in a second direction transverse to the plane, such that an extent to which the fixed and moveable electrodes overlap changes during the movement. The fixed and moveable electrodes comprise one or more of a plurality of conductive layers, the plurality of conductive layers including at least three layers. The fixed electrode includes a stacked arrangement of two or more spaced apart conductive layers of the plurality of conductive layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.