Capacitance-variable pressure sensor
US11043945B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Mar 22, 2019 |
| Grant date | Jun 22, 2021 |
| Priority date | — |
| Expiry date | Oct 4, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/9651
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A capacitance-variable pressure sensor is disclosed. The capacitance-variable pressure sensor includes a double layer flexible circuit board, a multi-layer ceramic capacitor, and a soft conductive pad. The multi-layer ceramic capacitor is positioned in adjacent to the soft conductive pad. The double layer flexible circuit board is configured with a through hole or a notch, and is positioned between the multi-layer ceramic capacitor and the soft conductive pad. The multi-layer ceramic capacitor is positioned above the through hole or notch, and the soft conductive pad is positioned under the through hole or notch. The multi-layer ceramic capacitor includes a first member and a second member. The first member includes an external electrode or a plurality of external electrodes. The second member includes a ceramic dielectric, and a plurality of internal electrode layers disposed inside the ceramic dielectric. Each external electrode is connected to internal electrode layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.