Surface sensor
US9396379B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2015 |
| Grant date | Jul 19, 2016 |
| Priority date | — |
| Expiry date | Jan 29, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/15321
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to a sensor for detection of properties and structures of an organic tissue and its surface, e.g., a fingerprint sensor comprising a chosen number of sensor electrodes at chosen positions for coupling to a finger tissue and its surface having a size less or comparable to the size of the structures, characteristics or properties of the finger tissue or surface, and a processing unit including electronic circuitry connected to said electrodes for detection of the voltage at, or the current flow in the electrodes, thereby providing for detection and collection of information of related capacitance, impedance, electromagnetic field, fingerprint, tissue aliveness or other biometric, physical, physiological, thermal or optical or characteristics or properties of the tissue or its surface positioned over the electrodes, the processing unit being mounted on one side of a substrate and the electrodes being embedded in said substrate, the substrate including through going first, second and third conductive paths between said sensor electrodes and said measurement circuitry. The substrate is made from a polymer material such as Polyimide, implemented as a rigid or a flex…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.