Chemical sensing device using fluorescent sensing material
US11474039B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 28, 2018 |
| Grant date | Oct 18, 2022 |
| Priority date | — |
| Expiry date | Aug 9, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12109
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The chemical sensing device comprises a substrate of semiconductor material, integrated circuit components and a photodetector formed in the substrate, a dielectric on the substrate, a wiring in the dielectric, and a source of electromagnetic radiation, a waveguide and a fluorescent sensor layer arranged in or above the dielectric. A portion of the waveguide is arranged to allow the electromagnetic radiation emitted by the source of electromagnetic radiation to be coupled into the waveguide. A further portion of the waveguide is arranged between the photodetector and the fluorescent sensor layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.