Optical sensor
US10763297B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 31, 2019 |
| Grant date | Sep 1, 2020 |
| Priority date | — |
| Expiry date | May 31, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F77/337
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An optical sensor is provided. The optical sensor includes a substrate, a transistor, a dielectric layer, a first electrode, a photodiode, a second electrode and a gap. The transistor is disposed over the substrate. The dielectric layer is disposed over the transistor. The first electrode is disposed over the dielectric layer and includes a U-shaped portion electrically connected to the transistor. The second electrode is disposed over the first electrode, and the photodiode is disposed between the first electrode and the second electrode. The gap is surrounded by the U-shaped portion of the first electrode and is sealed by the first electrode or the second electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.