Pixel array and an image sensor including the same
US12302659B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 16, 2021 |
| Grant date | May 13, 2025 |
| Priority date | — |
| Expiry date | Sep 10, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/813
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A pixel array including: a plurality of pixel groups, each pixel group including: a plurality of unit pixels respectively including photoelectric conversion elements disposed in a semiconductor substrate; trench structures disposed in the semiconductor substrate and extending in a vertical direction from a first surface of the semiconductor substrate to a second surface of the semiconductor substrate to electrically and optically separate the photoelectric conversion elements from each other; and a microlens disposed above or below the semiconductor substrate, the microlens covering all of the photoelectric conversion elements in the plurality of unit pixels to focus an incident light to the photoelectric conversion elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.