Image sensor including shared pixels
US11282875B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 28, 2020 |
| Grant date | Mar 22, 2022 |
| Priority date | — |
| Expiry date | Jun 6, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/807
Abstract
An image sensor may include a first shared pixel region and a first isolation layer on a substrate, the first isolation layer defining the first shared pixel region. The first shared pixel region may include photo-sensing devices in sub-pixel regions and a first floating diffusion region connected to the photo-sensing devices. The sub-pixel regions may include a first sub-pixel region and a second sub-pixel region that constitute a first pixel group region. The sub-pixel regions may include a third sub-pixel region and a fourth sub-pixel region that constitute a second pixel group region. The first shared pixel region may include first and second well regions doped with first conductivity type impurities. The second well region may be spaced apart from the first well region. The first pixel group region may share a first well region. The second pixel group region may share the second well region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.