Image sensing device including noise blocking structure
US10811452B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2019 |
| Grant date | Oct 20, 2020 |
| Priority date | — |
| Expiry date | Jul 2, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/807
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image sensing device including a noise blocking structure is disclosed. The image sensing device includes a semiconductor substrate structured to support a plurality of image pixels producing signals upon a detection of an incident light and a logic circuit configured to process signals produced by the image pixels are formed, and a noise blocking structure disposed at the semiconductor substrate and formed to surround the logic circuit is formed. The noise blocking structure includes a first blocking structure and a second blocking structure. The first blocking structure includes multiple portions spaced from one another, each of the multiple portions extending in a line without any bending portion. The second blocking structure are disposed between the multiple portions of the first blocking structure and include portions partially overlapping with the first blocking structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.