Image sensor device with light blocking structure
US9324752B2 · kind B2 · utility
2Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2014 |
| Grant date | Apr 26, 2016 |
| Priority date | — |
| Expiry date | Feb 27, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/8063
Abstract
The disclosure provides an image sensor device and a manufacturing method. The image sensor device includes a semiconductor substrate and a light sensing region in the semiconductor substrate. The image sensor device also includes a light blocking structure in the semiconductor substrate and adjacent to the light sensing region. A sidewall of the light blocking structure is a curved surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.