Photoelectric conversion apparatus and equipment comprising a light shielding part in a light receiving region and a light shielding film in a light shielded region
US11121160B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2019 |
| Grant date | Sep 14, 2021 |
| Priority date | — |
| Expiry date | Oct 15, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/811
Abstract
Photoelectric conversion apparatus includes semiconductor layer having photoelectric converters in light-receiving region and photoelectric converters in light-shielded region, light-shielding part arranged above the semiconductor layer in the light-receiving region to surround light paths of the photoelectric converters in the light-receiving region, and light-shielding film arranged above the semiconductor layer in the light-shielded region to cover the photoelectric converters in the light-shielded region. The light-shielding part includes lower and upper ends. The light-shielding film includes lower and upper surfaces. Distance between the upper end and the semiconductor layer is larger than that between the upper surface and the semiconductor layer. Distance between the lower end and the semiconductor layer is smaller than that between the upper surface and the semiconductor layer and is larger than that between the lower surface and the semiconductor layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.