Image sensing device and method of forming the same
US11404464B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 2020 |
| Grant date | Aug 2, 2022 |
| Priority date | — |
| Expiry date | Jan 14, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/23
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image sensing device is provided. The image sensing device includes a substrate, a plurality of photosensitive elements, a dielectric layer, a reflector, a color filter, and a microlens structure. The substrate has a first pixel and a second pixel adjacent to the first pixel, and the substrate has a front side and a back side opposite the front side. The photosensitive elements are disposed in the substrate. The dielectric layer is disposed on the back side of the substrate. The reflection is disposed on the front side of the substrate and has a parabolic surface. The color filter layer is disposed on the dielectric layer. The microlens structure is disposed on the color filter layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.