Light shield for CMOS imager
US7935994B2 · kind B2 · utility
15Cited by
13References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2005 |
| Grant date | May 3, 2011 |
| Priority date | — |
| Expiry date | Aug 21, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/811
Abstract
System and method for providing a light shield for a CMOS imager is provided. The light shield comprises a structure formed above a point between a photo-sensitive element and adjacent circuitry. The structure is formed of a light-blocking material, such as a metal, metal alloy, metal compound, or the like, formed in dielectric layers over the photo-sensitive elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.