Light shield for CMOS imager
US8383440B2 · kind B2 · utility
4Cited by
13References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 6, 2011 |
| Grant date | Feb 26, 2013 |
| Priority date | — |
| Expiry date | Aug 29, 2031 |
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.