CMOS-based color pixel with reduced noise in the blue signal
US6150683A · kind A · utility
68Cited by
4References
20Claims
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Key dates
| Filing date | Jun 27, 1997 |
| Grant date | Nov 21, 2000 |
| Priority date | — |
| Expiry date | Jun 27, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/50
Abstract
The blue signal of a CMOS-based color pixel is increased with respect to the red and green signals by lowering the doping concentration of the surface regions of the pn-junction photodiodes that are used in the blue imaging cells with respect to the surface regions of the pn-junction photodiodes that are used in the red and green imaging cells.
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