Patent ID: 7154157
Filing Date: 2006-12-26
Classification: H01L,H04N

Abstract:
1. A sensing structure, comprising: a first junction formed at a first depth in a semiconductor substrate to sense infrared radiation; and a second junction formed at a second depth in the semiconductor substrate to sense visible radiation, the second depth being less deep than the first depth, the second junction positioned to sense a red light component; a third junction formed at a third depth in the semiconductor substrate to sense a green light component; and a fourth junction formed at a fourth depth in the semiconductor substrate to sense a blue light component, the third depth being less deep than the second depth, and the fourth depth being less deep than the third depth; and an infrared-notch filter positioned above the fourth junction, and having a filter characteristic to substantially pass visible radiation and to substantially attenuate infrared radiation that has a wavelength that differs from a notch wavelength, and to substantially pass infrared radiation that has the notch wavelength.