CPC H04N 25/58 (2023.01) [H01L 27/1464 (2013.01); H01L 27/14627 (2013.01); H01L 27/14656 (2013.01); H04N 25/63 (2023.01)] | 19 Claims |
1. An image sensor comprising:
a photodiode in a front side of a substrate and configured to accumulate charge generated by scenery light;
a first storage node configured to store the accumulated charge from the photodiode;
a second storage node configured to store charge generated by parasitic light; and
optical diffracting structures in a back side of the substrate.
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