CPC H01L 27/14621 (2013.01) [H01L 27/1463 (2013.01); H01L 27/1464 (2013.01); H01L 27/14685 (2013.01); H04N 25/40 (2023.01); H01L 27/14627 (2013.01)] | 20 Claims |
11. An image sensor comprising:
a substrate comprising a first surface and a second surface opposite to the first surface;
four unit pixels, wherein each of the four unit pixels comprises two photoelectric conversion regions;
a filter unit comprising four filters, wherein each of the four filters is on the two photoelectric conversion regions in each of the four unit pixels;
a first isolation layer between adjacent ones of the four unit pixels; and
a second isolation layer between the two photoelectric conversion regions in each of the four unit pixels,
wherein the four filters comprise a cyan color filter and a red color filter,
wherein the four unit pixels are arranged in a two-by-two array, and
wherein the image sensor is configured to receive light through the second surface.
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