| CPC H04N 25/75 (2023.01) [H01L 27/14621 (2013.01); H04N 25/704 (2023.01); H04N 25/772 (2023.01)] | 20 Claims |
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1. An image sensor comprising:
a first unit pixel region comprising:
a first plurality of photodiodes including a first photodiode, a second photodiode, a third photodiode, a fourth photodiode, a fifth photodiode, a sixth photodiode, a seventh photodiode, an eighth photodiode, and a ninth photodiode arranged in a 3×3 matrix;
a first color filter on the first plurality of photodiodes;
a first floating diffusion region shared by the first plurality of photodiodes; and
a first plurality of microlenses including a first microlens, a second microlens, a third microlens, a fourth microlens, a fifth microlens, a sixth microlens, a seventh microlens, an eighth microlens, and a ninth microlens, each of the first microlens, the second microlens, the third microlens, the fourth microlens, the fifth microlens, the sixth microlens, the seventh microlens, the eighth microlens, and the ninth microlens of the first plurality of microlenses is on the first photodiode, the second photodiode, the third photodiode, the fourth photodiode, the fifth photodiode, the sixth photodiode, the seventh photodiode, the eighth photodiode, and the ninth photodiode of the first plurality of photodiodes, respectively; and
a second unit pixel region comprising:
a second plurality of photodiodes including a first photodiode, a second photodiode, a third photodiode, a fourth photodiode, a fifth photodiode, a sixth photodiode, a seventh photodiode, an eighth photodiode, and a ninth photodiode arranged in the 3×3 matrix;
a second color filter on the second plurality of photodiodes;
a second floating diffusion region shared by the second plurality of photodiodes; and
a second plurality of microlenses including a first microlens, a second microlens, a third microlens, a fourth microlens, a fifth microlens, a sixth microlens, a seventh microlens, an eighth microlens, and a ninth microlens, each of the first microlens, the second microlens, the third microlens, the fourth microlens, the fifth microlens, the sixth microlens, the seventh microlens, the eighth microlens, and the ninth microlens of the second plurality of microlenses is on the first photodiode, the second photodiode, the third photodiode, the fourth photodiode, the fifth photodiode, the sixth photodiode, the seventh photodiode, the eighth photodiode, and the ninth photodiode of the second plurality of photodiodes, respectively,
wherein the first color filter is different from the second color filter, and
wherein the second unit pixel region is disposed directly adjacent to the first unit pixel region in a first direction.
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