| CPC H10F 39/807 (2025.01) [H10F 39/8053 (2025.01); H10F 39/8063 (2025.01); H10F 39/811 (2025.01)] | 18 Claims |
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1. An image sensor, comprising:
a substrate;
a pixel isolation pattern in the substrate and defining unit pixel regions in the substrate;
color filters on the substrate and corresponding to the unit pixel regions, respectively;
a low-refractive index pattern between adjacent color filters of the color filters to at least partially isolate the adjacent color filters from direct contact with each other;
an insulating structure between the substrate and the color filters; and
a light blocking pattern vertically overlapping with the pixel isolation pattern,
wherein the light blocking pattern is within the insulating structure and is isolated from direct contact with the low-refractive index pattern,
wherein a lowermost surface of the low-refractive index pattern is in direct contact with an uppermost surface of the insulating structure.
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