CPC H10F 39/809 (2025.01) [H01L 21/76898 (2013.01); H01L 23/481 (2013.01); H04N 23/00 (2023.01); H04N 25/76 (2023.01); H04N 25/79 (2023.01); H10F 39/018 (2025.01); H10F 39/026 (2025.01); H10F 39/18 (2025.01); H10F 39/182 (2025.01); H10F 39/199 (2025.01); H10F 39/8037 (2025.01); H10F 39/8053 (2025.01); H10F 39/8063 (2025.01); H10F 39/811 (2025.01); H01L 2224/11 (2013.01)] | 20 Claims |
1. An image sensor, comprising:
a first semiconductor section including a first semiconductor substrate and a first wiring layer, the first semiconductor substrate including a photodiode, and the first wiring layer including a first insulating interlayer and first and second wirings; and
a second semiconductor section including a second semiconductor substrate and a second wiring layer, the second semiconductor section including a transistor, and the second wiring layer including a second insulating interlayer and third and fourth wirings,
wherein the first semiconductor section and the second semiconductor section are bonded together such that the first wiring layer and the third wiring layer face each other,
wherein the first wiring of the first wiring layer directly contacts the third wiring of the second wiring layer in a pixel region including the photodiode, and
wherein the second wiring of the first wiring layer directly contacts the fourth wiring of the second wiring layer in a peripheral region other than the pixel region.
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