Imaging device
Number of patents in Portfolio can not be more than 2000
United States of America
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Dec 31, 2024
Grant Date -
Jun 20, 2024
app pub date -
Dec 28, 2023
filing date -
Dec 28, 2023
priority date (Note) -
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Abstract
An imaging device of an embodiment has a first substrate, a second substrate, a wire, and a trench. The first substrate has a pixel having a photodiode and a floating diffusion that holds a charge converted by the photodiode. The second substrate has a pixel circuit that reads a pixel signal based on the charge held in the floating diffusion in the pixel, and is stacked on the first substrate. The wire penetrates the first substrate and the second substrate in a stacking direction, and electrically connects the floating diffusion in the first substrate to an amplification transistor in the pixel circuit of the second substrate. The trench is formed at least in the second substrate, runs in parallel with the wire, and has a depth equal to or greater than the thickness of a semiconductor layer in the second substrate.
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