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Solid-state imaging device, a single-plate color solid-state imaging device and electronic equipment
Solid-state imaging device, a single-plate color solid-state imaging device and electronic equipment
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机译:固态成像装置,单板彩色固态成像装置和电子设备
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摘要
An image sensor includes an imaging area including a plurality of cells arrayed in a matrix on a semiconductor substrate, each of the cells including an avalanche photodiode, the avalanche photodiode including: an anode region buried in an upper portion of the semiconductor substrate; a cathode region buried in the upper portion of the semiconductor substrate separated from the anode region in a direction parallel to the surface of the semiconductorsubstrate;and anavalanche multiplication region defined between the anode and cathode regions, the avalanche multiplication region having an impurity concentration less than the anode and cathode regions; wherein depths of the anode and cathode regions from the surface of the semiconductor substrate are different from each other.
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