PHOTOELECTRIC CONVERSION APPARATUS AND OPTICAL DETECTION SYSTEM
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United States of America Patent
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Oct 24, 2024
app pub date -
Jul 1, 2024
filing date -
Jul 1, 2024
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Abstract
A photoelectric conversion apparatus includes a pixel including a photoelectric conversion unit for outputting a first signal in response to incidence of a photon, the photoelectric conversion unit including an avalanche diode for multiplying a charge occurring from the incidence of the photon by avalanche multiplication, a counter for counting a signal output from the photoelectric conversion unit, and a signal processing circuit connected between the counter and the photoelectric conversion unit and configured to control output of a third signal based on the first signal and a second signal. The signal processing circuit includes a first element having a first withstand voltage and a second element having a second withstand voltage and is configured such that the first signal is input to the first element and the second signal is input to the second element, the second withstand voltage being a withstand voltage lower than the first withstand voltage.
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