Image sensor
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United States of America Patent
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Aug 27, 2024
Grant Date -
May 25, 2023
app pub date -
Nov 14, 2022
filing date -
Nov 25, 2021
priority date (Note) -
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status (Latency Note)
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Abstract
An image sensor includes a pixel array where each pixel is formed in a portion of a substrate electrically insulated from other portions of the substrate. Each pixel includes a photodetector; a transfer transistor; and a readout circuit comprising one or a plurality of transistors. The transistors of the readout circuit are formed inside and on top of at least one well of the portion. The reading from the photodetector of a pixel of a current row uses at least one transistor of the readout circuit of a pixel of at least one previous row, the well of the pixel of the previous row being biased with a first voltage greater than a second bias voltage of the well of the pixel of the current row.
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