Lidar system with crosstalk reduction comprising a power supply circuit layer stacked between an avalanche-type diode layer and a read-out circuit layer

A focal-plane array includes an array of pixels. Each pixel includes an avalanche-type diode on a first layer, a read-out circuit (ROIC) on a second layer, and a power-supply circuit on a middle layer stacked between the first layer and the second layer. Since each pixel includes the avalanche-type...

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Bibliographic Details
Main Author Smith, Elliot John
Format Patent
LanguageEnglish
Published 14.02.2023
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Summary:A focal-plane array includes an array of pixels. Each pixel includes an avalanche-type diode on a first layer, a read-out circuit (ROIC) on a second layer, and a power-supply circuit on a middle layer stacked between the first layer and the second layer. Since each pixel includes the avalanche-type diode, the ROIC, and the power-supply circuit on different layers circuitry for each pixel is in a top-down footprint of the pixel. Thus a consistent bias voltage to each pixel, decouples the avalanche-type diodes of the different pixels to eliminate crosstalk between adjacent pixels, and allows for individual control of each pixel.
Bibliography:Application Number: US202016997585