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
Subjects
ANALOGOUS ARRANGEMENTS USING OTHER WAVES
BASIC ELECTRIC ELEMENTS
DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES
MEASURING
PHYSICS
RADIO DIRECTION-FINDING
RADIO NAVIGATION
SEMICONDUCTOR DEVICES
TESTING
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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