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A Pixel Design of a Branching Ultra-Highspeed Image Sensor.

Nguyen Hoai Ngo1, Kazuhiro Shimonomura1, Taeko Ando1

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This summary is machine-generated.

The Hanabi burst image sensor uses a novel design to capture 12-48 consecutive images, overcoming limitations of traditional CCD and CMOS sensors for high-speed imaging applications.

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Area of Science:

  • * Imaging Technology
  • * Sensor Design
  • * High-Speed Photography

Background:

  • * Traditional burst image sensors face trade-offs between frame rate, pixel count, and noise.
  • * Charge-Coupled Device (CCD) sensors offer noiseless transfer but have large pixel sizes.
  • * Complementary Metal-Oxide-Semiconductor (CMOS) sensors have smaller pixels but suffer from transfer noise.

Purpose of the Study:

  • * To introduce the Hanabi burst image sensor, a novel design addressing limitations of existing technologies.
  • * To enable high frame rates with a reduced compromise between pixel and frame counts.
  • * To improve temporal resolution in burst imaging.

Main Methods:

  • * Development of a backside-illuminated sensor with a light/charge guide pipe.
  • * Implementation of a branching pixel architecture with multiple floating diffusions.
  • * Integration of in-pixel memory for storing consecutive images.

Main Results:

  • * The Hanabi sensor achieves high frame rates (12-48 images) with suppressed signal carrier motion.
  • * It overcomes the pixel count vs. frame count conflict inherent in CCD sensors.
  • * It mitigates the transfer noise issue associated with CMOS sensors at high frame rates.

Conclusions:

  • * The Hanabi sensor provides a superior solution for burst imaging by combining the advantages of CCD and CMOS technologies.
  • * Its innovative design enables high-speed image capture with improved signal integrity.
  • * This technology advances the field of high-performance imaging sensors.