Optical Powering Platform for Ultra-Small Implantable Devices

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  • Tokuda Takashi
    Institute of Innovative Research, Tokyo Institute of Technology
  • Yokoshiki Yasufumi
    Institute of Innovative Research, Tokyo Institute of Technology
  • Takehara Hironari
    Division of Materials Science, Nara Institute of Science and Technology
  • Haruta Makito
    Division of Materials Science, Nara Institute of Science and Technology
  • Sasagawa Kiyotaka
    Division of Materials Science, Nara Institute of Science and Technology
  • Ohta Jun
    Division of Materials Science, Nara Institute of Science and Technology

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Other Title
  • 超小型インプラント向け光電力伝送技術
  • チョウコガタ インプラント ムケ ヒカリデンリョク デンソウ ギジュツ

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Abstract

<p>A CMOS-based optical powering platform is proposed and demonstrated. Adopting an operation scheme with “charge and intermittent operation”, we realized the optical powering platform that can drive blue LED and other electronics operating at 3V or higher. The minimum required area for solar cell system is as small as 1 mm2, and an implantable optical stimulation device for optogenetics with a volume of 1 mm3 was realized. It was also demonstrated that the proposed system is compatible with sequential operation, which is essential for intelligent biosensing and other applications including IoT and IoE (Internet of Everything) technology.</p>

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