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1 mm3-sized optical neural stimulator based on CMOS integrated photovoltaic power receiver

Takashi Tokuda, Takaaki Ishizu, Wuthibenjaphonchai Nattakarn, Makito Haruta, Toshihiko Noda, Kiyotaka Sasagawa, Mohamad Sawan and Jun Ohta

Article (2018)

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Cite this document: Tokuda, T., Ishizu, T., Nattakarn, W., Haruta, M., Noda, T., Sasagawa, K., ... Ohta, J. (2018). 1 mm3-sized optical neural stimulator based on CMOS integrated photovoltaic power receiver. AIP Advances, 8(4). doi:10.1063/1.5024243
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Abstract

In this work, we present a simple complementary metal-oxide semiconductor (CMOS)-controlled photovoltaic power-transfer platform that is suitable for very small (less than or equal to 1–2 mm) electronic devices such as implantable healthcare devices or distributed nodes for the Internet of Things. We designed a 1.25 mm x 1.25 mm CMOS power receiver chip that contains integrated photovoltaic cells.We characterized the CMOS-integrated power receiver and successfully demonstrated blue light-emitting diode (LED) operation powered by infrared light. Then, we integrated the CMOS chip and a few off-chip components into a 1-mm3 implantable optogenetic stimulator, and demonstrated the operation of the device.

Open Access document in PolyPublie
Subjects: 1900 Génie biomédical > 1900 Génie biomédical
2500 Génie électrique et électronique > 2500 Génie électrique et électronique
2500 Génie électrique et électronique > 2504 Circuits intégrés
Department: Département de génie électrique
Research Center: Non applicable
Funders: Japan Science and Technology Agency, Japan Society for the Promotion of Science
Grant number: JPMJPR1689, 15KK0209, 17H02222
Date Deposited: 10 Mar 2020 10:47
Last Modified: 11 Mar 2020 01:20
PolyPublie URL: https://publications.polymtl.ca/3575/
Document issued by the official publisher
Journal Title: AIP Advances (vol. 8, no. 4)
Publisher: AIP Publishing
Official URL: https://doi.org/10.1063/1.5024243

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