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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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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 × 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.

Subjects: 1900 Biomedical engineering > 1900 Biomedical engineering
2500 Electrical and electronic engineering > 2500 Electrical and electronic engineering
2500 Electrical and electronic engineering > 2504 Integrated circuits
Department: Department of Electrical Engineering
Funders: Japan Science and Technology Agency, Japan Society for the Promotion of Science, VLSI Design and Education Centre (VDEC), University of Tokyo, Cadence Corporation, Mentor Graphics Corporation
Grant number: PRESTO #JPMJPR1689, KAKENHI #15KK0209, KAKENHI #17H02222
PolyPublie URL: https://publications.polymtl.ca/3575/
Journal Title: AIP Advances (vol. 8, no. 4)
Publisher: AIP Publishing
DOI: 10.1063/1.5024243
Official URL: https://doi.org/10.1063/1.5024243
Date Deposited: 10 Mar 2020 10:47
Last Modified: 05 Apr 2024 20:00
Cite in APA 7: Tokuda, T., Ishizu, T., Nattakarn, W., Haruta, M., Noda, T., Sasagawa, K., Sawan, M., & Ohta, J. (2018). 1 mm3-sized optical neural stimulator based on CMOS integrated photovoltaic power receiver. AIP Advances, 8(4), 045018. https://doi.org/10.1063/1.5024243

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