TY - GEN
T1 - Fabrication and Assembly Techniques for Distributed Battery-Free Brain Implants
AU - Khalifa, Adam
AU - Nasrollahpour, Mehdi
AU - Nezaratizadeh, Ali
AU - Sha, Xiao
AU - Stanacevic, Milutin
AU - Sun, Nian X.
AU - Cash, Sydney
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - In the past three decades, we have witnessed unprecedented progress in wireless implantable medical devices (IMDs) that can interface with the nervous system. To provide an even more stable, safe, and distributed interface, a new class of implantable devices is being developed; single-channel sub-mm scale wireless devices. In this research, we describe a new and simple technique for the fabrication and assembly of a sub-mm wirelessly powered stimulating implant. The fabricated implant is composed of an ASIC that measures 900 × 450 × 80 μm3, two PEDOT-coated microelectrodes, an SMD inductor, and a SU-8 coating. The electrodes and the SMD are directly mounted onto the ASIC. The ultra-small device is powered via electromagnetic (EM) in near-field using a 2-coil inductive link and shows a power transfer efficiency (PTE) of 0.17% in the air with coil separation of 0.5 cm.
AB - In the past three decades, we have witnessed unprecedented progress in wireless implantable medical devices (IMDs) that can interface with the nervous system. To provide an even more stable, safe, and distributed interface, a new class of implantable devices is being developed; single-channel sub-mm scale wireless devices. In this research, we describe a new and simple technique for the fabrication and assembly of a sub-mm wirelessly powered stimulating implant. The fabricated implant is composed of an ASIC that measures 900 × 450 × 80 μm3, two PEDOT-coated microelectrodes, an SMD inductor, and a SU-8 coating. The electrodes and the SMD are directly mounted onto the ASIC. The ultra-small device is powered via electromagnetic (EM) in near-field using a 2-coil inductive link and shows a power transfer efficiency (PTE) of 0.17% in the air with coil separation of 0.5 cm.
KW - distributed
KW - miniaturized
KW - neural stimulation
KW - wireless power transmission
UR - https://www.scopus.com/pages/publications/85167685984
U2 - 10.1109/ISCAS46773.2023.10181613
DO - 10.1109/ISCAS46773.2023.10181613
M3 - Conference contribution
AN - SCOPUS:85167685984
T3 - Proceedings - IEEE International Symposium on Circuits and Systems
BT - ISCAS 2023 - 56th IEEE International Symposium on Circuits and Systems, Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 56th IEEE International Symposium on Circuits and Systems, ISCAS 2023
Y2 - 21 May 2023 through 25 May 2023
ER -