Title
Fabrication and functional demonstration of a smart electrode with a built-in CMOS microchip for neural stimulation of a retinal prosthesis
Abstract
In this study, we propose an advanced architecture of a smart electrode for neural stimulation of a retinal prosthesis. A feature of the proposed architecture is embedding CMOS microchips into the core of the stimulus electrodes. Microchip integration without dead space on the array is possible. Additionally, higher durability can be expected because the microchips are protected by the stimulus electrodes like a metal casing. Dedicated circular-shaped CMOS microchips were designed and fabricated. The microchip measured 400 µm in diameter. Stimulus electrodes that had a microcavity for embedding the microchip were also fabricated. In the assembly process, the CMOS microchip was mounted on a flexible substrate, and then the stimulus electrode was mounted to cover the microchip. The microchip was completely built into the inside of the electrode. By performing an ex-vivo experiment using the extracted eyeball of a pig, stimulus function of the electrode was demonstrated successfully.
Year
DOI
Venue
2015
10.1109/EMBC.2015.7319111
EMBC
Field
DocType
Volume
Biomedical engineering,Computer science,Visual prosthesis,CMOS,Electronic engineering,Retinal Prosthesis,Microelectrode,Electrode,Fabrication
Conference
2015
ISSN
Citations 
PageRank 
1557-170X
1
0.48
References 
Authors
0
8
Name
Order
Citations
PageRank
toshihiko198.62
Takumi Fujisawa210.48
Ryohei Kawasaki310.48
H Tashiro441.34
Hiroaki Takehara510.82
Kiyotaka Sasagawa63117.22
Takashi Tokuda71110.27
Jun Ohta83714.35