@inproceedings{bdbec1fa5ba6466283e2e0dde26fd0e7,
title = "A CMOS 256-Pixel Self-Photovoltaics-Powered Subretinal Prosthetic Chip with Wide Image Dynamic Range and Shared Electrodes and Its in Vitro Experimental Results on Rd1 Mice",
abstract = "A self-photovoltaics-powered CMOS 256-pixel implantable chip with wide image dynamic range and shared electrodes is proposed and fabricated for subretinal prostheses. The infra-red (IR) light is incident only on photovoltaic cells of the chip whereas the visible light is mainly incident on pixels. The proposed adaptive background cancellation circuit (ABCC) is adopted to increase the image dynamic range so that the subretinal chip can adapt for different surrounding illuminances. Moreover, the bi-directional sharing electrodes (BDSEs) is used to increase electrode size under the same chip area and boost the stimulation charges to 11.4 nC. The functions of the chip have been successfully validated with both electrical measurement and in vitro patch clamp experiments with the retinas of Rd1 mice.",
keywords = "CMOS image sensor, implantable chip, subretinal prostheses",
author = "Chung-Yu Wu and Tzeng, {Chi Kuan} and Huang, {Shih Yun} and Chu, {Fang Liang} and Chiao, {Chuan Chin} and Tsai, {Yueh Chun} and Jun Ohta and Toshihiko Noda",
year = "2019",
month = aug,
doi = "10.1109/MWSCAS.2019.8885223",
language = "English",
series = "Midwest Symposium on Circuits and Systems",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "29--32",
booktitle = "2019 IEEE 62nd International Midwest Symposium on Circuits and Systems, MWSCAS 2019",
address = "United States",
note = "null ; Conference date: 04-08-2019 Through 07-08-2019",
}