Fabrication and Validation of Multichip Neural Stimulator for In vivo Experiments toward Retinal Prosthesis
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概要
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A complementary metal oxide semiconductor (CMOS) multichip neural stimulator was fabricated and characterized. The device was designed specifically for retinal prosthesis. In this work, to achieve required performances for in vivo experiments, a new CMOS unit chip was designed with a power-on-reset mechanism and a low series resistance. We have developed a fabrication process for the proposed device focusing on the tight-seal performance of the device against saline solution to achieve a reliable long term operation. The proposed packaging technology is based on a flip-chip technique and has a feature of embedded Pt bulk electrodes. The basic functionality of the fabricated CMOS chip and packaged stimulator was confirmed. The device passed a 10-day endurance test in saline solution.
- 2007-04-30
著者
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Nunoshita Masahiro
Graduate School Of Materials Science Nara Institute Of Science And Technology
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Tano Yasuo
Department Of Ophthalmology Osaka University Graduate School Of Medicine
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Ohta Jun
Graduate School Of Materials Science Nara Institute Of Science And Technology
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Kagawa Keiichiro
Graduate School Of Information Science And Technology Osaka University
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Uehara Akihiro
Vision Institute Nidek Co Ltd
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Tokuda Takashi
Graduate School Of Materials Science Nara Institute Of Science And Technology
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Taniyama Mari
Graduate School Of Materials Science Nara Institute Of Science And Technology
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Sugitani Sachie
Graduate School Of Materials Science Nara Institute Of Science And Technology
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Terasawa Yasuo
Vision Institute Nidek Co Ltd
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Uehara Akihiro
Vision Institute, NIDEK Co., Ltd., 73-1 Hama, Gamagori, Aichi 443-0036, Japan
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Nunoshita Masahiro
Graduate School of Material Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0101, Japan
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Ohta Jun
Graduate School of Material Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0101, Japan
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