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A micro-sized photo detectable stimulator array for retinal prosthesis by distributed sensor network approach

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6 Author(s)
A. Uehara ; Graduate Sch. of Mater. Sci., Nara Inst. of Sci. & Technol., Japan ; Yi-Li Pan ; K. Kagawa ; T. Tokuda
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In this paper, we propose a flexible retinal prosthesis device by a distributed sensor network approach. The novel point of the proposed device is that the flexible stimulator consists of micro-sized CMOS devices linked in network. The micro-sized CMOS device consists of single-wire serial interface, a photo detector with pixel-level ADC, an image processing circuit, a current DAC and a current stimulator. The device is fabricated in a 0.6 μm CMOS technology and the device size is 500 μm × 500 μm. The function of the prototype device is tested successfully.

Published in:

VLSI Circuits, 2004. Digest of Technical Papers. 2004 Symposium on

Date of Conference:

17-19 June 2004