Production processes for a flexible retina implant (Eurosensors XVIII, Session C6.6)

In this paper, an overview on different approaches for visual prostheses is presented and the different strategies are compared. A flexible implant is discussed which was developed for electrical stimulation of the retina of people suffering from retinitis pigmentosa. Wafer-level production processe...

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Bibliographic Details
Published in:Sensors and actuators. A. Physical. 2005-09, Vol.123, p.172-178
Main Authors: Hungar, Kaspar, Görtz, Michael, Slavcheva, Evelina, Spanier, Gerd, Weidig, Christopher, Mokwa, Wilfried
Format: Article
Language:English
Subjects:
3D gold electrodes
Flexible ophthalmic implant
Iridium oxide electrode coating
Telemetric implant
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Summary:In this paper, an overview on different approaches for visual prostheses is presented and the different strategies are compared. A flexible implant is discussed which was developed for electrical stimulation of the retina of people suffering from retinitis pigmentosa. Wafer-level production processes and assembly and packaging of a second-generation prototype are discussed with an emphasis on the production of three-dimensional electrodes. Iridium oxide thin-film coating used as stimulation material for the electrodes is described. Finally, the in vitro performance of the implants is discussed.
ISSN:0924-4247
1873-3069
DOI:10.1016/j.sna.2005.03.061