Fabrication of implantable microelectrode arrays by laser cutting of silicone rubber and platinum foil.

Journal of neural engineering (2005-05-07)
M Schuettler, S Stiess, B V King, G J Suaning
RESUMO

A new method for fabrication of microelectrode arrays comprised of traditional implant materials is presented. The main construction principle is the use of spun-on medical grade silicone rubber as insulating substrate material and platinum foil as conductor (tracks, pads and electrodes). The silicone rubber and the platinum foil are patterned by laser cutting using an Nd:YAG laser and a microcontroller-driven, stepper-motor operated x-y table. The method does not require expensive clean room facilities and offers an extremely short design-to-prototype time of below 1 day. First prototypes demonstrate a minimal achievable feature size of about 30 microm.

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Sigma-Aldrich
Platinum, foil, thickness 0.025 mm, 99.9% trace metals basis
Platinum, foil, 8mm disks, thickness 0.125mm, as rolled, 99.95%
Platinum, foil, light tested, 50x50mm, thickness 0.05mm, as rolled, 99.95%
Platinum, foil, not light tested, 50x50mm, thickness 0.0025mm, as rolled, 99.95%
Platinum, foil, not light tested, 50x50mm, thickness 0.002mm, as rolled, 99.95%
Platinum, foil, not light tested, 50x50mm, thickness 0.003mm, as rolled, 99.95%
Platinum, foil, not light tested, 50x50mm, thickness 0.0075mm, as rolled, 99.95%
Platinum, foil, not light tested, 50x50mm, thickness 0.0125mm, as rolled, 99.95%
Platinum, foil, not light tested, 50x50mm, thickness 0.01mm, as rolled, 99.95%
Platinum, foil, not light tested, 50x50mm, thickness 0.025mm, as rolled, 99.95%
Platinum, foil, not light tested, 50x50mm, thickness 0.025mm, as rolled, 99.99+%
Platinum, foil, 15x15mm, thickness 0.2mm, as rolled, 99.95%
Platinum, foil, 25x25mm, thickness 0.125mm, as rolled, 99.95%
Platinum, foil, 25x25mm, thickness 0.125mm, as rolled, 99.99+%
Platinum, foil, 25x25mm, thickness 0.1mm, as rolled, 99.95%
Platinum, foil, 25x25mm, thickness 0.1mm, as rolled, 99.99+%
Platinum, foil, 25x25mm, thickness 0.25mm, as rolled, 99.95%
Platinum, foil, 25x25mm, thickness 0.25mm, as rolled, 99.99+%
Platinum, foil, 25x25mm, thickness 0.25mm, as rolled, 99.999%
Platinum, foil, 30x30mm, thickness 0.2mm, as rolled, 99.95%
Platinum, foil, 50x50mm, thickness 0.125mm, as rolled, 99.95%
Platinum, foil, 50x50mm, thickness 0.125mm, as rolled, 99.99+%
Platinum, foil, 50x50mm, thickness 0.1mm, as rolled, 99.95%
Platinum, foil, 50x50mm, thickness 0.1mm, as rolled, 99.99+%
Platinum, foil, 0.05m coil, thickness 0.025mm, coil width .4mm, as rolled, 99.95%
Platinum, foil, 0.05m coil, thickness 0.025mm, coil width .85mm, as rolled, 99.95%
Platinum, foil, 0.05m coil, thickness 0.025mm, coil width 1.2mm, as rolled, 99.95%
Platinum, foil, 0.05m coil, thickness 0.025mm, coil width 1.6mm, as rolled, 99.95%
Platinum, foil, 0.05m coil, thickness 0.025mm, coil width 2mm, as rolled, 99.95%
Platinum, foil, 0.05m coil, thickness 0.025mm, coil width 5mm, as rolled, 99.95%

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