Title :
Micro-machined, polyimide stimulating electrodes with electroplated iridium oxide
Author :
Weiland, James D. ; Cogan, Stuart ; Humayun, Mark S.
Author_Institution :
Johns Hopkins Univ., Baltimore, MD, USA
Abstract :
Iridium oxide neural stimulating electrodes were formed by electroplating iridium oxide onto thin-film gold electrodes on a polyimide substrate. 18 million current pulses were applied to 4 electrodes over 7 days. 1 electrode delaminated on day 1. The remaining three electrodes showed characteristics altered by current pulsing. However, the electrodes maintained the ability to deliver large amounts of charge
Keywords :
biomedical electrodes; electroplated coatings; iridium compounds; microelectrodes; micromachining; neuromuscular stimulation; polymers; IrO2; electroplated iridium oxide; gold thin film; micromachined electrode; neural stimulation; polyimide substrate; Electrodes; Gold; Impedance measurement; Micromachining; Platinum; Polyimides; Sputtering; Substrates; Testing; Transistors;
Conference_Titel :
[Engineering in Medicine and Biology, 1999. 21st Annual Conference and the 1999 Annual Fall Meetring of the Biomedical Engineering Society] BMES/EMBS Conference, 1999. Proceedings of the First Joint
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-5674-8
DOI :
10.1109/IEMBS.1999.802455
