Charge-injection waveforms for iridium oxide (AIROF) microelectrodes

被引：8

作者：

Cogan, SF ^{[1
]}

Troyk, PR ^{[1
]}

Ehrlich, J ^{[1
]}

Plante, TD ^{[1
]}

McCreery, DB ^{[1
]}

Bullara, L ^{[1
]}

机构：

[1] EIC Labs, Norwood, MA 02062 USA

来源：

PROCEEDINGS OF THE 25TH ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY, VOLS 1-4: A NEW BEGINNING FOR HUMAN HEALTH | 2003年 / 25卷

关键词：

microelectrodes; AIROF; iridium; charge-injection; waveforms; neural stimulation; anodic bias;

D O I：

10.1109/IEMBS.2003.1279829

中图分类号：

R5 [内科学];

学科分类号：

1002 ; 100201 ;

摘要：

The charge-injection limits of activated iridium oxide (AIROF) microelectrodes subjected to charge-balanced biphasic current pulsing are investigated as a function of anodic bias and asymmetry in the cathodic and anodic pulse widths. The use of asymmetric waveforms, in which the charge balancing anodic phase is delivered at a lower current density and longer pulse width, permits the use of anodic biasing to maximize charge-injection capacity. The need for more sophisticated driving waveforms and how these could be implemented in modern ASIC design to achieve optimal charge-injection is discussed.

引用

页码：1960 / 1963

页数：4

共 9 条

[1] BATCH-FABRICATED THIN-FILM ELECTRODES FOR STIMULATION OF THE CENTRAL AUDITORY-SYSTEM [J].