Title :
A self-curling monolithically-backed active high-density cochlear electrode array
Author :
Johnson, Angelique C. ; Wise, Kensall D.
Author_Institution :
Center for Wireless Integrated Microsyst., Univ. of Michigan, Ann Arbor, MI, USA
fDate :
Jan. 29 2012-Feb. 2 2012
Abstract :
This paper reports a fully batch-fabricated cochlear array with a current-driving ASIC. The array includes a stiffness-controlling ringed-channel for stylet wire placement and a self-curling parylene substrate capable of precurving the array to a 0.5 mm radius of curvature. A 32-site array with IrO sites on 250 μm centers is realized along with a four-channel stimulation ASIC capable of driving multipolar site configurations with biphasic pulses of up to 500 μA/channel.
Keywords :
application specific integrated circuits; biomedical electrodes; cochlear implants; biphasic pulse; current-driving ASIC; four-channel stimulation ASIC; multipolar site configuration; self-curling monolithically-backed active high-density cochlear electrode array; self-curling parylene substrate; stiffness-controlling ringed-channel; stylet wire placement; Application specific integrated circuits; Arrays; Electrodes; Robustness; Stress; Substrates; Wires;
Conference_Titel :
Micro Electro Mechanical Systems (MEMS), 2012 IEEE 25th International Conference on
Conference_Location :
Paris
Print_ISBN :
978-1-4673-0324-8
DOI :
10.1109/MEMSYS.2012.6170334
