Technical Articles From Hong Kong University of Science
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1 technical article added by Hong Kong University of Science
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A Novel Method for the Fabrication of a High-Density Carbon Nanotube Microelectrode Array
Nov 03, 2016 | Adam Khalifa, Zhaoli Gao, Amine Bermak, Yi Wang, Leanne Lai Hang Chan
We present a novel method for fabricating a high-density carbon nanotube microelectrode array (MEA) chip. Vertically aligned carbon nanotubes (VACNTs) were synthesized by microwave plasma-enhanced chemical vapor deposition and thermal chemical vapor deposition. The device was characterized using electrochemical experiments such as cyclic voltammetry, impedance spectroscopy and potential transient measurements. Through-silicon vias (TSVs) were fabricated and partially filled with polycrystalline silicon to allow electrical connection from the high-density electrodes to a stimulator microchip.
In response to the demand for higher resolution implants, we have developed a unique process to obtain a high-density electrode array by making the microelectrodes smaller in size and designing new ways of routing the electrodes to current sources....
