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Well-Shaped Microelectrode Array Structure for High-Density CMOS Amperometric Electrochemical Sensor Array
Kiichi NIITSU Tsuyoshi KUNO Masayuki TAKIHI Kazuo NAKAZATO
IEICE TRANSACTIONS on Electronics
Publication Date: 2016/06/01
Online ISSN: 1745-1353
Type of Manuscript: BRIEF PAPER
MEA, CMOS, analog circuit, amperometry, electrochemical sensor, 3D structure,
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In this study, a well-shaped microelectrode array (MEA) for fabricating a high-density complementary metal-oxide semiconductor amperometric electrochemical sensor array was designed and verified. By integrating an auxiliary electrode with the well-shaped structure of the MEA, the footprint was reduced and high density and high resolution were also achieved. The results of three-dimensional electrochemical simulations confirmed the effectiveness of the proposed MEA structure and possibility of increasing the density to four times than that achieved by the conventional two-dimensional structure.