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Controllable Patterning of an Al Surface by a PDMS Stamp  

Park, Gayun (Department of Chemical Engineering, Inha University)
Kim, Kyungmin (Department of Chemical Engineering, Inha University)
Lee, Hoyeon (Department of Chemical Engineering, Inha University)
Park, Changhyun (Department of Chemical Engineering, Inha University)
Kim, Youngmin (SAMYOUNG S&C CO.LTd)
Tak, Yongsug (Department of Chemical Engineering, Inha University)
Choi, Jinsub (Department of Chemical Engineering, Inha University)
Publication Information
Applied Chemistry for Engineering / v.23, no.5, 2012 , pp. 501-504 More about this Journal
Abstract
In this study, etched Al electrodes with ordered arrays of pits and high aspect ratios were successively obtained using a patterned protect layer on the Al surface prepared with soft lithography method. Various methods were applied to fabricate a well ordered protect layer on the Al surface and the difference of etched Al surfaces with and without a protect layer was investigated by using SEM. It was found that the etched Al surfaces were affected by using either a protect layer or a non protect layer. As a result, the Al surface with the well ordered pits could be achieved by protect layer. However, the etched Al with nonuniform pits can be obtained without any protect layers.
Keywords
electrochemical etching; Al surface; PDMS; soft lithography;
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