Journal
JOURNAL OF MICROMECHANICS AND MICROENGINEERING
Volume 17, Issue 12, Pages 2393-2397Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0960-1317/17/12/001
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Based on the law that the oxidation rate of Si decreases with the oxidation time, a method to fabricate a nanochannel is presented. In this method, the depth of the channel is precisely controlled by the oxidation time. Nanochannels are fabricated with depths of several tens of nanometers, width of 20 mu m and lengths of several millimeters. SEM images show that the channel is fabricated well. It is shown that the flow rate increases linearly with the inlet pressure for water, NaCl solution and oil. Besides, the flow rate increases with the temperature. The capillary phenomenon is also observed in the nanochannel.
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