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Laminar flow used as "liquid etch mask" in wet chemical etching to generate glass microstructures with an improved aspect ratio
Journal article   Peer reviewed

Laminar flow used as "liquid etch mask" in wet chemical etching to generate glass microstructures with an improved aspect ratio

Xuan Mu, Qionglin Liang, Ping Hu, Kangning Ren, Yiming Wang and Guoan Luo
Lab on a chip, Vol.9(14), pp.1994-1996
01/01/2009
DOI: 10.1039/b904769g
PMID: 19568665

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Abstract

A new method of anisotropic etching an amorphous bulk material is proposed in this paper. Laminar flow is employed in this method to mask the flow of an etchant and is termed as "liquid etch mask". Since this mask has the physical properties of a liquid, it brings several advantages that could not be achieved by any kind of other etch mask in the solid phase. As a consequence, the aspect ratio of the glass channel could be improved to similar to 1 while in an inexpensive and convenient manner.
Biochemical Research Methods Biochemistry & Molecular Biology Chemistry Chemistry, Analytical Chemistry, Multidisciplinary Instruments & Instrumentation Life Sciences & Biomedicine Nanoscience & Nanotechnology Physical Sciences Science & Technology Science & Technology - Other Topics Technology

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