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Journal of Micro/Nanolithography, MEMS, and MOEMS

Modeling of electrochemical micromachining: comparison to experiments
Author(s): Deepak Marla; Suhas S. Joshi; Sushanta K. Mitra
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Paper Abstract

A detailed theoretical modeling of the electrochemical micromachining (EMM) process has been conducted here. The model takes into account a very small interelectrode gap thickness (order of a few micrometers) under which the electric field between the electrodes becomes a predominant factor in governing the machining process. The effect of electric double layer (EDL) also becomes significant under such conditions. The governing equations of the material removal rate are derived by considering a one-dimensional electric field, which is perpendicular to the cross section of the electrode. The model also incorporates the applied pulsed voltage used in EMM. A comparison between the theoretical and the experimental results indicate that, under high voltage and small interelectrode gap, the electric field and the formation of EDL have a significant effect on the material removal rate.

Paper Details

Date Published: 1 July 2008
PDF: 7 pages
J. Micro/Nanolith. 7(3) 033015 doi: 10.1117/1.2964215
Published in: Journal of Micro/Nanolithography, MEMS, and MOEMS Volume 7, Issue 3
Show Author Affiliations
Deepak Marla, Indian Institute of Technology Bombay (India)
Suhas S. Joshi, Indian Institute of Technology Bombay (India)
Sushanta K. Mitra, Indian Institute of Technology Bombay (India)


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