Hello, I am a research assistant at the University of Hawaii. For a project we need to etch 1 micron through holes on a thin glass membrane. I came to know that this could be done by electrochemical etching. Could anyone tell me how exactly the electrochemical etch can be done? If you know any alternative method please let me know. Also let me know if you or someone else could do the 1 micron through hole etching in a glass membrane. Thank you very much, Regards, Ananth.