Hi Amanpreet, This should be a good reference and an appropritate starting point Williams, K.R.; Muller, R.S. Etch rates for micromachining processing. Journal of Microelectromechanical Systems, vol.5, (no.4), IEEE, Dec. 1996. p.256-69. hope that helps, Abhinav --- Amanpreetwrote: > Hello > > I am looking for the etch rates for all the > processes and all the etchants > particularly with the anisotropic etchants and deep > reactive ion etching. If > any one can give me information about this it will > be of great help. thanks > for reading and your help > > Amanpreet Singh Yahoo! Greetings - Send FREE e-cards for every occasion! http://greetings.yahoo.com