Dear All; Hello, I am looking for Silicon Wet Etching Simulator. I am now trying to make a very sharp tips with the help of Silicon isotropic wet etching. Before I begin to proceed real process, I want to see the expecting results and change the mask design if it is necessary. I have tried the ACES, but it can not provide the exact mask designing. If you have some good etching simulator, please tell me where I could get it. Thanks. Choe,S-H Esashi Laboratory, Tohoku University E-Mail: choe@mems.mech.tohoku.ac.jp