Hello Abdul, we have an older, simple type of the AMMT-Device for the electrochemical etch stop process. I saw on AMMT's website that the menu is quite different today. In principle, you have to contact your substrate as anode and the counter electrode as cathode and then start the process. The end of the etching is indicated by a sudden change of the current. Regards André -----Ursprüngliche Nachricht----- Von: mems-talk-bounces+aboedecker=imsas.uni-bremen.de@memsnet.org [mailto:mems-talk-bounces+aboedecker=imsas.uni-bremen.de@memsnet.org] Im Auftrag von Abdul Qader Ahsan Qureshi Gesendet: Mittwoch, 12. November 2014 02:29 An: mems-talk@memsnet.org Betreff: [mems-talk] Information on Electrochemical Etch Stop Process Hello I want to develop Electrochemical Etch Stop process. For this purpose I'll use Epi wafer (Substrate = P-type Si, [100], 500um thick, and Epi-layer = N-type, 10um thick). I have also MEMS Potentiostat from "AMMT". I'll be thankful if someone can provide information on it. Thanks -- Abdul Qader Ahsan _______________________________________________ Hosted by the MEMS and Nanotechnology Exchange, the country's leading provider of MEMS and Nanotechnology design and fabrication services. Visit us at http://www.mems-exchange.org Want to advertise to this community? See http://www.memsnet.org To unsubscribe: http://mail.mems-exchange.org/mailman/listinfo/mems-talk _______________________________________________ Hosted by the MEMS and Nanotechnology Exchange, the country's leading provider of MEMS and Nanotechnology design and fabrication services. Visit us at http://www.mems-exchange.org Want to advertise to this community? See http://www.memsnet.org To unsubscribe: http://mail.mems-exchange.org/mailman/listinfo/mems-talk