What's the oxide thickness? Or is it just the black tarnish which is usually sulfides? Shay -----Original Message----- From: mems-talk-bounces+shay=mizur.com@memsnet.org [mailto:mems-talk-bounces+shay=mizur.com@memsnet.org] On Behalf Of Abdul Qader Ahsan Qureshi Sent: Wednesday, July 20, 2011 6:32 PM To: mems-talk@memsnet.org Subject: [mems-talk] Removing oxide from Silver Die Dear All, Does anyone know an etching recipe for removing the oxide layer from the surface of the Silver electroplated die. The thickness of the silver is 200 microns. Regards Abdul Qader Ahsan