Hi Will, XeF2 won't etch electroplated copper if your system is free of any kind of leakage problem and your wafer is totally dry. Fei 2010/1/25, Will Yu: > Hello all, > > I would like to etch Si with XeF2 gas. But my sample contains > electroplated copper. > > Does anyone know if XeF2 will etch copper or not? > > Thanks, > Will -- Best regards, Yours sincerely Fei Wang ______________ Postdoctoral researcher, Dr MIC - Department of Micro and Nanotechnology Technical University of Denmark (DTU) Building 344, 1st floor, Room no. 130 DK-2800, Kgs. Lyngby Denmark Tel: +45 4525 6311 Fax: +45 4588 7762 Email: fei.wang@nanotech.dtu.dk http://www.nanotech.dtu.dk