Hi, Gong, I think lift off would be the easiest way to make array with holes in metal. If you want much thicker metal layer, you can also try electroplating. Best regards, Fei 2009/5/3, Jackgong Hotmail: > Hi, Henri > > Thanks for your point! Would you provide more details about how to make > array with holes in metal based on your experiences? Just do lithography and > wet etch or any tricks? Appreciate! > > Gong > 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