ultra sonic drilling can be use to drill 1mm hole on wafers On Sun, Dec 5, 2010 at 12:39 PM, Petru Lunca Popawrote: > Hi, > > I have just an ordinary Si/SiO2 commercial wafer and I want to to > put a hole in it . The shape is not so important. Area should be around one > mm squared or less. > > Any ideea how to do this without breaking the wafer? > Mechanical or chemical methods? > > Thank you > Petru -- Lin, Xiaohui Ph.D. Program in Electrical and Computer Engineering Nanophotonics and Optical Interconnects Group Microelectronics Research Center The University of Texas at Austin E-mail: xiaohui.lin@mail.utexas.edu Office: (512) 471-4349