We would appreciate the opportunity to talk with those on the mailing list having experience with working with ultra-thin (~10 microns thick) double-side polished Si wafers. We are thinking of etching a fairly simple pattern directly through the wafer. We have used, on thicker wafers (~70 microns thick) the Bosch deep etch. The purpose of this message is simply to make contact with those MEMS workers who have worked with processing wafers in the 10 micron thickness range. -------------------------------------------------- Dr. Kevin Ausman Laboratory for the Study of Novel Carbon Materials Department of Physics Washington University CB 1105, One Brookings Drive St. Louis, MO 63130-4899 Lab: 314-935-7507 (Messages can be unreliable) VoiceMail: 314-370-4917 Fax: 314-935-5258 E-Mail: ausman@hbar.wustl.edu Web: http://bucky8.wustl.edu --------------------------------------------------