Hi, I'm just wondering if anybody has observed pin holes in thermally or e-beam evaporated Chromium, Titanium and Gold. If so, how thick do I have to evaporate these metal films for the pin holes to disappear? Mr. Jeffrey Mun Pun YUE 余文彬 Division of Bioengineering E3A-07-02, Nanobioanalytics Lab 7 Engineering Drive 1 National University of Singapore Singapore 117574 Tel: (65) 65166482, Fax: (65) 68723069 E-mail: g0500396@nus.edu.sg