Hi to All , This is a friendly reminder... NO KAPTON TAPE ,GALLIUM ,OR INDIUM ALLOWED IN THE EVAPORATORS. We just cleaned the chamber of the CHA and found residues of both Kapton tape and Indium in the chamber of the CHA. The Indium contaminated the other source materials and had they to be replaced . Please use pmma or photo resist to adhere your sample to slides, We will UPON REQUEST ( contact Dave Lubelski, Kenny Schwartz, Ron Reger ,or Steve Jurss )allow small amounts of Kapton tape in the AIRCO ONLY . Please consider that this type of misuse will not only have an adverse effect on your film quality and research in addition to the other 300 plus users that also depend on everyone following procedures. Thank you all for your continued efforts to move BNC forward ! Kenny Kenny Schwartz Birck Nanotechnology Center Purdue University PH 765-496-1174 kfschwar@purdue.edu