Hi, friends, Is there anybody who has experinece on making anodic aluminum oxide(AAO)? I want to transfer the pattern of the AAO to silicon dioxide using dry etching, so i need to remove the barrier layer at the bottom. I tried several methods such as 30degreeC H3PO4 20min. But it didn't work. Another question is how to clean the film after strip off from the film. I use HgCl2 to strip the AAO film from the film, but it is dirt. It is difficult to clean up. is there anybody has any experience? Thank you. Have a good day. University of California,Irvine B.Frank benfrankm@gmail.com 2006-07-18