If I am right Barium Titanate dissolves at appreciable rate in acidic solutions. Can you please let me know how the film was deposited and whether or not it dissolves in HF? Thank you, Dev _________________________________________________________________ Cheer a special someone with a fun Halloween eCard from American Greetings! Go to http://www.msn.americangreetings.com/index_msn.pd?source=msne134