Hello everyone, I am going to RF Sputter lead-zirconate-titanate (PZT) onto platinized Si substrates. The problem I am having is of Pb contamination, and so the cleanroom staff here is very reluctant to allow any Pb inside. They are afraid that Pb will be poisonous to users in the clean room. Has anyone faced a similar problem before? If so, please help me out here. Thanks. Abhishek Sivapurapu, 791 Atlantic Drive, MiRC, Georgia Tech, Atlanta, GA 30332 ________________________________________________________________________ Yahoo! India Insurance Special: Be informed on the best policies, services, tools and more. Go to: http://in.insurance.yahoo.com/licspecial/index.html