Hi, We are looking at buying a sputtering machine, that can deposit both Tantalum Pentoxide, and Multilayer metals. We will probably buy one second-hand from one of the dealers, such as Bid-Service. I would like any suggestions as to brands to avoid / look out for, particularly in regard to availability of spare parts. I would also like to know how easy it is to get targets for these machines, particularly for slightly exotic materials ( like Ta2O5 ) If you know of any good practical references that I should read, please feel free to suggest these to me. Many thanks, --- Gary Turner Industrial Research Ltd, Work: +64-4-569-0444 x 4220 P.O.Box 31310, Fax: +64-4-569-0754 Lower Hutt, (NZST : +1200) Home: +64-4-475-8844 New Zealand. Internet: g.turner@irl.cri.nz