Hi Bill, Can you please list some reference that are good. I am trying to come up with process to test my TaN film.I am using the Tantallum Nitride as a barrier against Copper. Thanks, Regards, Jitu Patel ________________________________ From: Bill Moffat Subject: RE: [mems-talk] Tantullum Nitride Diffusion Barrier Testing Jitu, What are you using the Tantallum Nitride as a barrier against. If copper there are lots of technical papers on the efficiency of these and other barrier layers. There are good papers on 200 Angstrom thick layers of Ta,TaN,Ti,etc. There are newer papers on silane as a barrier layer only 10 to 20 angstroms thick. Bill Moffat