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|Author(s):||Daniel Josell; Daniel Wheeler; W H. Huber; Thomas P. Moffat;|
|Title:||Superconformal Electrodeposition in Submicron Features|
|Published:||July 01, 2001|
|Abstract:||Superconformal electrodeposition is explained based on a local growth velocity that increases with coverage of a catalytic species adsorbed on the copper-electrolyte interface. For dilute concentration of the catalyst precursor in the electrolyte, local coverage in fine features changes more due to interfacearea change than by accumulation from the electrolyte, yielding superconformal growth. The model is supported by experiments and simulations of copper deposition in 350-100 nm wide features, helping to explain the influence of adsorbates on roughness evolution.|
|Citation:||Physical Review Letters|
|PDF version:||Click here to retrieve PDF version of paper (162KB)|