Surface morphological evolutions on single crystal films by strong anisotropic drift-diffusion under the capillary and electromigration forces

Details Surface morphological evolutions on single crystal films by strong anisotropic drift-diffusion under the capillary and electromigration forces Surface morphological evolutions on single crystal films by strong anisotropic drift-diffusion under the capillary and electromigration forces

2009-10-23

arxiv.org/abs/0910.4592v1

Journal of Applied Physics, Volume 100, 043504 Aug 17, 2006

Physics

Condensed Matter

Materials Science

41 pages, 18 figures. related simulation movies utilizing numerous combination of the surface texture, see http://www.csl.me

Scientific paper

10.1063/1.2234800

The morphological evolution of voids at the unpassivated surfaces and the sidewalls of the single crystal metallic films are investigated via computer simulations by using the novel mathematical model developed by Ogurtani relying on the fundamental postulates of irreversible thermodynamics. The effects of the drift-diffusion anisotropy on the development of the surface morphological scenarios are fully explored under the action of the electromigration (EM) and capillary forces (CF), utilizing numerous combination of the surface textures and the directions of the applied electric field. The interconnect failure time due to the EM induced wedge shape internal voids and the incubation time of the oscillatory surface waves, under the severe instability regimes, are deduced by the novel renormalization procedures applied on the outputs of the computer simulation experiments.

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