Correlation between microstructure deflections and film/substrate curvature under generalized stress fields

Details Correlation between microstructure deflections and film/substrate curvature under generalized stress fields Correlation between microstructure deflections and film/substrate curvature under generalized stress fields

2011-10-21

arxiv.org/abs/1110.4727v1

Physics

Condensed Matter

Materials Science

Scientific paper

In this article we develop an analytical theory that correlates the macroscopic curvature of stressed film/substrate systems with the microscopic in-plane and out-of-plane deflections of planar rotators. Extending this stress-deflection relations in the case of nonlinear stress fields and validating the results with the aid of finite element simulations. We use this theory to study the heteroepitaxial growth of cubic silicon carbide on silicon (100) and discover that due, to defects generated on the silicon substrate during the carbonization process, wafer curvature techniques may not allow the determination of the stress field in the grown films either quantitatively or qualitatively.

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