Abstract
The misfit stress between an epilayer and its substrate can be determined, via the Stoney formula, from the sample curvature generated by the relaxation of this stress. This curvature method has been transposed to transmission electron microscopy. The Stoney model assumes the observed zones present particular dimensions and geometry. Finite element calculations have shown that narrow rectangular lamellae cut by focused ion beam comply well with the criteria of the model. This technique has been applied to analyse a Si/SiGe(001) structure.
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References
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© 2005 Springer-Verlag Berlin Heidelberg
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Cabié, M., Benassayag, G., Rocher, A., Ponchet, A., Hartmann, J.M., Fournel, F. (2005). TEM measurement of the epitaxial stress of Si/SiGe lamellae prepared by FIB. In: Cullis, A.G., Hutchison, J.L. (eds) Microscopy of Semiconducting Materials. Springer Proceedings in Physics, vol 107. Springer, Berlin, Heidelberg . https://doi.org/10.1007/3-540-31915-8_19
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DOI: https://doi.org/10.1007/3-540-31915-8_19
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-31914-6
Online ISBN: 978-3-540-31915-3
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