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A Comparative Study of Stress Determination Techniques in Polycrystalline Thin Films

Published online by Cambridge University Press:  06 March 2019

L. C. Noyan  and
C. C. Goldsmith
L. C. Noyan
Affiliation:
Thomas J. Watson Research Center IBM Research Division Yorktown Heights, NY
C. C. Goldsmith
Affiliation:
IBM General Technology Division Hopewell Junction, NY
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Abstract

A review of the literature has shown that two major techniques are used to determine stress/strain in thin film structures: curvature measurement technique and internal stress measurement by the traditional sin2ψ technique. However, to date, there is no published comparison of the results from both techniques when they are applied to a given specimen.

In this paper we compare both methods theoretically and experimentally. We show that, while in some cases similar information is obtained from both techniques, there are cases where the two measurements give different results. We will show that, in such cases, the two methods can be complementary. Thus, they can be used to yield a more complete description of the total stress/strain tensor in the material.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 33: Thirty-Eighth Annual Conference on Applications of X-ray Analysis, July 31 - August 4, 1989 , 1989 , pp. 137 - 144
Copyright
Copyright © International Centre for Diffraction Data 1989

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