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Application of Electron Backscatter Diffraction for Crystallographic Characterization of Tin Whiskers

Published online by Cambridge University Press:  26 July 2012

Joseph R. Michael ,
Bonnie B. McKenzie  and
Donald F. Susan
Joseph R. Michael*
Affiliation:
Sandia National Laboratories, Materials Characterization Department, P.O. Box 5800, MS 0886, Albuquerque, NM 87185-0886, USA
Bonnie B. McKenzie
Affiliation:
Sandia National Laboratories, Materials Characterization Department, P.O. Box 5800, MS 0886, Albuquerque, NM 87185-0886, USA
Donald F. Susan
Affiliation:
Sandia National Laboratories, Materials Characterization Department, P.O. Box 5800, MS 0886, Albuquerque, NM 87185-0886, USA
*
Corresponding author. E-mail: [email protected]
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Abstract

Understanding the growth of whiskers or high aspect ratio features on substrates can be aided when the crystallography of the feature is known. This study has evaluated three methods that utilize electron backscatter diffraction (EBSD) for the determination of the crystallographic growth direction of an individual whisker. EBSD has traditionally been a technique applied to planar, polished samples, and thus the use of EBSD for out-of-surface features is somewhat more difficult and requires additional steps. One of the methods requires the whiskers to be removed from the substrate resulting in the loss of valuable physical growth relationships between the whisker and the substrate. The other two techniques do not suffer this disadvantage and provide the physical growth information as well as the crystallographic growth directions. The final choice of method depends on the information required. The accuracy and the advantages and disadvantages of each method are discussed.

Keywords

EBSDtinwhiskerscrystallography
Type
Research Article
Information
Microscopy and Microanalysis , Volume 18 , Issue 4 , August 2012 , pp. 876 - 884
Copyright
Copyright © Microscopy Society of America 2012

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