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Size-effect on stress behavior of the AlN/TiN film

✍ Scribed by D. Chen; Y.M. Wang; X.L. Ma

Publisher
Elsevier Science
Year
2009
Tongue
English
Weight
562 KB
Volume
57
Category
Article
ISSN
1359-6454

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✦ Synopsis

The stress behavior of AlN/TiN superlattice film has been studied by means of a crystal-chemical atomic dynamics simulation based on first-principles calculations. The size-effects on stress behavior are demonstrated and discussed in detail. Stress behavior depends not only on AlN thickness but also on structural relaxation and strain distribution in the film. When the AlN thickness exceeds a critical one, the superlattice film is metastable. Stress behavior can be traced to the AlN/TiN interface structure and its variation with strain relaxation, which may reflect the main strain characteristics caused by AlN structural transformation in this film.

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