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26 April 2024
 
  » pubmed » pmid11461571

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Alloying effects on electromigration mass transport
J P Dekker ; C A Volkert ; E Arzt ; P Gumbsch ;
Date 16 Jul 2001
Journal Phys Rev Lett, 87 (3), 035901
AbstractSmall amounts of alloying elements can significantly retard electromigration in conductor lines. This phenomenon is experimentally well established but is still lacking a fundamental explanation. An atomic-level mechanism for this behavior is proposed here which is based on a kinetic analysis of diffusion in crystalline interfaces. It predicts a reduction or reversal of the flux of host atoms for physically reasonable parameters and can account for the observed effect of copper on electromigration in aluminum conductor lines.
Source PubMed, pmid11461571
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