electromigration

Computing Dictionary

electromigration definition

electronics
Mass transport due to momentum exchange between conducting electrons and diffusing metal atoms. Electromigration causes progressive damage to the metal conductors in an integrated circuit. It is characteristic of metals at very high current density and temperatures of 100C or more.
The term was coined by Professor Hilbert Huntington in the late 1950s because he didn't like the German use of the word "electrotransport".
Mass transoport occurs via the Einstein relation J=DFC/kT where F is the driving force for the transoport. For electromigraiton F is z*epj and z* is an electromigration parameter relating the momentum exchange and z is the charge of the "diffusing" species.
(1999-02-25)

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
Cite This Source
Explore Dictionary.com
Previous Definition: electrometry
Next Definition: electromotive
Words Near: electromigration
More from Thesaurus.com
Synonyms and Antonyms for electromigration
More from Reference.com
Search for articles containing electromigration
Dictionary.com Word FAQs

Dictionary.com presents 366 FAQs, incorporating some of the frequently asked questions from the past with newer queries.

Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature