Electromigration
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)
Read Also:
- Electromotive
[ih-lek-truh-moh-tiv] /ɪˌlɛk trəˈmoʊ tɪv/ adjective 1. pertaining to, producing, or tending to produce a flow of electricity. /ɪˌlɛktrəʊˈməʊtɪv/ adjective 1. of, concerned with, producing, or tending to produce an electric current electromotive (ĭ-lěk’trō-mō’tĭv) Capable of accelerating electric charges and creating electric current; having electric potential.
- Electromotive-force
noun, Electricity. 1. the energy available for conversion from nonelectric to electric form, or vice versa, per unit of charge passing through the source of the energy; the potential difference between the terminals of a source of electrical energy: expressed in volts. Abbreviation: emf. noun 1. (physics) electromotive force e·lec·tro·mo·tive force (ĭ-lěk’trō-mō’tĭv) n. Abbr. EMF […]
- Electromotive-series
noun, Chemistry. 1. the classification of metals in the order of their electrode potentials. noun 1. (chem) a series of the metals, together with hydrogen, ranged in the order of their electrode potentials
- Electromyogram
[ih-lek-truh-mahy-uh-gram] /ɪˌlɛk trəˈmaɪ əˌgræm/ noun, Medicine/Medical. 1. a graphic record of the electric currents associated with muscular action. Abbreviation: EMG. electromyogram e·lec·tro·my·o·gram (ĭ-lěk’trō-mī’ə-grām’) n. Abbr. EMG A graphic record of the electrical activity of a muscle as recorded by an electromyograph.
- Electromyograph
[ih-lek-troh-mahy-uh-graf, -grahf] /ɪˌlɛk troʊˈmaɪ əˌgræf, -ˌgrɑf/ noun 1. a device for recording electric currents from an active muscle to produce an electromyogram. Abbreviation: EMG. electromyograph e·lec·tro·my·o·graph (ĭ-lěk’trō-mī’ə-graf’) n. An instrument used in diagnosing neuromuscular disorders that produces an audio or visual record of the electrical activity of a skeletal muscle by means of an electrode […]