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Scaling laws for electrical contact resistance with dissimilar materials
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10.1063/1.3457899
/content/aip/journal/jap/108/4/10.1063/1.3457899
http://aip.metastore.ingenta.com/content/aip/journal/jap/108/4/10.1063/1.3457899
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Two current channels, II and III, are made in contact through the bridge region, I, in either Cartesian or cylindrical geometries. Holm’s -spot corresponds to the cylindrical geometry with , , . Current flows from left to right.

Image of FIG. 2.
FIG. 2.

Semi-infinite current channel with dissimilar materials, regions I and II, in either Cartesian or cylindrical geometries. Current flows from left to right.

Image of FIG. 3.
FIG. 3.

Comparison of according to the exact theory (symbols) and to the simple scaling law [Eq. (2), solid lines] for semi-infinite cylindrical current channels, I and II. (a) as a function of aspect ratio . (b) as a function of resistivity ratio . The dashed lines in (b) respresent the cylindrical -spot theory of Timsit [, Eq. (3)].

Image of FIG. 4.
FIG. 4.

Comparison of according to the exact theory (symbols) and to the simple scaling law (Eq. (5), solid lines) for semi-infinite Cartesian current channels, I and II. (a) as a function of aspect ratio . (b) as a function of resistivity ratio . The dashed lines in (b) respresent the Cartesian -spot theory [, Eq. (6)].

Image of FIG. 5.
FIG. 5.

Sample calculations of the total resistance of a cylindrical channel according to MAXWELL 3D simulation (symbols) and the scaling law, Eq. (7), (solid lines).

Image of FIG. 6.
FIG. 6.

Comparison of the exact theory [Fig. 7 of Ref. 4] and the analytical formula, as given by Eq. (6) of the main text, for the normalized contact resistance of the Cartesian a-spot .

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/content/aip/journal/jap/108/4/10.1063/1.3457899
2010-08-26
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Scaling laws for electrical contact resistance with dissimilar materials
http://aip.metastore.ingenta.com/content/aip/journal/jap/108/4/10.1063/1.3457899
10.1063/1.3457899
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