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Spreading resistance of a round ohmic contact

Authors
Journal
Solid-State Electronics
0038-1101
Publisher
Elsevier
Publication Date
Volume
36
Issue
2
Identifiers
DOI: 10.1016/0038-1101(93)90132-a
Disciplines
  • Mathematics

Abstract

Abstract We calculated the spreading resistance of ohmic contacts for two important geometries—an ohmic contact stripe and disk separated by a semiconductor from a parallel ground plane. The solutions of these problems also apply to the problem of the capacitances between metal contacts of the same geometry separated by a dielectric. In the case of a disk contact, our calculation corrects the classical theory developed by Brooks and Mattes.

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