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Electrical Contact Resistance of Coated Spherical Contacts

  • Wanbin Ren
  • , Yu Chen
  • , Zhaobin Wang
  • , Shengjun Xue
  • , Xu Zhang

Research output: Contribution to journalArticlepeer-review

Abstract

The electrical contact resistance of two spherical contacts with coating is studied by using analytical method and finite-element method simulation software. The effects of contact radius, coating thickness, and the ratio of substrate to coating in electrical resistivity are evaluated over a large range of aspect ratios. The total electrical contact resistance could comprise three components of resistance, that is, the spreading resistance, the transition resistance, and the bulk resistance. Subsequently, the correlations of normalized spreading resistance, total contact resistance, and normalized contact radius are calculated and compared with the classical Holm theory.

Original languageEnglish
Article number7587378
Pages (from-to)4373-4379
Number of pages7
JournalIEEE Transactions on Electron Devices
Volume63
Issue number11
DOIs
StatePublished - Nov 2016
Externally publishedYes

Keywords

  • Coating
  • contact radius
  • contact resistance
  • electrical contact
  • spreading resistance

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