Atmospheric corrosion resistance of electroplated Ni/Ni-P/Au electronic contacts

Vinod K. Murugan, Zhigang Jia, Govindo J. Syaranamual, Chee Lip Gan, Yizhong Huang, Zhong Chen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

Atmospheric corrosion has vast consequences on the reliability of electronic connectors. This study determined the corrosion resistance of Ni/Ni-P plating metallurgy as a function of plating current density and plating thickness. Discrepancy was observed in the neutral salt spray (NSS) and mixed flowing gas (MFG) tests. Thicker Ni-P deposits displayed superior corrosion resistance in MFG tests while thinner Ni-P deposits performed better in NSS tests. This disparity was attributed to the intrinsic corrosion susceptibility of Ni-P against chlorine or sulfur assisted corrosion. Corrosion products were analysed for better understanding of the corrosion mechanism. NSS test produced green corrosion residues consisting of CuCl (nantokite) and CuCl2(OH)3 (clinoatacamite) and brown residues consisting of Cu2O (cuprite). MFG test produced sulfides of copper (major) and nickel (minor).

Original languageEnglish
Pages (from-to)84-92
Number of pages9
JournalMicroelectronics Reliability
Volume60
DOIs
Publication statusPublished - May 1 2016
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2016 Elsevier Ltd.

ASJC Scopus Subject Areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Safety, Risk, Reliability and Quality
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering

Keywords

  • Atmospheric corrosion
  • Corrosion resistance
  • Electrodeposition
  • Nickel
  • Nickel-phosphorus
  • Pitting corrosion

Fingerprint

Dive into the research topics of 'Atmospheric corrosion resistance of electroplated Ni/Ni-P/Au electronic contacts'. Together they form a unique fingerprint.

Cite this