The Effects of One Sided Gold Finish on the Reliability of Electrical Contacts under Fretting Conditions

Abstract:

The electric contact is one of the most primary elements to affect the reliability of the electric systems. Gold finish can maintain high contact reliability but increase the manufacture cost. In this paper, the effects of one sided gold plated contacts with various thickness of gold finish on the contact reliability were investigated. The failure mechanism of the one sided gold plated contacts under fretting conditions was analyzed. The contact life and the optimum thickness of the one sided gold finish under fretting conditions was achieved and compared. The effect of the curvature of the probes on the contact life was also discussed.

• Periodical: Advanced Materials Research (Volumes 118-120)
• Pages: 468-473
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.118-120.468
• Online since: June 2010
• Authors: Yang Lv, Yi Lin Zhou, Wei Kong
• Keywords: Electrical Contact, Fretting, One Sided Gold Finish, Reliability, Thickness

References

[1] H. N. Wager, Impact of the contact on electrical systems, In Proc of Holm Seminar on Electric Contacts, Chicago: Illinois Institute of Technology, Public Litho Service, Inc. , 1976. 1 - 14.

[2] Sun A.C., Moffat H.K. Enos, D.G. Glauner C.S., Pore corrosion model for gold-plated copper contacts, Electrical Contacts, 2005. Proceedings of the 51st IEEE Holm Conference.

DOI: 10.1109/holm.2005.1518249

[3] M. Antler, Survey of contact fretting in electrical connectors, 13thIEEE Holm Conference on Electrical Contacts, 1984. 3-22.

[4] Carrie A. Morse , Neil R. Aukland, Harry C. Hardee, A statistical comparison of gold and palladium-nickel plating systems forvarious fretting parameters, IEEE Inc, 1995 , 2 (4) : 33 - 51.

DOI: 10.1109/holm.1995.482859

[5] Zhou Yilin, Analysis on the Electric Contacts Failure in Mobile Phones, Journal of Beijing University of Posts and Telecommunications, 2006(29)1.

[6] Zhou Yilin, Investigation on Analysis Methods of Wear of Gold finish on Coaxial Connectors, ACTA ELECTRONICA SINICA, 2006 Vol34 No10.