Electrical contact resistance of silver with different coatings

Author

Su, Bin ; Qu, Jianmin

Author_Institution

Georgia W. Woodruff Sch. of Mech. Eng., Georgia Inst. of Technol., Atlanta, GA, USA

fYear

2005

fDate

16-18 March 2005

Firstpage

75

Lastpage

78

Abstract

The contact resistance between silver rods is measured when different contact load is applied. The relation of tunnel resistivity and contact pressure is found based on the contact area calculation from Hertzian solution. The tunnel resistivity of clean silver rods, and silver rods with different coatings, such as stearic acid, adipic acid, malonic acid, oxalic acid, terephthalic acid, un-cured and cured epoxy, are measured. The tunnel resistivity - contact pressure curves of silver with difference coatings are plotted. The measured tunnel resistivity of silver can be used to calculate the contact resistance between silver contacts in electrically conductive adhesives.

Keywords

adhesives; contact resistance; electrical contacts; electrical resistivity; filler metals; silver; Hertzian solution; adipic acid; contact load; contact pressure; cured epoxy; electrical contact resistance; malonic acid; oxalic acid; silver rods; stearic acid; terephthalic acid; tunnel resistivity; uncured epoxy; Coatings; Conductive adhesives; Conductivity; Conductors; Contact resistance; Electric resistance; Electrical resistance measurement; Insulation; Mechanical engineering; Silver;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Packaging Materials: Processes, Properties and Interfaces, 2005. Proceedings. International Symposium on

ISSN

1550-5723

Print_ISBN

0-7803-9085-7

Electronic_ISBN

1550-5723

Type

conf

DOI

10.1109/ISAPM.2005.1432050

Filename

1432050