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Conductive Adhesives for Electronic Assemblies

Published online by Cambridge University Press:  31 January 2011

C. T. Murray,
R. L. Rudman,
M. B. Sabade and
A. V. Pocius
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Abstract

A number of different types of adhesives are used in the assembly of electronic components and devices. This article provides an overview of such adhesives that also have another job–they work at conducting electricity or heat. The resins or binders in these adhesives range from thermosetting to pressure-sensitive. Conductivity is obtained by the judicious choice of filler. For electrically conducting adhesives, the fillers range from silver flake to silver-coated fibers. For thermally conducting adhesives, the fillers range from aluminum oxide to boron nitride. We also discuss a specific type of electrically conducting adhesive–the z-axis film adhesive. In these adhesives, particles are oriented in such a fashion that allows conduction in the direction perpendicular to the adhesive, but not in the plane of the adhesive.

Keywords

adhesivesanisotropic conductivityelectrical conductivityelectronic assembliesfillersisotropic conductivitythermal conductivity

Information

Type
Research Article
Information
MRS Bulletin , Volume 28 , Issue 6: Materials Science of Adhesives: How to Bond Things Together , June 2003, pp. 449 - 454
Copyright
Copyright © Materials Research Society 2003

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