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Electrically Conductive Adhesives Get Smaller

SpecialChem / Aug 14, 2002

Epoxy adhesives have been utilized for decades in virtually all environments. Of particular interest to the electronics industry is a class of epoxies that conduct electricity. Electrically conductive adhesives are utilized in all types of electronic devices and may be found in most microelectronic assemblies and integrated circuits. Conductive epoxies are used for bonding in capacitors, semiconductors, transistors, diodes, rectifiers and thermistors. These adhesives serve two basic functions: they provide bonding tailored to specific applications and operating conditions, and they create a conductive path between the two surfaces being bonded. Beyond these two criteria are a host of additional requirements. The epoxy resin and conductive filler must both be chosen with these requirements in mind. As electronics are reduced in size to lower power consumption and cost, conductive adhesives must parallel this trend toward the small. New work in nanotechnology is a sign of the ultimate goal of electronics manufacturers, namely to produce atomic-scale electrical components.

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