Diagnostic Tools for Evaluation of the Quality of the Anisotropic Conductive Adhesive Joints
Typ dokumentupříspěvek z konference - elektronický
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Isotropic and anisotropic electrically conductive adhesives (ICAs and AC As) are materials for special applications in electronic assembly. Quality of these adhesive joints is evaluated according of their electrical and mechanical properties. This paper is focused on evaluation of quality of Anisotropic Conductive Adhesives. Especially dependence of electrical resistance, noise and nonlinearity on bonding pressure is the main purpose of this research. Effect of curing (bonding) pressure ofACA was also analyzed with scanning electron microscope (SEM). Also influence of three different types of surface finishes (Cu, Cu+Sn, Cu+Ni/Au) of printed circuit boards has been examined and then evaluated effects on measured parameters.
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