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首页> 外文期刊>Journal of Applied Polymer Science >Electrical characterization of individual metal-coated polymer spheres used in isotropic conductive adhesives
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Electrical characterization of individual metal-coated polymer spheres used in isotropic conductive adhesives

机译：各向同性导电胶中使用的单个金属包覆的聚合物球的电特性

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Isotropic conductive adhesives (ICAs) filled with metal-coated polymer spheres (MPS) have been proposed to improve the mechanical reliability compared to conventional ICAs filled with silver flakes. The electrical properties of MPS play an important role in the electrical performance of macroscopic MPS-based ICAs. This article deals with the electrical characterization of individual MPS using a nanoindentation-based flat punch method, in which the resistance and the deformation of single MPS were monitored simultaneously. Four groups of silver-coated polymer spheres (AgPS) with identical polymer cores but different silver coating thicknesses were tested. The resistance of AgPS decreases gradually with increasing deformation degree of particles, and increases when the deformation of particles is reduced. In addition, the resistance of individual AgPS is dependent on the physical properties of the silver coating, such as thickness, uniformity, and porosity. The thicker the silver coating is, the lower and more stable the resistance of AgPS is. (C) 2016 Wiley Periodicals, Inc.
机译：与填充有银薄片的传统ICA相比，已提出了填充有金属涂层的聚合物球（MPS）的各向同性导电胶（ICA）。 MPS的电性能在基于MPS的宏观ICA的电性能中起着重要作用。本文使用基于纳米压痕的平冲方法对单个MPS进行电学表征，其中同时监测单个MPS的电阻和变形。测试了四组具有相同聚合物核但具有不同银涂层厚度的涂银聚合物球（AgPS）。 AgPS的电阻随着颗粒变形程度的增加而逐渐减小，而当颗粒变形减小时则增加。此外，单个AgPS的电阻取决于银涂层的物理特性，例如厚度，均匀性和孔隙率。银涂层越厚，AgPS的电阻越低且越稳定。 （C）2016威利期刊公司

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