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发明授权
CN108701508B 导电粒子、绝缘被覆导电粒子、各向异性导电性粘接剂、连接结构体和导电粒子的制造方法 有权

导电粒子、绝缘被覆导电粒子、各向异性导电性粘接剂、连接结构体和导电粒子的制造方法
摘要：
提供一种在用作配合于各向异性导电性粘接剂中的导电粒子时能够兼顾优异的导通可靠性和绝缘可靠性的导电粒子。导电粒子(100a)具备复合粒子(103)和覆盖复合粒子(103)的金属层，所述复合粒子(103)具有树脂粒子(101)和配置于该树脂粒子(101)的表面的非导电性无机粒子(102)。金属层在其外表面以非导电性无机粒子(102)为核而具有突起(109)。在具有树脂粒子(101)的直径的1/2直径的同心圆内的表面，非导电性无机粒子(102)具有大于或等于40个且小于或等于200个的直径小于70nm的第一非导电性无机粒子(102a)，并且具有大于或等于5个且小于或等于50个的直径大于或等于90nm且小于或等于150nm的第二非导电性无机粒子(102b)。
摘要（英）：

Provided is a conductive particle for which, when used as a conductive particle added to an anisotropic conductive adhesive, both excellent conduction reliability and insulation reliability can be obtained. A conductive particle 100a is provided with: a composite particle 103 having a resin particle 101, and nonconductive inorganic particles 102 disposed on the surface of said resin particle 101; and a metal layer for covering the composite particle 103. The metal layer has projections 109 on the external surface of the nonconductive inorganic particles 102 which serve as cores. The nonconductive inorganic particles 102 have 40-200 first nonconductive inorganic particles 102a for which the diameter is less than 70 nm and have 5-50 second nonconductive inorganic particles 102b for which the diameter is 90-120 nm, on the surface inside a concentric circle having a diameter that is 1/2 the diameter of the resin particle 101.

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