CONDUCTIVE PARTICLE, METHOD FOR PRODUCING THE SAME, METHOD FOR PRODUCING INSULATED CONDUCTIVE PARTICLE, AND ANISOTROPIC CONDUCTIVE ADHESIVE FILM

摘要

PROBLEM TO BE SOLVED: To provide an anisotropic conductive adhesive film which can sufficiently prevent a connection failure in the connection of a circuit electrode in which pitch is narrowed and area is narrowed, to provide a method for producing an insulated conductive particle capable of materializing the same, to provide a conductive particle capable of obtaining the insulated conductive particle, and to provide a method for producing the same. SOLUTION: A conductive particle includes a gold layer with the average film thickness of≤300Åformed on a nickel layer as the outermost layer, and the elemental composition ratio between nickel and gold (Ni/Au) on the surface of the conductive particle by X-ray photoelectron spectroscopy analysis is≤0.4. COPYRIGHT: (C)2009,JPO&INPIT