ANISOTROPICALLY ELECTROCONDUCTIVE ADHESIVE COMPOSITION, ANISOTROPICALLY ELECTROCONDUCTIVE FILM, CONNECTION STRUCTURE OF CIRCUIT MEMBER AND PROCESS FOR PRODUCING COATED PARTICLE

摘要

PROBLEM TO BE SOLVED: To provide an anisotropically electroconductive adhesive composition that can sufficiently prevent the occurrence of short circuit between adjacent circuit electrodes due to the aggregation of dispersed electroconductive particles even in the case when a connection pitch is narrow and can achieve excellent long-term connection reliability. SOLUTION: The anisotropically electroconductive adhesive composition is used for connecting a first circuit member having a first circuit electrode formed on the main surface of a first substrate to a second circuit member having a second circuit electrode formed on the main surface of a second substrate in such a manner that the first circuit electrode and the second circuit electrode are oppositely disposed and comprises (A) an adhesive and (B) a coated particle formed by coating a polar group-containing electroconductive particle having a polar group on at least part of the surface thereof with an insulating material comprising a polymer electrolyte capable of adsorbing the polar group and a fine inorganic oxide particle capable of adsorbing the polymer electrolyte. COPYRIGHT: (C)2008,JPO&INPIT