Patent ID: 10154587

Abstract:
An electrical connection material such as anisotropic conductive film that suppresses generation of warpage at electrical connection portion such as anisotropic conductive connection portion, and does not allow conduction reliability of connection body obtained by electrical connection such as anisotropic conductive connection to be reduced has a structure in which a conductive particle-containing layer is disposed between first insulating thermosetting resin composition layer and second insulating thermosetting resin composition layer. The conductive particle-containing layer is obtained by irradiating conductive particle-containing resin composition layer that contains radically polymerizable acrylate compound, photoradical polymerization initiator, non-radically polymerizable epoxy-based compound, and conductive particles with light, resulting in photoradical polymerization to form B stage state of conductive particle-containing resin composition layer. The first insulating thermosetting resin composition layer and second insulating thermosetting resin composition layer each contain non-radically polymerizable epoxy-based compound and thermal cationic polymerization initiator or thermal anionic polymerization initiator.