| abstract |
An electrically conductive material such as an anisotropic conductive film or the like that suppresses the occurrence of warpage in the electrical connection portion and does not deteriorate the conduction reliability of a connection member obtained by an electrical connection such as an anisotropic conductive connection, And has a structure sandwiched between the first insulating thermosetting resin composition layer and the second insulating thermosetting resin composition layer. The conductive particle-containing layer is formed by photo-radical polymerization of an acrylate-based radical polymerizable compound, a photo-radical polymerization initiator, an epoxy non-radical polymerizable compound and a conductive particle-containing resin composition layer containing conductive particles by light irradiation B stage. The first insulating thermosetting resin composition layer and the second insulating thermosetting resin composition layer each contain an epoxy non-radical polymerizing compound and a thermal cationic polymerization initiator or a thermal anionic polymerization initiator. |