Circuit connecting material, a connection structure and a manufacturing method thereof

Circuit connecting material of the present invention comprises a first circuit member having a first circuit electrode formed, the second circuit electrodes on a main surface of the second substrate is formed on the main surface of the first substrate and a second circuit member, the first circuit electrode and second circuit electrode be a circuit connecting material for connecting in a state of being opposed, and a curing agent that generates free radicals, radical polymerization synthesis and substance, containing a compound having a secondary thiol group. Circuit connecting material of the present invention is excellent in at a low temperature short curing time, and storage stability.