Patent ID: 7618713

Claim:
A circuit-connecting material for interposing between circuit electrodes facing each other and electrically connecting the electrodes, after curing by heat and pressure, either by direct contact or via conductive particles present in the material, wherein the circuit-connecting material comprises: (1) a curing agent selected from peroxide compounds and azo compounds, wherein the curing agent is capable of generating free radicals upon heating, wherein the curing agent has a 10-hour half-life temperature of 40° C. or above and a 1-minute half-life temperature of 180° C. or below; (2) a radical-polymerizable substance; and (3) hydroxyl-group-containing resin having a weight-average molecular weight of 10,000 or more, wherein the curing agent is provided in an amount of from 0.05 to 10 parts by weight, based on 100 parts by weight of the total weight of the radical-polymerizable substance and the hydroxyl-group-containing resin, and wherein the circuit-connecting material has a modulus of elasticity of from 100 to 2000 MPa at 40° C. after curing.