| 摘要 |
PROBLEM TO BE SOLVED: To obtain the subject material excellent in low-temperature curing property, having a pot life, inserted between mutually opposed circuit electrodes, pressurizing mutually opposed circuit electrodes to electrically connect between electrodes in pressurizing direction by including a curing agent, a radically polymerizable substance and electroconductive particles as essential components. SOLUTION: This circuit connecting material consists essentially of (A) a curing agent generating a free radical by heating, (B) a radical polymerizable substance and (C) electroconductive particles whose surface layer is composed of at least one kind of metal selected from gold, silver and a metal of platinum group. Furthermore, a temperature in 10 hr half life of the component A is >=40 deg.C and a temperature in 1 min half life of the component A is <=180 deg.C, and benzoyl peroxide, etc., is used as the component A and methyl acrylate, etc., is used as the component B and thickness of metal of surface layer is preferably 300Å.
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