ANISOTROPIC CONDUCTIVE FILM EXCELLENT IN CONNECTION RELIABILITY, AND CIRCUIT CONNECTING STRUCTURE USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide an anisotropic conductive film applied with the optimal value of a parameter which effects on the connection reliability. Ž

SOLUTION: A flexural elastic modulus ratio [M2/M1] which is a proportion of the flexural elastic modulus value M2after curing reaction completion and the flexural elastic modulus value M1before curing is 10 or more, and a curing behavior index value τ=ta/ttotal(ta: time for curing rate to reach 50%, ttotal: total curing time) is between 0.2 and 0.5 or between 0.3 and 0.75. An acrylate anisotropic conductive film has the optimized curing behavior and flexural elastic modulus ratio [M2/M1]. Ž

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