Patent ID: 8636924

Claim:
An anisotropic conductive adhesive comprising an epoxy adhesive containing an acrylic resin obtained by copolymerizing 10 to 100 parts by mass of glycidyl methacrylate or diethylaminoethyl acrylate based on 100 parts by mass of ethyl acrylate, an epoxy compound and an alicyclic acid anhydride curing agent as a curing agent, and conducive particles dispersed in the epoxy adhesive, the acrylic resin having a weight average molecular weight of 5000 to 200000 and a glass transition temperature of 50° C. or less, wherein when elastic moduluses at 35° C., 55° C., 95° C., and 150° C. of a cured product of the anisotropic conductive adhesive are denoted by EM 35 , EM 55 , EM 95 , and EM 150 , respectively, and change rates in the elastic modulus between 55° C. and 95° C. and between 95° C. and 150° C. are denoted by ΔEM 55-95 and ΔEM 95-150 , respectively, the following expressions (1) to (5) are satisfied 700Mpa≦EM 35 ≦3000MPa (1) EM 150 <EM 95 <EM 55 <EM 35 (2) ΔEM 55-95 <ΔEM 95-150 (3) 20% <ΔEM 55-95 (4) 40% <ΔEM 95-150 (5).