Patent ID: 8241750

Claim:
A functional multilayer anisotropic conductive adhesive film comprising: a copolymer layer, comprising a copolymer of butyl acrylate, methyl acrylate, and glycol acrylate, made under presence of tetramethyl butyl peroxy-2-ethyl hexanoate; a reinforcing layer, comprising long chain imidazole derivatives, which are formed by a synthesis of 2,4-diamino-6-[-2-undecyl imidazolyl (1)]-ethyl-cis-triazine, 1-cyanoethyl-2-undecyl-imidazole trimellitate, and isocyanate derivative; a resin layer, comprising a polymer of tocopheroxyl, novolac epoxy, acrylic rubbers and an elastic mixture of acrylic rubbers and styrene-butadiene rubbers; and a conductive particle layer, comprising conductive particles and micro-encapsulating resin for receiving the conductive particles, wherein the diameter of the conductive particles is selected from the group consisting of 3.00 μm±0.05, 3.25 μm±0.05, 3.50 μm±0.05, 3.75 μm±0.05 and 4.00 μm±0.05; wherein the copolymer layer, the reinforcing layer, the resin layer and the conductive particle layer are successively bonded by coating and drying processes.