Patent ID: 6870385

Claim:
An anisotropically conductive sheet comprising: an insulating sheet body, in which a through-hole extending in a thickness-wise direction thereof has been formed, and an elastic anisotropically conductive film arranged in the through-hole in the insulating sheet body and supported by the inner peripheral edge portion about the through-hole, wherein the insulating sheet body is composed of a material having a modulus of elasticity of 1×10 8 to 1×10 10 Pa, a coefficient of linear thermal expansion of 3×10 −6 to 3×10 −5 K −1 and a saturation magnetization lower than 0.1 wb/m 2 , wherein the elastic anisotropically conductive film is composed of a plurality of conductive path-forming portions each extending in a thickness-wise direction of the film and arranged along a plane direction of the film in a state separated from each other and an insulating portions formed between these conductive path-forming portions, the conductive path-forming portions are obtained by filling conductive particles having a number average particle diameter of 30 to 150 μm and exhibiting magnetism at a high density in an elastic polymeric substance, and a coating layer composed of a noble metal and having a thickness of at least 20 nm is formed on surfaces of the conductive particles, and wherein each of the conductive path-forming portions has a durometer hardness of 15 to 45, and an electric resistance between conductive path-forming portions adjacent to each other is at least 10 MΩ.