Connection structure

A method for producing a connection structure in which a first electronic component having a terminal pattern in which a plurality of terminals are arranged side by side in a radial form and a second electronic component having a terminal pattern corresponding to the terminal pattern of the first electronic component are anisotropically conductively connected using an anisotropic conductive film, wherein

• the anisotropic conductive film is an anisotropic conductive film in which conductive particles are arranged in a lattice form in an insulating resin layer in a plan view, and the lattice form arrangement has such an arrangement pitch and an arrangement direction that each terminal captures three or more conductive particles in effective connection regions of the first electronic component and the second electronic component.

A method for producing a connection structure in which a first electronic component having a terminal pattern in which a plurality of terminals are arranged side by side in a radial form and a second electronic component having a terminal pattern corresponding to the terminal pattern of the first electronic component are anisotropically conductively connected using an anisotropic conductive film, wherein

• the anisotropic conductive film has a multiple circular region in which conductive particles are disposed on a plurality of concentric circles (including concentric ellipses) in an insulating resin layer in a plan view, and when a first line is defined as a line connecting between a first conductive particle on a first concentric circle and a center of the circles, and a second line is defined as a line connecting between a second conductive particle, which is the nearest to the first conductive particle, on a second concentric circle adjacent to the first concentric circle and the center of the circles, the conductive particles are disposed such that the first line and the second line do not coincide with each other.

An anisotropic conductive film in which conductive particles are arranged in a lattice form, the anisotropic conductive film being used for anisotropically conductively connecting a first electronic component having a terminal pattern in which a plurality of terminals are arranged side by side in a radial form and a second electronic component having a terminal pattern corresponding to the terminal pattern of the first electronic component, wherein

• when, in the anisotropic conductive film, γ represents an angle formed between an arrangement axis having a smallest arrangement pitch or a second smallest arrangement pitch of the conductive particles and a short-side direction of the anisotropic conductive film, and
• αmax represents a maximum value of an angle formed between a center axis extending in a long-side direction of each terminal constituting the terminal pattern and a short-side direction of the terminal pattern,
• the anisotropic conductive film has an arrangement axis satisfying γ>αmax.

An anisotropic conductive film in which conductive particles are disposed in an insulating resin layer, wherein

• the anisotropic conductive film has a multiple circular region in which the conductive particles are disposed on a plurality of concentric circles in the insulating resin layer in a plan view, and when a first line is defined as a line connecting between a first conductive particle on a first concentric circle and a center of the circles, and a second line is defined as a line connecting between a second conductive particle, which is the nearest to the first conductive particle, on a second concentric circle adjacent to the first concentric circle and the center of the circles, the conductive particles are disposed such that the first line and the second line do not coincide with each other.