Method for manufacturing anisotropic conductive film, and anisotropic conductive film

A method for manufacturing a connection structure, the method comprising:

• a disposing step of disposing a first electronic component and a second electronic component with a filler disposition film interposed the first electronic component and the second electronic component, the filler disposition film including:
• an insulating binder formed in a film shape, and a plurality of fillers disposed in a plan view on the insulating binder, wherein in a particle diameter distribution graph (X-axis:
• particle diameter (μm), Y-axis:
• number of particles) of the fillers, the shape of the graph is such that the slope is substantially infinite in a range at or above a maximum peak particle diameter;
• and
• a compression bonding step of compression bonding the second electronic component to the first electronic component through a compression bonding tool.

A filler disposition film comprising:

• an insulating binder formed in a film shape;
• and
• a plurality of fillers disposed in a plan view on the insulating binder, wherein
• in a particle diameter distribution graph (X-axis:
• particle diameter (μm), Y-axis:
• number of particles) of the filler, the shape of the graph is such that the slope is substantially infinite in a range at or above a maximum peak particle diameter.

A method for manufacturing a filler disposition film, the method comprising:

• a holding step of supplying fillers having a plurality of particle diameters onto a member having a plurality of opening parts, and
• holding the fillers in the opening parts;
• and
• a transfer step of transferring the fillers held in the opening parts to an adhesive film, wherein
• in a particle diameter distribution graph (X-axis:
• particle diameter (μm), Y-axis:
• number of particles) of the fillers held in the opening parts, the shape of the graph is such that the slope is substantially infinite in a range at or above a maximum peak particle diameter, and
• in a particle diameter distribution graph (X-axis:
• particle diameter (μm), Y-axis:
• number of particles) of the fillers included in the adhesive film, the shape of the graph is such that a difference in a cumulative distribution between a particle diameter D10 of a quantity accumulation of 10% from a small side of a particle diameter and a particle diameter D90 of a quantity accumulation of 90% thereof is greater than 25% of an average particle diameter.