| abstract |
A filler-containing film capable of precisely pressing an electronic component with a lower thrust has a filler dispersed layer in which fillers are regularly arranged in a resin layer, and the area occupancy of the filler in a plan view is 25% or less, the number of It is a film in which the ratio (La/D) of the layer thickness (La) of the formation layer to the average diameter (D) of the fillers (La/D) is 0.3 or more and 1.3 or less, and the ratio of the number of fillers present in non-contact with each other to the entire filler is 95% or more. . The number ratio in which fillers exist in a non-contact mutually with respect to the whole filler becomes like this. Preferably it is 99.5 % or more. |