| abstract |
This filler-containing film is provided with a structure in which a filler is held in a binder resin layer. The average particle size of the filler is 1-50 µm. The total thickness of the resin layer is in the range of 0.5-2 times the average particle size of the filler. The ratio (Lq/Lp) of the minimum distance (Lq) between pieces of the filler at one end in the lengthwise direction of the filler-containing film, said one end being at least 5 m away from another end in the lengthwise direction of the film, to the minimum distance (Lp) between pieces of the filler at the other end is 1.2 or lower. The filler is preferably arranged in a lattice. |