Production method of anisotropic conductive sheet

A method of producing the following anisotropic conductive sheet (A), which comprises

• placing a flowable insulating resin in the space of a sheet-like molding die, which resin comprising conductive magnetic particles dispersed therein,
• simultaneously performing, relative to the space of the sheet-like molding die, the processes of
• (i) applying, in a sheet thickness direction, a first magnetic field to the position to form a conductive path in the space of the sheet-like molding die to locally collect the conductive magnetic particles together to form a conductive path, and
• (ii) applying, in the sheet thickness direction, a second magnetic field to an intermediate region between the positions to form conductive paths, to move the second magnetic field in the sheet surface expanding direction, thereby moving the conductive magnetic particles in the intermediate region to form the conductive path, and then
• solidifying the flowable insulating resin:
• (A) an anisotropic conductive sheet comprising an insulating resin sheet and conductive magnetic particles contained in the sheet, wherein the conductive magnetic particles are locally collected together to form multiple conductive paths penetrating the insulating resin sheet in the thickness direction.