Patent ID: 7601281
Filing Date: 2009-10-13
Classification: H01L,H01R

Abstract:
1. A method of producing an anisotropic conductive sheet, which method comprises: (a) placing a flowable insulating resin in a space of a sheet-like molding die, wherein the flowable insulating resin has conductive magnetic particles dispersed therein, (b) simultaneously performing, relative to the space of the sheet-like molding die, the processes of (c) solidifying the flowable insulating resin to produce 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, wherein the process (i) is performed by placing, according to the arrangement pattern of the conductive path, a first magnet in or behind a first main wall surface of two main wall surfaces forming the space of the sheet-like molding die, when seen from the space of the sheet-like molding die, and the process (ii) is performed by placing a second magnet behind the first magnet or behind a second main wall surface opposite the first main wall surface, when seen from the space of the sheet-like molding die, and moving the second magnet in the sheet surface expanding direction.