CONDUCTIVE SHEET MATERIAL AND ELECTRIC CONNECTION STRUCTURE

PROBLEM TO BE SOLVED: To provide a conductive sheet material which has both conductivity and heat radiation and low thermal expansion performance in the surface direction and thickness direction. SOLUTION: This relates to a conductive material A. In the case the volume of powder of the conductive filler 1 is made a total of the volume of whole individual particles of the conductive filler 1 and the volume of the gap between the particles, when the powder of the conductive filler 1 is compressed until immediately before the average particle size of the conductive filler 1 changes, the conductive filler 1 has the volume percentage of 65 vol.% or more of the whole individual particles of the conductive filler 1 out of the powder of the conductive filler 1 after compression. The conductive sheet material A is formed by forming in a sheet-shape a thermosetting resin composition which is prepared by blending the conductive filler which is further added with 5-20 mass% of the conductive filler 1 and a thermosetting resin 2 of the identical volume percentage as the gap in a half-curing state. COPYRIGHT: (C)2010,JPO&INPIT