CONDUCTIVE FILLER, CONDUCTIVE PASTE AND ARTICLE HAVING CONDUCTIVE FILM

摘要

Disclosed are a conductive filler which has excellent oxidation resistance and can be sintered easily, a conductive paste which has excellent storage stability in the air and is capable of forming a conductive film with high conductivity, and an article having conductive film with high conductivity. The conductive filler is characterized by containing a copper filler having an average aggregate particle diameter of 0.5-20 µm, copper nanoparticles having an average aggregate particle diameter of 50-200 nm and an aliphatic carboxylic acid.  The conductive filler is also characterized in that the copper nanoparticles are contained in an amount of 5-50 parts by mass per 100 parts by mass of the copper filler, and the aliphatic carboxylic acid is contained in an amount of 1-15 parts by mass per 100 parts by mass of the total of the copper filler and the copper nanoparticles.