CONDUCTIVE PASTE

PURPOSE:To obtain a conductive paste which has a high conductivity and an excellent economy, and can improve a short circuit between electrodes and between wirings, when an electric field is applied in the ambiance of a high temperature and a high humidity, by including an almost spherical form of minute particles, a flake form silver powder, a copper powder, and a nitrophenyl hydrazine genus, to the conductive paste. CONSTITUTION:This conductive paste includes an almost spherical form of minute particles with the particle size less than 30mum, a flake form silver powder, a copper powder, and a nitrophenyl hydrazine genus. The ratio of the copper powder, the almost spherical form of minute particles, and the flake form silver powder is favorable to be 1:20 to 1:1 in respect of the conductivity. As the nitrophenyl hydrazine genus, it is favorable to use one sort or a mixture of plural sorts of 3-nitrophenyl hydrazine and 3, 5-dinitrophenyl hydrazines. The amount of the nitrophenyl hydrazine genus is favorable to be 0.05 to 2.0wt% to the solid component of the conductive paste in respect of the migration and the economy.