Patent ID: 7182977

Claim:
A method for manufacturing a composite substance for forming a conductive paste, comprising: washing metal or metal compound particles with water to form an aqueous dispersion comprising one or more of the metal or the metal compound particles, and water; mixing a first portion of a solvent into the aqueous dispersion in an amount of 0.2 to 0.7 weight parts relative to 100 weight parts of the metal or the metal compound particles, thereby agglomerating and precipitating the metal or the metal compound particles, to form a first slurry comprising 5 to 10 parts by weight of water relative to 100 parts of the metal or the metal compound particles, wherein the solvent is compatible with an organic component present in the conductive paste; then mixing a second portion of the solvent into the first slurry in an amount of 0.2 to 2.5 weight parts relative to 100 weight parts of the metal or the metal compound particles, to form a second slurry, wherein the mixing of the second portion of the solvent with the first slurry replaces a residual part of the water adhered to the surface of the metal or the metal compound particles; and drying said metal or metal compound particles having said solvent adhering to the surface thereof.