Patent ID: 8003019

Claim:
A silver particle dispersion ink for interconnection formation by inkjet method comprising a silver particle powder having an average particle diameter (D TEM ) of 50 nm or less, the surface of the particle being covered with an organic protective material of an amine compound having one or more unsaturated bond in one molecule, dispersed in a non-polar or small polar liquid organic medium having a boiling point of 60 to 300° C., wherein the silver particle dispersion ink is a Newtonian liquid having a viscosity of 50 mPa·s or less, passes through a membrane filter having a pore diameter of (an average particle diameter of silver particle powder +20 nm), and has a silver concentration of 5 to 90 wt %, a surface tension of 80 mN/m or less, a pH of 6.5 or more, and an ignition loss of less than 5%.