Conductive metal particles, conductive composite metal particles and applied products using the same
AssigneeJsr Corporation
InventorsTerukazu Kokubo, Naoki Yanadori
Life of this patent
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Abstract
Disclosed are provides conductive metal particles and conductive composite metal particles by which conductive materials having stable conductivity can be provided, and applied product thereof. The conductive metal particles have a number average particle diameter of 5 to 100 μm, a BET specific surface area of 0.01×103 to 0.7×103 m2/kg, a sulfur element content of at most 0.1% by mass, an oxygen element content of at most 0.5% by mass and a carbon element content of at most 0.1% by mass. The conductive composite metal particles are obtained by coating the surfaces of the conductive metal particles with a high-conductive metal.
Claims10
A conductive sheet comprising conductive composite metal particles in an organic polymeric substance in which the conductive composite metal particles are obtained by coating the surfaces of conductive metal particles with a high-conductive metal, wherein the conductive metal particles have a number average particle diameter of 5 to 100 μm, a BET specific surface area of 0.01×103 to 0.7×103 m2/kg, a sulfur element content of at most 0.1% by mass, an oxygen element content of at most 0.5% by mass and a carbon element content of at most 0.1% by mass;
- and the coefficient of variation of the particle diameter is at most 50% and the saturation magnetization of the particles is at least 0.1 Wb/m2.
A circuit board comprising a conductor containing conductive composite metal particles which are obtained by coating the surfaces of conductive metal particles with a high-conductive metal, wherein the conductive metal particles have a number average particle diameter of 5 to 100 μm, a BET specific surface area of 0.01×103 to 0.7×103 m2/kg, a sulfur element content of at most 0.1% by mass, an oxygen element content of at most 0.5% by mass and a carbon element content of at most 0.1% by mass;
- and the coefficient of variation of the particle diameter is at most 50% and the saturation magnetization of the particles is at least 0.1 Wb/m2.
Dependencies are inferred from the claim text.