Patent ID: 9011726
Filing Date: 2015-04-21
Classification: H01B,H05K

Abstract:
1. Electrically conductive powder which is substantially disagglomerated electrical conductive powder, comprising polyhedral particles and flake particles, wherein at least 91% of the particles are disagglomerated, wherein small particles being less in size than a particle size for which 30% of the total particles are smaller have an average aspect ratio of not less than 3, the upper limit of the average aspect ratio of the small particles being not more than 20, the average aspect ratio of the small particles is at least 1.3 times greater than that of large particles being not less in size than the particle size for which 30% of the total particles are smaller, the average aspect ratio of the large particles being from 1 to 6, the substantially disagglomerated electrically conductive powder is surface treated with not more than 0.5 wt % of a fatty acid based on the weight of the electrically conductive powder, the electrically conductive powder further comprises easily-dispersible fine silver particles that have an average primary particle diameter of not more than 2.5 μm and a relative tap density of not less than 45%, and the weight ratio of the electrically conductive powder and the easily-dispersible fine silver particles is in the range of 95:5 to 55:45.