| 摘要 |
The invention aims at providing silver-coated copper powder of excellent conductivity. The silver-coated copper powder provided by the invention is formed of pine tree crystal-shaped silver-coated copper powder particles. The silver-coated copper powder particles are formed by covering copper powder particles with sliver. The silver-coated copper powder is characterized by comprising the silver-coated copper powder particles. In the observation of the silver-coated copper powder particles using a SEM, the silver-coated copper powder particles have a main shaft, more than two branches are obliquely divided from the main shaft to form a shape of pine tree crystal which grows in two dimension or three dimension, the thickness of the main shaft (a) is 0.3 [mu]m-5.0 [mu]m, and the longest branch (b) stretching out of the main shaft is 0.6 [mu]m-10.0 [mu]m. |
