| 摘要 |
COPPER FOIL FOR PRINTED CIRCUITDisclosed is a copper foil for printed circuits prepared by forming a primary particle layer of copper on a surface of a copper foil, and then forming5 a secondary particle layer based on ternary alloy composed of copper, cobalt and nickel on the primary particle layer; in which the average particle size of the primary particle layer is 0.25 to 0.45 pm, and the average particle size of the secondary particles layer based on ternary alloy composed of copper, cobalt and nickel is 0.05 to 0.25 pm. Provided is a copper foil for printed circuits, in which powder fall from the copper foil can be reduced and the peeling strength and heat resistance can be improved by forming a primary particle layer of copper on a surface of a copper foil, and then forming a secondary particle layer based on copper-cobalt-nickel alloy plating on theprimary particle layer.15Fig. 5 |
