SILVER-COATED COPPER ALLOY POWDER AND METHOD FOR PRODUCING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a silver-coated copper alloy powder enabling a conductive film having a low volume resistivity and having an excellent storage stability (reliability) and migration resistance to be formed, and a method for producing the same.SOLUTION: The silver-coated copper alloy powder is obtained by: coating a copper alloy powder that has a composition containing at least one of 1 to 50 mass% of nickel and zinc, and the remainder comprising copper and inevitable impurities, with a 7 to 50 mass% silver-containing layer (layer comprising silver or silver compound) (with respect to the silver); then subjecting the copper alloy powder to heat treatment by heating it at 30 to 50°C for 10 to 120 minutes.