METHOD FOR MANUFACTURING COPPER ALLOY STRIP OR COPPER ALLOY FOIL WITH EXCELLENT STRENGTH, ELECTRIC CONDUCTIVITY AND BENDABILITY, COPPER ALLOY STRIP OR COPPER ALLOY FOIL, AND ELECTRONIC PARTS USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing a copper alloy strip or copper alloy foil having excellent strength, electric conductivity and bendability. SOLUTION: Electrolysis using a plating bath containing plating additives is performed to manufacture an electrolytic copper alloy strip or electrolytic copper alloy foil having≤0.4μm average crystal grain size. After the electrolytic copper alloy strip or the electrolytic copper alloy foil is cold rolled, heat treatment is applied or heat treatment is not applied. COPYRIGHT: (C)2008,JPO&INPIT