In order the copper alloy and its platy material for the electronic electric part, from the suspicious looking profile bar and that platy material or the suspicious looking profile bar 0.004 - 0.07

摘要

PROBLEM TO BE SOLVED: To provide an inexpensive copper alloy for electronic and electrical parts having high electric conductivity, excellent in heat resistance and capable of preventing the reduction of productivity and yield in a transistor assembling stage by using a lead frame to be produced, to provide a planar row material and a row material having a deformed cross section, and to provide a lead frame produced by using the same. ;SOLUTION: This copper alloy for electronic and electrical parts has a composition containing one or more selected from Fe, Ni and Co in 0.004 to 0.07 mass % in total and 0.005 to 0.05 mass % P, and the balance Cu with inevitable impurities.;COPYRIGHT: (C)2001,JPO