Patent ID: 9478323
Filing Date: 2016-10-25
CPC Classification: C22C,C22F,H01B

Claim Text:
1. A copper alloy for electronic materials, comprising 0.5-2.5 mass % of Co, 0.1-0.7 mass % of Si, optionally containing less than 1.0 mass % of Ni, further optionally containing at most 2.0 mass % in total of at least one selected from the group consisting of Cr, Mg, P, As, Sb, Be, B, Mn, Sn, Ti, Zr, Al, Fe, Zn, and Ag, the balance Cu and inevitable impurities, wherein, from a result obtained from measurement of an X ray diffraction pole figure, using a rolled surface as a reference plane, a peak height at β angle of 90° among diffraction peaks in {111} Cu plane with respect to {200} Cu plane by β scanning at α=35° is at least 2.5 times that of a standard copper powder, wherein the copper alloy satisfies the following formula: wherein in the formula, the unit of Co concentration is mass % and Kb is spring limit.