Patent ID: 9028658
Filing Date: 2015-05-12
Classification: C22C,C23C,H01J,H01L

Abstract:
1. A Mn-containing copper alloy sputtering target that generates few particles, comprising: a copper alloy substantially consisting of 0.6 to 30 mass % of Mn; and a balance being of copper and impurities, wherein the Mn-containing copper alloy includes copper having a purity of 99.999% or more and Mn having a purity of 99.9% or more, the impurities are controlled such that the content of metallic impurities including Fe, Ni, Cr, Si, Pb, Co, Mg and Zn is 40 ppm or less, oxygen content is 10 ppm or less, nitrogen content is 5 ppm or less, hydrogen content is 5 ppm or less, and carbon content is 10 ppm or less, and the Mn-containing copper alloy sputtering target has an equiaxed recrystallization structure having a grain size of 30 μm or less.