Patent ID: 7740718

Claim:
A sputtering target for magnetron sputtering, comprising: a nickel alloy sputtering target consisting essentially of nickel and an alloy element, said alloy element being selected from a group consisting of Ti, Zr, Hf, V, Nb, Ta, Cr, Co, Pt, Pd, Ir, Fe and Mn, a content of said alloy element within said nickel alloy of said target being 0.5 to 7 at % with the remainder 93 to 99.5 at % being nickel; said target having a thickness of 5 mm or less, a magnetic permeability of 100 or more, an average crystal grain size within said target of 20 to 1200 μm, and an even metallographic structure without coarse crystal grains that are fivefold or more in growth from said average crystal grain size; and said nickel alloy of said target having a purity of 5N (99.999 wt %) or more.