Patent ID: 7713364

Claim:
A method of manufacturing a manganese alloy sputtering target comprising the steps of: obtaining a manganese alloy ingot by a melting method selected from the group consisting of an inductive melting method, an arc melting method, and an electron beam melting method, and forging said manganese alloy ingot at an average actual strain rate of 1×10 −2 to 2×10 −5 (1/s) to form a forged manganese alloy sputtering target consisting of at least one of Ni, Pd, Pt, Rh, Ir, Au, Ru, Os, Cr and Re, and remnant Mn 39.8 to 98 at %, said forging step being performed at 0.75 Tm(K)≦T(K)≦0.98 Tm(K), wherein T(K) is the forging temperature and Tm(K) is the melting point of said manganese alloy.