Patent ID: 9732413
Date: 2017-08-15
CPC Classifications: B22F,C22C,C23C

Claim:
1. A ruthenium alloy sputtering target comprising a sintered compact obtained by sintering a mixed powder consisting of a powder of ruthenium and a powder of a metal capable of forming oxides thereof more easily than ruthenium, wherein said metal is tantalum, niobium, titanium, hafnium or zirconium, wherein said target has a purity excluding gas components of 99.95 wt % or higher, wherein said target contains said metal in an amount of 5 at % to 60 at %, has a relative density of 99% or higher, and has an oxygen content as an impurity of 1000 ppm or less, and wherein said target has a structure in which ruthenium and said metal are not completely alloyed, the structure having an average crystal grain size of 5 to 50 μm.