Patent ID: 8430978

Claim:
A metallic glass sputtering target comprising: a sintered body target structure having a diameter of 100 mm or more and an ultrafine and uniform structure with an average crystallite size of 1 nm to 5 nm, said average crystallite size of 1 nm to 5 nm being uniform entirely throughout said sputtering target, and said target structure being of an amorphous state in which a grain boundary is not observable and being without any crystal growth; said sputtering target being made of an alloy having a three or more component system containing at least one element selected from the group consisting of Zr, Pt, Pd, Fe, Co, and Cu as its primary component in an atomic ratio of 50 at % or more, said alloy satisfying the requirements of metallic glass formation having an atomic radius difference of 12% or more and negative heat of mixing of constituent elements; said sputtering target having a relative density of at least 96.4%; and said sintered body target structure being made of sintered gas atomized powder such that said sintered body target structure has powder grains that form said sintered body target structure.