| 简介 |
PROBLEM TO BE SOLVED : To provide a method for manufacturing a sputtering target for forming a film containing Co, Ta and a rare-earth metal, which can enhance the density of the target to such a level that the target is hardly cracked and can be machined.
SOLUTION : This manufacturing method includes the steps of : preparing a mixture powder of an R-Co alloy powder which is an alloy powder of Co and R that is a rare-earth metal and a Ta powder so that the composition of the target comprises 5-10 atom% R, 5-10 atom% Ta and the balance Co with unavoidable impurities by a ratio; and hot-pressing the mixture powder in a vacuum or an inert-gas atmosphere.
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