AI-Ni-La system AI-based alloy sputtering target and process for producing the same

摘要

The invention relates to an Al-Ni-La system Al-based alloy sputtering target comprising Ni and La, wherein, when a section from (1/4)t to (3/4)t (t: thickness) in a cross section vertical to a plane of the sputtering target is observed with a scanning electron microscope at a magnification of 2000 times, (1) a total area of an Al-Ni system intermetallic compound having an average particle diameter of 0.3 µm to 3 µm with respect to a total area of the entire Al-Ni system intermetallic compound is 70% or more in terms of an area fraction, the Al-Ni system intermetallic compound being mainly composed of Al and Ni; and (2) a total area of an Al-La system intermetallic compound having an average particle diameter of 0.2 µm to 2 µm with respect to a total area of the entire Al-La system intermetallic compound is 70% or more in terms of an area fraction, the Al-La system intermetallic compound being mainly composed of Al and La.