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 (¼)t to (¾)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 mum to 3 mum 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 mum to 2 mum 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.