Sputter target, barrier film and electronic component

摘要

A sputter target is made of a Ti-Al alloy containing Al in the range of 1 to 30 atm %. In the Ti-Al alloy constituting the sputter target, Al exists in at least one of a solid solution state in Ti and a state in which Al forms an intermetallic compound with Ti, and variation in Al content in the entire target is limited within 10%. Furthermore, an average crystal grain diameter of the Ti-Al alloy is 500 mum or less, and variation in crystal grain diameter in the entire target is limited within 30%. A Ti-Al-N film as a barrier film is formed by using the sputter target made of the Ti-Al alloy as described above. An electronic component includes a barrier film formed on a semiconductor substrate.