Properties of titanium nitride films for barrier metal in aluminum ohmic contact systems

被引:0
|
作者
Hara, Tohru [1 ]
Yamanoue, Akira [1 ]
Iio, Hiroki [1 ]
Inoue, Ken [1 ]
Washidzu, Gen [1 ]
Nakamura, Shigeaki [1 ]
机构
[1] Hosei Univ, Koganei, Japan
来源
Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers | 1991年 / 30卷 / 07期
关键词
Aluminum And Alloys--Contacts - Sputtering;
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学科分类号
摘要
Properties of titanium nitride (TiN) films deposited by reactive sputtering and dc magnetron sputtering from composite target are studied. In the as-deposited films, a TiN (200) grain, which is the lowest energy grain and is dominant in bulk TiN, is grown in films from composite target. A resistivity of 44 μΩ-cm is attained. These results show that high quality TiN films can be deposited by dc magnetron sputtering employed TiN composite target. However, a TiN (111) grain is grown in TiN films by the nitridation of Ti. Nitridation of a reactively sputtered TiN film in ammonium is also studied. The TiN films deposited from composite target and formed by the nitridation of titanium show good barrier performance in Al-Si/TiN/Si Ohmic contact.
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页码:1447 / 1451
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