Oxidation suppression in ytterbium silicidation by TiTiN bicapping layer
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Detail(s)
Original language | English |
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Pages (from-to) | 285-289 |
Journal / Publication | Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films |
Volume | 25 |
Issue number | 2 |
Publication status | Published - 2007 |
Link(s)
Abstract
Ytterbium (Yb) silicide is a promising contact material due to its low contact resistance and small Schottky barrier height in contact with n -type Si. However, as one of the rare earth metals, Yb is easily oxidized during physical vapor deposition and rapid thermal annealing. In this article, a bilayered TiTiN cap is proposed and demonstrated to effectively suppress oxidation during Yb silicidation. The authors' results reveal that diffusion of Ti atoms in the TiN layer plays a key role in oxidation suppression. © 2007 American Vacuum Society.
Citation Format(s)
Oxidation suppression in ytterbium silicidation by TiTiN bicapping layer. / Jiang, Yu-Long; Xie, Qi; Detavernier, Christophe et al.
In: Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films, Vol. 25, No. 2, 2007, p. 285-289.Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review