Schottky Barrier Height Reduction of NiGe/Ge Junction by P Ion Implantation for Metal Source/Drain Ge CMOS Devices

被引:0
作者
Oka, Hiroshi [1 ]
Minoura, Yuya [1 ]
Hosoi, Takuji [1 ]
Shimura, Takayoshi [1 ]
Watanabe, Heiji [1 ]
机构
[1] Osaka Univ, Grad Sch Engn, Dept Mat & Life Sci, Suita, Osaka 5650871, Japan
来源
2014 IEEE INTERNATIONAL MEETING FOR FUTURE OF ELECTRON DEVICES, KANSAI (IMFEDK) | 2014年
关键词
germanium; ion implantation; nickel germanide; Schottky barrier height; junction characteristics; ACTIVATION; GERMANIUM;
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We have demonstrated effective electron Schottky barrier height (eSBH) reduction of NiGe/Ge contacts using phosphorus ion implantation after germanidation. The eSBH was drastically reduced from 0.62 eV to 0.09 eV under optimum implantation and subsequent annealing conditions. Moreover, systematic studies of NiGe/Ge contacts with various P ion profiles indicated the variation in the eSBH at NiGe/Ge interface. This method allows us to design and control junction characteristics for future Ge-based devices.
引用
收藏
页数:2
相关论文
共 4 条
[1]   Germanium n-type shallow junction activation dependences -: art. no. 091909 [J].
Chui, CO ;
Kulig, L ;
Moran, J ;
Tsai, W ;
Saraswat, KC .
APPLIED PHYSICS LETTERS, 2005, 87 (09)
[2]   Activation and diffusion studies of ion-implanted p and n dopants in germanium [J].
Chui, CO ;
Gopalakrishnan, K ;
Griffin, PB ;
Plummer, JD ;
Saraswat, KC .
APPLIED PHYSICS LETTERS, 2003, 83 (16) :3275-3277
[3]   Fermi-level pinning and charge neutrality level in germanium [J].
Dimoulas, A. ;
Tsipas, P. ;
Sotiropoulos, A. ;
Evangelou, E. K. .
APPLIED PHYSICS LETTERS, 2006, 89 (25)
[4]   Diffusion and activation of n-type dopants in germanium [J].
Koike, Masahiro ;
Kamata, Yoshiki ;
Ino, Tsunehiro ;
Hagishima, Daisuke ;
Tatsumura, Kosuke ;
Koyama, Masato ;
Nishiyama, Akira .
JOURNAL OF APPLIED PHYSICS, 2008, 104 (02)