Paper Abstract and Keywords |
Presentation |
2013-06-18 11:15
Impact of metal gate electrodes on electrical properties of InGaAs MOS gate stacks Chih-Yu Chang, Masafumi Yokoyama, Sang-Hyeon Kim (Univ. of Tokyo), Osamu Ichikawa, Takenori Osada, Masahiko Hata (Sumitomo Chemical), Mitsuru Takenaka, Shinichi Takagi (Univ. of Tokyo) SDM2013-50 Link to ES Tech. Rep. Archives: SDM2013-50 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Electrical properties of Al2O3 and HfO2/InGaAs metal-oxide-semiconductor (MOS) capacitors with Al, Au and Pd gate electrodes have been evaluated in order to study the impact of metal gate electrodes on gate dielectrics and interface properties. It is found that MOS capacitors with Pd gate electrode can provide thinnest capacitance-equivalent-thickness (CET) and better HfO2/InGaAs MOS interfaces than those with Al and Au. However, the Al2O3/InGaAs interface properties are better in Au and Al gate electrodes than in Pd. Thus, the combination of high-k and gate metals must be carefully examined for realizing optimum gate stacks. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
InGaAs / Metal gate electrodes / High-k dielectrics / Interface state density / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 113, no. 87, SDM2013-50, pp. 33-37, June 2013. |
Paper # |
SDM2013-50 |
Date of Issue |
2013-06-11 (SDM) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
Copyright and reproduction |
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SDM2013-50 Link to ES Tech. Rep. Archives: SDM2013-50 |