1. High performance 22/20nm FinFET CMOS devices with advanced high-K/metal gate scheme
- Author
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Hun-Jan Tao, H. C. Lin, Huan-Just Lin, Lee Chia-Fu, P.C. Yen, C.H. Huang, Yuan-Hung Chiu, W.S. Huang, C. C. Wu, King-Yuen Wong, Chun Chen, Stock Chang, Wang Shiang-Bau, Li-Shiun Chen, S.W. Chuang, Po-Kang Wang, Ming-Jie Huang, X.F. Yu, S.Y. Ku, Chien-Chao Huang, M.L. Cheng, Yung-Huei Lee, K. F. Yu, T.H. Li, C.M. Wu, Y. C. Peng, C.H. Tsai, Y.C. Lin, Tsz-Mei Kwok, Yi-Chun Huang, P.S. Lim, T.C. Gan, Tzong-Lin Wu, K.Y. Hsu, L.Y. Yang, S.S. Lin, L.W. Weng, T.H. Hsieh, F.K. Yang, C.T. Chan, Eric Ou-Yang, P.C. Hsieh, Derek Lin, S.B. Wang, Ming-Jer Chen, A. Keshavarzi, Chih-Yuan Lu, Chuan-Ping Hou, L.T. Lin, J.L. Yang, Yuh-Jier Mii, Chien-Chang Su, J.H. Chen, Hsieh Ching-Hua, Huan-Neng Chen, Y.W. Tseng, C. P. Lin, Chou Chun-Hao, A.S. Chang, Tseng Chien-Hsien, S.H. Liao, Tsung-Lin Lee, and M. Cao
- Subjects
Materials science ,Stack (abstract data type) ,CMOS ,business.industry ,Logic gate ,MOSFET ,Electrical engineering ,Static random-access memory ,business ,Metal gate ,Immersion lithography ,High-κ dielectric - Abstract
A high performance 22/20nm CMOS bulk FinFET achieves the best in-class N/P I on values of 1200/1100 µA/µm for I off =100nA/µm at 1V. Excellent device electrostatic control is demonstrated for gate length (L gate ) down to 20nm. Dual-Epitaxy and multiple stressors are essential to boost the device performance. Dual workfunction (WF) with an advanced High-K/Metal gate (HK/MG) stack is deployed in an integration-friendly CMOS process flow. This dual-WF approach provides excellent V th roll-off immunity in the short-channel regime that allows properly positioning the long-channel device V th . Enhanced 193nm immersion lithography has enabled the stringent requirements of the 22/20nm ground rules. Reliability of our advanced HK/MG stack is promising. Excellent SRAM static noise margin at 0.45V is reported.
- Published
- 2010