Stress Technology Impact on Device Performances and Reliability for $\langle100\rangle$ Sub-90 nm Silicon-on-Insulator Complementary Metal–Oxide–Semiconductor Field-Effect-Transistors
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概要
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In this work, we investigated the thickness effect of a high-stress gate capping layer (GC layer) on $\langle100\rangle$ 90 nm partially-depleted silicon-on-insulator complementary metal–oxide–semiconductor field-effect transistor (PD-SOI CMOSFETs). Additionally, we inspected the hot-carrier reliability on body-contacted (BC) SOI devices with various thicknesses of the GC layer (1100 and 700 Å) and a conventional SiN layer (CN layer). For nMOSFETs, devices with an 1100 Å GC layer possess worse characteristics and hot-carrier degradations than devices with a 700 Å GC layer in terms of excess high tensile stress. For pMOSFETs, the GC layer only slightly affects device performance, but seriously affects hot-carrier-induced device degradation. Therefore, the thickness of this high-stress GC layer should be optimized to improve the device performance.
- 2006-04-30
著者
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Lai Chieh-ming
Institute Of Microelectronics National Cheng Kung University
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Fang Yean-kuen
Institute Of Microelectronics National Cheng Kung University
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Yeh Wen-kuan
Department Of Electrical Engineering National University Of Kaohsiung
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Yeh Wen-Kuan
Department of Electrical Engineering, National University of Kaohsiung, No. 700, Kaohsiung University Road., Nan-Tzu Dist., Kaohsiung 811, Taiwan, R.O.C.
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Fang Yean-Kuen
Institute of Microelectronics, National Cheng Kung University, No. 1 University Road, Tainan 70101, Taiwan, R.O.C.
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