The channel hot-carrier (CHC) degradation in metal-oxide semiconductor field-effect transistors based on a high-k dielectric with strained-Si/relaxed Si1-xGex structures has been little studied so far. However, due to the high mobility enhancement observed in these samples, a deeper study of the CHC impact on them is necessary. In this article, the effects of the Ge content, overgrowth, channel length, and operating temperature on the CHC degradation have been analyzed. The results show that devices with higher mobility suffer larger CHC aging both at room temperature and in the elevated temperature range. (c) 2011 American Vacuum Society. [DOI: 10.1116/1.3523396]
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Tsinghua National Laboratory for Information Science and Technology Institute of MicroelectronicsTsinghua UniversityDepartment of Physics Tsinghua University
谭桢
赵连锋
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Tsinghua National Laboratory for Information Science and Technology Institute of MicroelectronicsTsinghua University
Department of Electrical Engineering Princeton UniversityDepartment of Physics Tsinghua University
赵连锋
王敬
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Tsinghua National Laboratory for Information Science and Technology Institute of MicroelectronicsTsinghua UniversityDepartment of Physics Tsinghua University
王敬
刘易周
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Department of Physics Tsinghua UniversityDepartment of Physics Tsinghua University
刘易周
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司晨
袁方
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Tsinghua National Laboratory for Information Science and Technology Institute of MicroelectronicsTsinghua UniversityDepartment of Physics Tsinghua University
袁方
段文晖
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Department of Physics Tsinghua UniversityDepartment of Physics Tsinghua University
段文晖
许军
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Tsinghua National Laboratory for Information Science and Technology Institute of MicroelectronicsTsinghua UniversityDepartment of Physics Tsinghua University