Emerging silicon and nonsilicon nanoelectronic devices: opportunities and challenges for future high-performance and low-power computational applications
2005
Several key emerging nanoelectronic devices, such as Si nanowire field-effect transistors (FETs), carbon nanotube FETs, and III-V compound semiconductor quantum-well FETs, are assessed for their potential in future high-performance, low-power computation applications. Furthermore, these devices are benchmarked against state-of-the-art Si CMOS technologies. The two fundamental transistor benchmarking metrics utilized in this study are: (i) CVII versus L/sub G/; and ii) CVII versus I/sub ON//I/sub OFF/. While intrinsic device speed is emphasized in the first metric, the tradeoff between device speed and off-state leakage is assessed in the latter. For high-performance and low-power logic applications, low CVII and high I/sub ON//I/sub OFF/ values are both required. Based on the results obtained, the opportunities and challenges for these emerging novel devices in future logic applications are highlighted and discussed.
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