论文编号: 172511O120130037
第一作者所在部门:
论文题目: Improved Performance of Highly Scaled AlGaN/GaN High-Electron-Mobility Transistors Using an AlN Back Barrier
论文题目英文:
作者: 刘新宇
论文出处:
刊物名称: Applied Physics Express
: 2013-06-01
:
: 6
: 051201-1
联系作者: 刘新宇
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影响因子:
摘要: An ultrathin AlN layer is inserted between the GaN channel and buffer in the fabrication of deep-submicrometer AlGaN/GaN high-electron-mobility transistors (HEMTs). The wide bandgap of AlN establishes a high back barrier and thus enhances the confinement of two-dimensional electron gas under high drain bias voltages. Owning to the effective suppression of short-channel effects in the device with a highly scaled gate length, the fabricated AlN back barrier HEMTs show better pinch-off quality, lower subthreshold current, lower drain-induced barrier lowering factor, and better high-frequency response than the reference device without an AlN back barrier.
英文摘要:
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