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 |
年: | 2013-06-01 |
卷: | |
期: | 6 |
页: | 051201-1 |
联系作者: | 刘新宇 |
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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. |
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