Design and implementation of 83-nm low noise InP-based InAlAs/InGaAs PHEMTs
| Autor: | Zhiming Wang, Xingchang Fu, Cui Yuxing, Jiang-Hui Mo, Xiguo Sun, Hui Huang, Liang Li, Xin Lü, Zhuobin Zhao, Zhifu Hu |
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| Rok vydání: | 2015 |
| Předmět: |
Materials science
business.industry Oscillation Transconductance Transistor Electrical engineering High-electron-mobility transistor Condensed Matter Physics Noise figure Cutoff frequency Electronic Optical and Magnetic Materials law.invention Saturation current law Extremely high frequency Materials Chemistry Optoelectronics Electrical and Electronic Engineering business |
| Zdroj: | Journal of Semiconductors. 36:084002 |
| ISSN: | 1674-4926 |
| DOI: | 10.1088/1674-4926/36/8/084002 |
| Popis: | 83-nm T-shaped gate InP-based In 0.52 Al 0.48 As/In 0.65 Ga 0.35 As pseudomorphic high electron mobility transistors (PHEMTs) with excellent DC and RF performance as well as low noise characteristics are reported, including a maximum saturation current density I dss of 894 mA/mm, a maximum extrinsic transconductance g m,max of 1640 mS/mm, an extrapolated cutoff frequency f t of 247 GHz and a maximum oscillation frequency f max of 392 GHz which were based on the measured S-parameters from 1 to 110 GHz. The minimum noise figure (NF m min ) measured by the cold-source method is 1 dB at 30 GHz associated with a gain of 14.5 dB at V ds of 0.8 V and I ds of 17 mA. These results were obtained by the combination of increased InAs mole fraction in the channel, gate size scaling, parasitic reduction and the quantization channel. These excellent results make it one of the most suitable devices for millimeter wave (MMW) low noise applications. |
| Databáze: | OpenAIRE |
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