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首页> 外文期刊>Electron Device Letters, IEEE >High-Power Ka-Band Performance of AlInN/GaN HEMT With 9.8-nm-Thin Barrier
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High-Power Ka-Band Performance of AlInN/GaN HEMT With 9.8-nm-Thin Barrier

机译:厚度为9.8nm的AlInN / GaN HEMT的高功率Ka波段性能

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摘要

We report the first CW Ka-band radio-frequency (RF) power measurements at 35 GHz from a passivated Al0.82In0.18N/GaN high-electron mobility transistor on SiC with 9.8-nm-thin barrier. This device delivered a maximum of 5.8 W/mm with a power-added efficiency of 43.6% biased at VDS = 20 V and 10% IDSS when matched for power at CW. The device was grown by metal-organic chemical vapor deposition with 2.8-¿m source-drain spacing and a gate length of 160 nm. An excellent ohmic contact was obtained with an Rc of 0.62 ¿·mm. The maximum extrinsic transconductance was 354 mS/mm with an IDSS of 1197 mA/mm at a VGS of 0 V, an ft of 79 GHz, and an fmax of 113.8 GHz.
机译:我们报告了在SiC上钝化的Al0.82In0.18N / GaN高电子迁移率晶体管在9.8 nm的薄壁垒下于35 GHz进行的首次连续波Ka波段射频(RF)功率测量。与CW功率匹配时,该器件最大输出功率为5.8 W / mm,在VDS = 20 V时偏置的功率附加效率为43.6%,IDSS为10%。该器件是通过金属有机化学气相沉积法生长的,其源漏间距为2.8 µm,栅长为160 nm。获得了一个出色的欧姆接触,Rc为0.62μ·mm。最大外在跨导为354 mS / mm,在VGS为0 V,ft为79 GHz,fmax为113.8 GHz时,IDSS为1197 mA / mm。

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