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报道了截止频率为218GHz的晶格匹配的In0.53Ga0.47As/In0.52Al0.48As高电子迁移率晶体管.这是迄今为止国内报道的截止频率最高的高电子迁移率晶体管.器件直流特性也很优异:跨导为980mS/mm,最大电流密度为870mA/mm.文中的材料结构和所有器件制备工艺均为本研究小组自主研制开发.
Reported a lattice matched In0.53Ga0.47As / In0.52Al0.48As high electron mobility transistor with a cutoff frequency of 218GHz, which is the highest cutoff frequency high electron mobility transistor reported so far in China. Excellent: Transconductance of 980mS / mm, the maximum current density of 870mA / mm. The text of the material structure and preparation of all devices are independent research and development of this research group.