Enhancement-Mode GaN MIS-HEMTs With n-GaN/i-AlN/n-GaN Triple Cap Layer and High-k Gate Dielectrics

被引:262
作者
Kanamura, Masahito [1 ]
Ohki, Toshihiro [1 ]
Kikkawa, Toshihide [1 ]
Imanishi, Kenji [1 ]
Imada, Tadahiro [1 ]
Yamada, Atsushi [1 ]
Hara, Naoki [1 ]
机构
[1] Fujitsu Labs Ltd, Atsugi, Kanagawa 2430197, Japan
关键词
ALD; enhancement mode; GaN; MIS high-electron-mobility transistor (MIS-HEMT); ALGAN/GAN HEMTS; TRANSISTOR; RESISTANCE;
D O I
10.1109/LED.2009.2039026
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This letter presents details of high-performance enhancement-mode GaN MIS high-electron-mobility transistor (MIS-HEMT) devices. Devices with an n-GaN/i-AlN/n-GaN triple cap layer, a recessed-gate structure, and high-k gate dielectrics show high drain current and complete enhancement-mode operation. The maximum drain current and threshold voltage (V-th) are 800 mA/mm and + 3 V, respectively. These results indicate that a recessed AlGaN/GaN MIS-HEMT with the triple cap could be a promising new technology for future device applications.
引用
收藏
页码:189 / 191
页数:3
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