AlGaN/GaN MIS-HEMTs with a p-GaN Cap Layer

被引:0
|
作者
Hsu, Che-Ching [1 ]
Shen, Pei-Chien [1 ]
Zhong, Yi-Nan [1 ]
Hsin, Yue-Ming [1 ]
机构
[1] Natl Cent Univ, Dept Elect Engn, 300 Zhongda Rd, Taoyuan 32001, Taiwan
来源
MRS ADVANCES | 2018年 / 3卷 / 03期
关键词
D O I
10.1557/adv.2017.626
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In this study, AlGaN/GaN MIS-HEMTs with a p-GaN cap layer and ALD deposited Al2O3 gate insulator were fabricated. Devices with two different thicknesses of p-GaN cap layers were investigated and compared. AlGaN/GaN MIS-HEMT with an 8-nm p-GaN cap showed a better DC characteristics than device with a 5-nm p-GaN cap. The drain current of 662.9 mA/mm, a high on/off current ratio of 2.67 x 10(9) and a breakdown voltage of 672 V were measured in device with an 8-nm p-GaN cap. In addition, lateral leakage current was investigated by using adjacent MIS gate structures with a separation of 3 mu m to investigate the leakage current.
引用
收藏
页码:143 / 146
页数:4
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