AlGaN/GaN MIS-HEMTs with ZrO2 gate insulator

被引:0
|
作者
Sugimoto, T [1 ]
Ohno, Y [1 ]
Kishimoto, S [1 ]
Maezawa, K [1 ]
Osaka, J [1 ]
Mizutani, T [1 ]
机构
[1] Nagoya Univ, Dept Quantum Engn, Grad Sch Engn, Chikusa Ku, Nagoya, Aichi 4648603, Japan
关键词
D O I
暂无
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
AlGaN/GaN MIS-HEMTs using ZrO2 gate insulator with a large dielectric constant have been successfully fabricated. The gate leakage current decreased by more than three orders of magnitude compared to that of the conventional AlGaN/GaN HEMTs without the ZrO2 gate insulator. Current collapse has also been suppressed in the MIS-HEMTs. The decrease in g(mmax), which was observed in the case of Si3N4 MIS-HEMTs, was suppressed in the present MIS-HEMTs demonstrating the effectiveness of the ZrO2 gate insulator.
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页码:279 / 282
页数:4
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