Low threshold-14 W/mm ZrO2/AlGaN/GaN metal-oxide-semiconductor heterostructure field effect transistors

被引:25
作者
Rai, S [1 ]
Adivarahan, V [1 ]
Tipirneni, N [1 ]
Koudymov, A [1 ]
Yang, JW [1 ]
Simin, G [1 ]
Khan, MA [1 ]
机构
[1] Univ S Carolina, Dept EE, Columbia, SC 29208 USA
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2006年 / 45卷 / 6A期
关键词
AlGaN/GaN; zirconium dioxide; threshold voltage; gate leakage current; field-plate; E-beam evaporation;
D O I
10.1143/JJAP.45.4985
中图分类号
O59 [应用物理学];
学科分类号
摘要
We report for the first time on the RF performance of a low-threshold AlGaN/GaN metal-oxide-semiconductor heterostructure field transistor (MOSHFET) with zirconium dioxide as the gate dielectric. Low gate leakage current of 5 x 10(-7) A/mm(2) and a threshold voltage which was only 1 V higher than that of an HFET were achieved. The RF power of these devices at 2 GHz was 14.32 W/mm at 50 V drain bias.
引用
收藏
页码:4985 / 4987
页数:3
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