High-Performance Integrated Dual-Gate AlGaN/GaN Enhancement-Mode Transistor

被引:80
作者
Lu, Bin [1 ]
Saadat, Omair Irfan [1 ]
Palacios, Tomas [1 ]
机构
[1] MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA
关键词
AlGaN/GaN; dual-gate; enhancement-mode (E-mode); high-electron-mobility transistor (HEMT); power electronics;
D O I
10.1109/LED.2010.2055825
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
In this letter, we present a new AlGaN/GaN enhancement-mode (E-mode) transistor based on a dual-gate structure. The dual gate allows the transistor to combine an E-mode behavior with low on-resistance and very high breakdown voltage. The device utilizes an integrated gate structure with a short gate controlling the threshold voltage and a long gate supporting the high-voltage drop from the drain. Using this new dual-gate technology, AlGaN/GaN E-mode transistors grown on a Si substrate have demonstrated a high threshold voltage of 2.9 V with a maximum drain current of 434 mA/mm and a specific on-resistance of 4.3 m Omega . cm(2) at a breakdown voltage of 643 V.
引用
收藏
页码:990 / 992
页数:3
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