High breakdown voltage achieved on AlGaN/GaN HEMTs with integrated slant field plates

被引:360
作者
Dora, Y. [1 ]
Chakraborty, A. [1 ]
McCarthy, L. [1 ]
Keller, S. [1 ]
DenBaars, S. P. [1 ]
Mishra, U. K. [1 ]
机构
[1] Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA
关键词
breakdown voltage; field plate; GaN; high electron mobility transistor (HEMT);
D O I
10.1109/LED.2006.881020
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
A self-aligned "slant-field-plate" technology is presented as an improvement over the discrete multiple field plates for high breakdown voltage AlGaN/GaN HEMTs. Devices were tested in Fluorinert to eliminate the breakdown of air, which was identified to limit the breakdown voltage in AlGaN/GaN HEMTs. A single integrated field plate, which is self-aligned with the gate, is shown to support more than a kilovolt breakdown voltage (V-br up to 1900 V was measured with Fluorinert). Devices made with this technology show a good large signal-frequency behavior. Various issues regarding breakdown measurements and interpretation of measurement results are presented.
引用
收藏
页码:713 / 715
页数:3
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