Characterizations of Enhancement-Mode Double Heterostructure GaN HEMTs With Gate Field Plates

被引:19
作者
Lee, Chun-Hsun [1 ]
Lin, Wei-Ren [1 ]
Lee, Yu-Hsuan [1 ]
Huang, Jian-Jang [2 ,3 ]
机构
[1] Natl Taiwan Univ, Grad Inst Photon & Optoelect, Taipei 10617, Taiwan
[2] Natl Taiwan Univ, Grad Inst Photon & Optoelect, Taipei 10617, Taiwan
[3] Natl Taiwan Univ, Dept Elect Engn, Taipei 10617, Taiwan
关键词
Enhancement mode (E-mode); field plate; GaN; high-electron mobility transistor; VOLTAGE EXTRACTION METHODS; THRESHOLD-VOLTAGE; ALGAN/GAN HEMTS; DEVICE; POWER;
D O I
10.1109/TED.2017.2786479
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
With the purpose to increase the threshold voltage of the enhancement mode GaN high-electron mobility transistors, we fabricated devices with gate field plates on the p-GaN/AlGaN/GaN/AlGaN double heterostructures. We observed an existence of a subthreshold region from the current-voltage transfer curves. The threshold voltage of the device extractedbased on linear extrapolation method is much higher than that of a typical device without a gate field plate. We investigated electrical properties based on carrier distributions with the influence of gate electric field at different channel regions.
引用
收藏
页码:488 / 492
页数:5
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