Source-Connected p-GaN Gate HEMTs for Increased Threshold Voltage

被引:42
作者
Hwang, Injun [1 ]
Oh, Jaejoon [1 ]
Choi, Hyuk Soon [1 ]
Kim, Jongseob [1 ]
Choi, Hyoji [1 ]
Kim, Joonyong [1 ]
Chong, Soogine [1 ]
Shin, Jaikwang [1 ]
Chung, U-In [1 ]
机构
[1] Samsung Elect Co Ltd, Samsung Adv Inst Technol, Yongin 446712, South Korea
关键词
High-electron-mobility transistor (HEMT); p-GaN bridge; p-GaN gate HEMT; threshold voltage; Schottky contact; source-connected p-GaN; CONTACT RESISTANCE; OHMIC CONTACTS; ENHANCEMENT;
D O I
10.1109/LED.2013.2249038
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 pathway to increase the threshold voltage (V-TH) of p-GaN gate high-electron-mobility transistors (HEMTs) is presented. The hole depletion width in the p-GaN layer at the gate interface is one of the key controlling factors of V-TH in p-GaN gate HEMTs. In order to increase the depletion width, we devise a new device structure of p-GaN gate HEMT having a source-connected p-GaN bridge. We demonstrate that a bridged p-GaN gate HEMT structure increases the V-TH from 0.93 to 2.44 V.
引用
收藏
页码:605 / 607
页数:3
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