journal article·2017-09-01Open access

AlGaN/GaN high electron mobility transistors with a low sub-threshold swing on free-standing GaN wafer

Xinke Liu, Hong Gu, Kuilong Li, Lunchun Guo, Deliang Zhu, Youming Lu, Jianfeng Wang, Hao-Chung Kuo, Zhihong Liu, Wenjun Liu, Lin Chen, Jianping Fang, Kah-Wee Ang, Ke Xu, Jin-Ping Ao

AIP Advances· Volume 7· Issue 9

Abstract

This paper reported AlGaN/GaN high electron mobility transistors (HEMTs) with low sub-threshold swing SS on free-standing GaN wafer. High quality AlGaN/GaN epi-layer has been grown by metal-organic chemical vapor deposition (MOCVD) on free-standing GaN, small full-width hall maximum (FWHM) of 42.9 arcsec for (0002) GaN XRD peaks and ultralow dislocation density (∼104-105 cm-2) were obtained. Due to these extremely high quality material properties, the fabricated AlGaN/GaN HEMTs achieve a low SS (∼60 mV/decade), low hysteresis of 54 mV, and high peak electron mobility μeff of ∼1456 cm2V-1s-1. Systematic study of materials properties and device characteristics exhibits that GaN-on-GaN AlGaN/GaN HEMTs are promising candidate for next generation high power device applications.
Source: crossref · Quality: baseline

Research context

OpenAlex topics: GaN-based semiconductor devices and materials · Ga2O3 and related materials · Silicon Carbide Semiconductor Technologies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

College of Materials Science and Engineering, Shenzhen Key Laboratory of Special Functional Materials, Chinese Engineering and Research Institute of Microelectronics, Shenzhen University 1 , Shenzhen 518060, People’s Republic of China

Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), CAS 2 , Suzhou 215123, People’s Republic of China

Department of Photonics and Institute of Electro-Optical Engineering, National Chiao Tung University 3 , Hsinchu 300, Taiwan

Department of Electrical and Computer Engineering, National University of Singapore 4 , 117583, Singapore

Department of Microelectronics, Fudan University 5 , Shanghai 200433, People’s Republic of China

School of Microelectronics, Xidian University 6 , Xi’an 710071, People’s Republic of China

Funding

National key research and development plan

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