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Updated: Jun 12, 2025

Plasma-assisted Molecular Beam Epitaxy of N-polar InAlN-barrier High-electron-mobility Transistors
Published on: November 24, 2016
Characterization of Trap States in AlGaN/GaN MIS-High-Electron-Mobility Transistors under Semi-on-State Stress
Ye Liang1,2, Jiachen Duan1,2, Ping Zhang2,3
1School of Advanced Technology, Xi'an Jiaotong-Liverpool University, Suzhou 215123, China.
Abstract:
Devices under semi-on-state stress often suffer from more severe current collapse than when they are in the off-state, which causes an increase in dynamic on-resistance. Therefore, characterization of the trap states is necessary. In this study, temperature-dependent transient recovery current analysis determined a trap energy level of 0.08 eV under semi-on-state stress, implying that interface traps are responsible for current collapse. Multi-frequency capacitance-voltage (C-V) testing was performed on the MIS diode, calculating that interface trap density is in the range of 1.37×1013 to 6.07×1012cm-2eV-1 from EC-ET=0.29 eV to 0.45 eV.
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