Vertical GaN-on-GaN Trench Junction Barrier Schottky Diodes with a Slanted Sidewall

Xinke Liu, Bo Li, Junye Wu, Jian Li, Wen Yue, Renqiang Zhu, Qi Wang, Xiaohua Li, Jianwei Ben, Wei He, Hsien Chin Chiu, Ke Xu, Ze Zhong*

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

Abstract

In this work, vertical gallium nitride (GaN) trench Junction Barrier Schottky (JBS) diodes fabricated with a novelty slanted p-GaN sidewall on a 2-inch free-standing GaN (FS-GaN) substrate were demonstrated. The slanted sidewall on edge of devices was conducted to suppress the peak of electric field distributions at high voltage. By realizing an off-state breakdown voltage VBR of 2 kV and an on-state resistance Ron of 1.34 m•cm2, the devices fabricated in this work achieved the highest power device figure-of-merit VBR 2 /Ron of 3.0 GW/cm2 in the reported vertical GaN JBS diodes which showed great potential in high voltage applications.

Original languageEnglish
Pages (from-to)34-38
Number of pages5
JournalIEEE Journal of the Electron Devices Society
Volume12
DOIs
StatePublished - 2024

Bibliographical note

Publisher Copyright:
© 2013 IEEE.

Keywords

  • diodes
  • high breakdown voltage
  • slanted sidewall

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