GaN-on-Si Quasi-Vertical p-n Diode With Junction Termination Extension Based on Hydrogen Plasma Treatment and Diffusion

Xuan Liu, Maojun Wang*, Jin Wei*, Cheng P. Wen, Bing Xie, Yilong Hao, Xuelin Yang, Bo Shen

*Corresponding author for this work

Research output: Contribution to journalJournal Articlepeer-review

7 Citations (Scopus)

Abstract

Utilizing hydrogen plasma treatment and controlled diffusion, a junction termination extension (JTE) structure for vertical gallium nitride (GaN) p-n diode with gradient hole density (GHD) is spontaneously formed based on the selective area partial passivation of Mg acceptors with hydrogen. The reverse bias for the quasi-vertical GaN-on-Si p-n diodes to reach a leakage current of 1 A/cm2 was boosted from 631 to 1100 V. In addition, the fabricated diode possessed a superior rectifying behavior with an ON/OFF-current ratio of 1012 , a specific differential ON-resistance of 0.75 m\sf Ωcm2.

Original languageEnglish
Pages (from-to)1636-1640
Number of pages5
JournalIEEE Transactions on Electron Devices
Volume70
Issue number4
DOIs
Publication statusPublished - 1 Apr 2023
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 1963-2012 IEEE.

Keywords

  • Breakdown voltage (BV)
  • GaN-on-Si
  • diffusion
  • gallium nitride (GaN)
  • hydrogen
  • junction termination extension (JTE)
  • p-n diodes

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