High-gate-voltage-swing region of normally-off p-GaN MIS-HEMT with ALDGrown Al2O3/AlN gate insulator layer

Chi Chuan Chiu*, Chia Hao Liu, Hsien Chin Chiu, Liann Be Chang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Metal-insulator-semiconductor p-type GaN highelectron- mobility transistor with an Al2O3/AlN deposited by atomic layer deposition was investigated. The selected insulator, AlN has been proven to have a good interface with GaN. A traditional p-GaN device without an Al2O3/AlN layer was processed for comparison. Due to the Al2O3/AlN layer, the gate leakage was lower, and the threshold voltage was higher, at 4.7 V. Additionally, excellent turn-on voltage was obtained. Furthermore, low current degradation and smaller VTH shift at high temperatures was also observed. Hence, growing a goodquality Al2O3/AlN layer can achieve an enhancementmode operation with superior stability and high gate swing region.

Original languageEnglish
Title of host publicationCS MANTECH 2020 - 2020 International Conference on Compound Semiconductor Manufacturing Technology, Digest of Papers
PublisherCS Mantech
Pages245-248
Number of pages4
ISBN (Electronic)9781893580305
StatePublished - 2020
Event2020 International Conference on Compound Semiconductor Manufacturing Technology, CS MANTECH 2020 - Tuczon, United States
Duration: 11 05 202014 05 2020

Publication series

NameCS MANTECH 2020 - 2020 International Conference on Compound Semiconductor Manufacturing Technology, Digest of Papers

Conference

Conference2020 International Conference on Compound Semiconductor Manufacturing Technology, CS MANTECH 2020
Country/TerritoryUnited States
CityTuczon
Period11/05/2014/05/20

Bibliographical note

Publisher Copyright:
© CS MANTECH 2020 - 2020 International Conference on Compound Semiconductor Manufacturing Technology, Digest of Papers.

Keywords

  • MIS
  • NORMALLY-OFF
  • P-GAN GATE HEMT

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