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August 22, 2025Engineering Research Express

Channel Material Impact on HEMT Performance: Insights from GaN, AlGaN, and InGaN

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Authors

WHWagma HidayatMUMuhammad Usman

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Overview

Numerical analysis reveals superior transconductance and 2DEG confinement in InGaN HEMTs, indicating suitability for specific applications.

Key Points

  • InGaN HEMTs exhibit the highest performance in terms of transconductance and electron concentration, with implications for device efficiency.
  • Maximum saturated drain current densities for Al0.3Ga0.7N/GaN, Al0.3Ga0.7N/Al0.11Ga0.89N, and Al0.3Ga0.7N/In0.11Ga0.89N HEMTs are 0.89 A/mm and 2.27 A/mm.
  • Numerical assessment focused on channel material impact, analyzing conduction profiles and breakdown voltage characteristics across designs.
  • Higher breakdown voltage of 1501 V in AlGaN HEMTs suggests enhanced suitability for high-voltage applications.

Cite This Study

Hidayat et al. (2025) studied this question.

synapsesocial.com/papers/68af540fad7bf08b1eadb133https://doi.org/10.1088/2631-8695/adfeb7
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Effect of AlGaN and InAlGaN Barrier Layers on the Performance of GaN-based HEMTs on Sapphire Substrates2026 · 2 citations
  2. 2Improvement of AlGaN/ GaN based HEMT with high performance rate for integrated circuit design for wide range of applications2024
  3. 3Comparative Design of p-GaN Gate Al0.23Ga0.77N/GaN HEMTs with Al0.05Ga0.95 and In0.1Ga0.9N Back Barriers for RF Power Applications2026
  4. 4Sequential Channel Activation in Multi-Channel AlGaN/AlN/GaN HEMTs: From 4-Channel to Double-Sided 5-Channel Configurations2026
  5. 5Current collapse suppression in AlGaInN/GaN HEMTs with thin unintentionally doped GaN channel and AlN back barrier grown on single-crystal AlN substrate2024 · 6 citations