Analytical modeling of I–V characteristics using 2D Poisson equations in AlN/β-Ga2O3 HEMT

Document Type

Article

Publication Date

7-1-2022

Abstract

In this paper, physics-based analytical models using two-dimensional (2D) Poisson equations for surface potential, channel potential, electric field, and drain current in AlN/β-Ga2O3 high electron mobility transistor (HEMT) is presented. The analytical expression of different quantities is achieved based on full depletion approximation of the AlN barrier layer and polarization charge induced unified two-dimensional electron gas (2DEG) charge density model. For the validation of the developed model, results are compared with 2D numerical simulation results, and a good consistency is found between the two. The drain current model is also validated with experimental results of a similar dimension device. The developed model can be a good reference for different β-Ga2O3-based HEMTs.

Identifier

85126614185 (Scopus)

Publication Title

Materials Science in Semiconductor Processing

External Full Text Location

https://doi.org/10.1016/j.mssp.2022.106627

ISSN

13698001

Volume

145

Grant

MTR/2021/000370

Fund Ref

Department of Science and Technology, Ministry of Science and Technology, India

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