کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
747827 1462219 2015 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Analysis of off-state leakage mechanisms in GaN-based MIS-HEMTs: Experimental data and numerical simulation
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی برق و الکترونیک
پیش نمایش صفحه اول مقاله
Analysis of off-state leakage mechanisms in GaN-based MIS-HEMTs: Experimental data and numerical simulation
چکیده انگلیسی

This paper presents an extensive analysis of the off-state conduction mechanisms in AlGaN/GaN Meta–Insulator–Semiconductor (MIS) transistors. Based on combined bi-dimensional numerical simulation and experimental measurements, we demonstrate the following relevant results: (i) under off-state bias conditions, the drain current can show a significant increase when the drain bias is swept up to 600 V; (ii) several mechanisms can be responsible for off-state current conduction, including band-to-band tunneling and impact ionization; (iii) two-dimensional numerical simulations indicate that band-to-band tunneling plays a major role, while impact ionization does not significantly contribute to the overall leakage. Temperature-dependent I–V measurements were also carried out to identify the origin of the vertical drain-bulk leakage.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid-State Electronics - Volume 113, November 2015, Pages 9–14
نویسندگان
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