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相关论文: Design of a $\beta$-Ga$_2$O$_3$ Schottky Barrier D…

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${\beta}$-Ga${_2}$O${_3}$ based semiconductor devices are expected to have significantly improved high-power and high-temperature performance due to its ultra-wide bandgap of close to 5 eV. However, the high-temperature operation of these…

We report over 3 kV breakdown voltage and ultra-low leakage (011) \b{eta}-Ga2O3 power devices utilizing Schottky barrier engineering and high-permittivity (\k{appa}) dielectric (ZrO2) field plate. The (011) orientation of \b{eta}-Ga2O3…

系统与控制 · 电气工程与系统科学 2025-10-30 Emerson J. Hollar , Esmat Farzana

This letter reports the first demonstration of AlN Schottky diodes on bulk AlN substrates by metalorganic chemical vapor phase deposition (MOCVD) with breakdown voltages exceeding 3 kV. The devices exhibited good rectifying characteristics…

应用物理 · 物理学 2023-11-10 Dinusha Herath Mudiyanselage , Dawei Wang , Ziyi He , Bingcheng Da , Houqiang Fu

A systematic investigation of the electrical characteristics of \b{eta}-Ga2O3 Schottky barrier diodes (SBDs) has been conducted under high-dose 60Co gamma radiation, with total cumulative doses reaching up to 5 Mrad (Si). Initial exposure…

应用物理 · 物理学 2025-10-21 Saleh Ahmed Khan , Sudipto Saha , Uttam Singisetti , A F M Anhar Uddin Bhuiyan

$\beta$-Ga$_2$O$_3$ trench Schottky barrier diodes fabricated through a Gallium atomic beam etching technique, with excellent field strength and power device figure of merit, are demonstrated. Trench formation was accomplished by a…

Ga2O3 Schottky barrier diodes featuring a field plate and a composite SiO2/SiNx dielectric layer beneath the field plate were fabricated, achieving a breakdown voltage of 2.4 kV at room temperature. Electrical performance and degradation…

In this paper, we report enhanced breakdown characteristics of Pt/BaTiO3/Al0.58Ga0.42N lateral heterojunction diodes compared to Pt/Al0.58Ga0.42N Schottky diodes. BaTiO3, an extreme dielectric constant material, has been used, in this…

This work presents the design of beta-Ga2O3 schottky barrier diode using high-k dielectric superjunction to significantly enhance the breakdown voltage vs on-resistance trade-off beyond its already high unipolar figure of merit. The device…

应用物理 · 物理学 2020-08-04 Saurav Roy , Arkka Bhattacharyya , Sriram Krishnamoorthy

In this letter, we demonstrate high-performance lateral AlGaN/GaN Schottky barrier diodes (SBD) on Si substrate with a recessed-anode structure. The optimized rapid etch process provides results in improving etching quality with a 0.26-nm…

This study demonstrates a substantial enhancement of breakdown voltage in $\beta$-Ga$_2$O$_3$ Schottky diodes through an approach that combines fast neutron irradiation with controlled post-irradiation electro-thermal annealing. Devices…

This work presents electrothermal co-design of vertical \b{eta}-Ga2O3 Schottky barrier diodes (SBDs) to enhance both heat dissipation and high field management in high-power applications. Here, we demonstrate device-level thermal management…

This work demonstrates quasi-vertical beta-Ga2O3 Schottky barrier diodes (SBDs) fabricated on c-plane sapphire using an all-LPCVD, plasma-free process integrating epitaxial growth of high-quality beta-Ga2O3 and in-situ Ga-assisted etching.…

应用物理 · 物理学 2025-10-21 Saleh Ahmed Khan , Ahmed Ibreljic , A F M Anhar Uddin Bhuiyan

We report on the growth optimization of intentionally low-doped ($10^{15}$ $cm^{-3}$) high-quality $\beta-Ga_2O_3$ drift layers up to 10 $\mu m$ thick via MOCVD and the fabrication of kilovolt-class field plated Schottky barrier diodes on…

In this paper, a transient delayed rising and fall time of $\beta$-Ga$_2$O$_3$ NMs Schottky barrier diodes (SBDs) formed on four different substrates (diamond, Si, sapphire, and polyimide) were measured using a sub-micron second resolution…

应用物理 · 物理学 2022-07-27 Junyu Lai , Jung-Hun Seo

In this letter, we present a kilovolt-class \b{eta}-Ga2O3 vertical trench Schottky barrier diode with a field plate incorporating narrow fin width (Wfin) structures of sub-micron dimensions. We used a nanolaminate dielectric comprising a…

应用物理 · 物理学 2025-09-29 Chinmoy Nath Saha , Saurav Roy , Yizheng Liu , Carl Peterson , Sriram Krishnamoorthy

This paper presents vertical (001) oriented $\beta$-Ga$_2$O$_3$ field plated (FP) Schottky barrier diode (SBD) with a novel extreme permittivity dielectric field oxide. A thin drift layer of 1.7 $\mu m$ was used to enable a punch-through…

A comprehensive current-voltage (I-V) characterization is performed for three different Schottky contacts; Pt, Ni and Ti, to unintentionally doped (UID) \{beta}-(Al0.19Ga0.81)2O3 grown by molecular beam epitaxy (MBE) on \{beta}-Ga2O3 for…

应用物理 · 物理学 2018-03-21 Abhishek Vaidya , K. Sasaki , A. Kuramata , T. Masui , Uttam Singisetti

The electrical characteristics and microstructures of $\beta$-Ga$_2$O$_3$ Schottky barrier diode (SBD) devices irradiated with swift heavy ions (2096 MeV Ta ions) have been studied. It was found that $\beta$-Ga$_2$O$_3$ SBD devices showed…

In this letter, we demonstrate a lateral AlGaN/GaN Schottky barrier diode (SBD) on sapphire substrate with low turn-on voltage (Von) and high breakdown voltage (VBK). By using a double barrier anode (DBA) structure formed by the mixture of…

GaN-based lateral Schottky diodes (SBDs) have attracted great attention for high-power applications due to its combined high electron mobility and large critical breakdown field. However, the breakdown voltage (BV) of the SBDs are far from…

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