Results 21 to 30 of about 181,039 (244)

High Single-Event Burnout Resistance 4H-SiC Junction Barrier Schottky Diode

open access: yesIEEE Journal of the Electron Devices Society, 2021
This paper presents a single-event burnout (SEB) resistance method for 4H-SiC Junction Barrier Schottky Diode (JBS) under high bias voltage and linear energy transfer (LET) conditions.
Mao-Bin Li   +5 more
doaj   +1 more source

Electrical Conductivity Improvement of Point Defects in 4H-SiC

open access: yes, 2023
Owing to its high melting temperature, the 4H-SiC substrate exhibits numerous defects that are difficult to remove, hindering the development of large-scale, high electrical conductivity 4H-SiC substrates. This study constructs and analyzes atomic models
Chih Shan Tan (5690210), Chih Shan Tan
core   +1 more source

Relationship between electrical properties and interface structures of SiO2/4H-SiC prepared by dry and wet oxidation

open access: yesAIP Advances, 2019
We have investigated the relationship between the electrical properties and interfacial atomic structure of SiO2/4H-SiC interfaces, prepared by dry and wet thermal oxidation procedures with 4H-SiC (0001) and 4H-SiC (000-1) substrates, using extended x ...
Efi Dwi Indari   +4 more
doaj   +1 more source

Influences of Nonaqueous Slurry Components on Polishing 4H-SiC Substrate with a Fixed Abrasive Pad

open access: yesCrystals, 2023
4H-SiC wafers are more likely to sustain a lower material removal rate (MRR) and severe subsurface damage in conventional chemical mechanical polishing (CMP) methods.
Jiyuan Zhong   +6 more
doaj   +1 more source

Effect of hexagonality on the pressure-dependent lattice dynamics of 4H-SiC

open access: yesNew Journal of Physics, 2022
The pressure-dependent lattice dynamics of 4H-SiC is investigated using diamond anvil cell, and compared with those of 3C- and 6H-SiC. It is found that both the zone-center longitudinal optical (LO) and transverse optical (TO) modes shift to higher ...
Junran Zhang   +9 more
doaj   +1 more source

In situ high-pressure spectroscopic studies using moissanite (4H-SiC) anvils

open access: yesAIP Advances, 2018
We examined the Raman scattering and IR absorption spectroscopy of 4H-SiC and its performance as an anvil material for high-pressure UV-visible absorption spectroscopic measurements.
Jinbo Zhang   +7 more
doaj   +1 more source

Leakage Current Behavior in HfO2/SiO2/Al2O3 Stacked Dielectric on 4H-SiC Substrate

open access: yesIEEE Journal of the Electron Devices Society, 2023
In this study, we investigate the deposition of high-k dielectric materials, namely Al2O3 and HfO2, using atomic layer deposition for 4H-SiC metal-oxide-semiconductor applications.
Hao Huang   +3 more
doaj   +1 more source

Highly sensitive p-type 4H-SiC Van der Pauw sensor [PDF]

open access: yes, 2018
This paper presents for the first time a p-type 4H silicon carbide (4H-SiC) van der Pauw strain sensor by utilizing the strain induced effect in four-terminal devices.
Nguyen, Nam-Trung   +23 more
core   +1 more source

Spectroscopy studies of 4H-SiC [PDF]

open access: yesMaterials Research, 2003
Calculations of the total dielectric functions and the optical bandgap energy (OBGE) of 4HSiC were performed by the full-potential linear muffin-tin-orbital method. The results are compared to spectroscopic ellipsometry dielectric measurements agreeing closely over in a wide range of energies.
Oliveira, A.C. de   +12 more
openaire   +5 more sources

Isotropic piezoresistance of p-type 4H-SiC in (0001) plane [PDF]

open access: yes, 2018
In this work, the isotropic piezoresistance in the (0001) plane of p-type 4H-SiC was discovered by means of the hole energy shift calculation and the coordinate transformation. These results were also confirmed by the measurement of the piezoresistance
Nguyen, Nam-Trung   +19 more
core   +1 more source

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