Search results for "SiC MOSFET"

showing 2 items of 2 documents

Efficiency comparison between SiC- and Si-based active neutral-point clamped converters

2015

This paper presents an efficiency comparison between silicon-carbide technology and silicon technology. In order to achieve this, the efficiency of an active neutral-point clamped converter built up with silicon carbide power-devices is compared with the efficiency of an active neutral-point clamped converter built up with silicon power-devices, under a particular operating mode and a particular selection of devices. Firstly, overall losses of both converters are estimated. Then, experimental tests are carried out to measure their overall losses and efficiency. Finally, experimental results are compared with the estimations to support the analysis. The efficiency of the SiC converter is hig…

Materials scienceSiliconchemistry.chemical_elementTransistorschemistry.chemical_compoundMOSFETSilicon carbideElectronic engineeringMetal oxide semiconductor field-effect transistorsSiC MOSFETPoint (geometry)Metal oxide semiconductorsTransistors MOSFETbusiness.industryWide-bandgap semiconductor:Enginyeria electrònica [Àrees temàtiques de la UPC]ConvertersMetall-òxid-semiconductorschemistryefficiencyEfficiency comparisonactive neutral-point clampedOptoelectronicswide band gapbusinessSiC technologymultilevel conversion
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Heavy-ion induced single event effects and latent damages in SiC power MOSFETs

2022

The advantages of silicon carbide (SiC) power MOSFETs make this technology attractive for space, avionics and high-energy accelerator applications. However, the current commercial technologies are still susceptible to Single Event Effects (SEEs) and latent damages induced by the radiation environment. Two types of latent damage were experimentally observed in commercial SiC power MOSFETs exposed to heavy-ions. One is observed at bias voltages just below the degradation onset and it involves the gate oxide. The other damage type is observed at bias voltages below the Single Event Burnout (SEB) limit, and it is attributed to alterations of the SiC crystal-lattice. Focused ion beam (FIB) and s…

Materials scienceScanning electron microscopeRadiationFocused ion beamelektroniikkakomponentitIonSEEschemistry.chemical_compoundstomatognathic systempuolijohteetGate oxideSilicon carbideSiC MOSFETsHeavy-ionDetectors and Experimental TechniquesElectrical and Electronic EngineeringPower MOSFETSafety Risk Reliability and Qualitybusiness.industryionisoiva säteilyCondensed Matter PhysicsLatent damageAtomic and Molecular Physics and OpticsSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialssäteilyfysiikkachemistrytransistoritOptoelectronicsSiC MOSFETs; Heavy-ion; Latent damage; SEEsbusinessVoltageMicroelectronics Reliability
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