2015 · 80 citations · 9 references
EngineeringElectrical EngineeringMaterials ScienceElectronic MaterialsMicroelectronicsSemiconductor DevicesDevice ReliabilityIii-v SemiconductorsSemiconductor ReliabilityWide Band Gap SemiconductorsWide-bandgap Semiconductor DevicesWide-bandgap SemiconductorsGallium Nitride (Gan) MaterialsGallium Nitride Power DevicesLeakageLeakage Current AnalysisReliability DegradationSpace-charge-limited CurrentTrapping EffectsTraps
The role of buffer traps (identified as CN acceptors through current DLTS) in the off-state leakage and dynamic Ron of 650V rated GaN-on-Si power devices is investigated. The dynamic Ron is strongly voltage-dependent, due to the interplay between the dynamic properties of the CN traps and the presence of space-charge limited current components. This results in a complete suppression of dyn Ron degradation under HTRB conditions between 420V and 850V.
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Commercialization and reliability of 600 V GaN power switches
T. Kikkawa, Tsutomu Hosoda, K. Shono et al. · 2015 · 36 citations