简介：今年10月份的LED杂志（LEDmagazine）刊登了三种MR16产品之间的性能比较，它们分别是：卤钨灯、SiC基板上生长的GaN（CREE制造）和在GaN上生长GaN的同质氮化镓（rhSORRA公司制造），见表1。

简介：Thesteadyanddynamicpropertiesarecomparativelyinvestigatedforthen-dopedandnon-dopedInGaNLEDs.Thesimulatedresultsshowthatthen-dopedLEDexhibitsthesuperiorluminescenceandmodulationperformance,whichismainlyattributedtothehighercarrierradiativerateofn-dopedLED.Theresultscanexplainthereportedexperimentalresultsperfectly.

简介：Singlecrystal(100)InPsamplesand(0001)GaNepitaxiallayerswereirradiatedattheHeavyIonResearchFacilityinLanzhou(HIRFL)with86Krionsatroomtemperature.Theionfluencewasvariedfrom5×1010to1×1012cm?2.Additionally,thinaluminumfoilswithdifferentthickness(sometensofmicrometers)wereplacedinfrontofsomesamplestodeceleratetheSHI's.Ionbeamscanningwasusedtoirradiatethewholesamplesurfaceinauniformwayandmaintainednormalincidence.Topreventsampleheatingduringhigh-energyirradiation,thefluxwaskeptconstantbelow1.3×1010cm?2s?1.ThemodificationsofthesampleswereinvestigatedbyXRD.

简介：<正>近日,推动高能效创新的安森美半导体(ONSemiconductor)与功率转换专家Transphorm宣布已建立了新的合作关系,共同开发及共同推广基于氮化镓(GaN)的产品和电源系统方案,用于工业、计算机、电信、LED照明及网络领域的各种高压应用。该策略合作充分发挥两家公司固有的实力。Transphorm是公认的第一家将600伏(V)GaN硅晶体管量产通过授证的公司,并在这先进技术有无与伦比

简介：<正>"现在,业界对GaN功率元件的期待已达到最高峰。实际上这的确是一种非常有前景的材料。但其中还有很多未知的部分,采用还为时尚早",在与汽车展会"AUTOMOTIVEWORLD2014"同时举办的研讨会上,英飞凌科技负责汽车用高压功率半导体和驱动IC等业务的电动动力传动系统部高级总监Mark-

简介：Inthispaper,theconductionband-edgenon-parabolicity(NP)andthecircularcross-sectionradiuseffectsonhydrogenicshallow-donorimpurityground-statebindingenergyinzinc-blende(ZB)InGaN/GaNcylindricalQWWsarereported.Thefinitepotentialbarrierbetween(In,Ga)NwellandGaNenvironmentisconsidered.Twomodelsoftheconductionband-edgenon-parabolicityaretakingintoaccount.Thevariationalapproachisusedwithintheframeworkofsinglebandeffective-massapproximationwithone-parametric1S-hydrogenictrialwave-function.ItisfoundthatNPeffectismorepronouncedinthewireofradiusequaltoeffectiveBohrradiusthaninlargeandnarrowwires.Moreover,thebindingenergypeakshiftstonarrowwireunderNPeffect.Agoodagreementisshowncomparedtothefindingsresults.

简介：文中对宜普电源转换公司（EPC）Buck转换器EPC9107进行参数测试与分析。测试结果表明,当EPC9107电源模块工作于开关频率1000kHz、宽幅输入电压12-28V时,输出电压恒定3.3V,输出电流约为0-16A,效率最高约为96.1%,功率密度约为14W·cm^-3,转换时间小于4ns,具有良好的抗干扰度和瞬态响应,纹波小于20mV。该模块的整体性能均优于当前硅基DC/DC电源模块。

简介：Wetheoreticallypresenttheintrinsiclimitstoelectronmobilityinthemodulation-dopedAlGaN/GaNtwo-dimensionalelectrongas(2DEG)duetoeffectsincludingacousticdeformationpotential(DP)scattering,piezoelectricscattering(PE),andpolar-opticphononscattering(POP).WefindthatDEandPEarethemoresignificantlimitingfactorsatintermediatetemperaturesof40Kto250K,whilePOPbecomesdominantasroomtemperatureisapproached.Detailednumericalresultsarepresentedforthechangeofelectronmobilitywithrespecttotemperatureandcarrierdensity.Weconcludethatthesethreetypesofphononscattering,whicharegenerallydeterminedbythematerialpropertiesbutnotthetechnicalprocessing,arehardlimitstothe2DEGmobility.