Search for dissertations about: "power semiconductor devices"
Showing result 21 - 25 of 170 swedish dissertations containing the words power semiconductor devices.
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21. Simulation and Characterization of Silicon Carbide Power Bipolar Junction Transistors
Abstract : The superior characteristics of silicon carbide, compared with silicon, have suggested considering this material for the next generation of power semiconductor devices. Among the different power switches, the bipolar junction transistor (BJT) can provide a very low forward voltage drop, a high current capability and a fast switching speed. READ MORE
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22. Epitaxial Growth and Characterization of SiC for High Power Devices
Abstract : Silicon Carbide (SiC) is a semiconductor with a set of superior properties, including wide bandgap, high thermal conductivity, high critical electric field and high electron mobility. This makes it an excellent material for unipolar and bipolar electronic device applications that can operate under high temperature and high power conditions. READ MORE
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23. Epitaxial strategies for defect reduction in GaN for vertical power devices
Abstract : Group-III nitride materials, gallium nitride (GaN), aluminum nitride (AlN) and indium nitride (InN) have direct band gaps with band gap energies ranging from the infrared (InN) to the ultraviolet (GaN) and to the deep ultraviolet (AlN) wavelengths and covering the entire spectral range from 0.7 eV to 6.2 eV upon alloying. READ MORE
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24. InGaAs Nanowire and Quantum Well Devices
Abstract : To fulfill the increasing demand for high-speed electronics used for computation or communication is one everlasting challenge for the semiconductor industry. Emerging fields such as quantum computation also has a need for circuits operating at cryogenic temperatures. READ MORE
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25. Cascaded Converters with Gate-Commutated Thyristors : Experimental Verification and Auxiliary Power Supply
Abstract : This thesis describes an effort to investigate the use of gate-commutated thyristors(GCTs) in cascaded converters. Cascaded converters, such as modularmultilevel converters (M2Cs) and cascaded H-bridge converters (CHBs), haveproved to be especially suitable in high-voltage, high-power applications. READ MORE