Sökning: "SiC"

Visar resultat 1 - 5 av 361 avhandlingar innehållade ordet SiC.

  1. 1. Development of SiC MESFET Based MMIC Technology

    Författare :Mattias Sudow; Chalmers University of Technology; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MIM capacitor; high power amplifier; limiter; SiC MMIC; SiC MESFET; SiC Schottky; TFR; high level mixer; spiral inductor; via-hole;

    Sammanfattning : A SiC MESFET based MMIC process has been successfully developed. This technology has its main potential in high power microwave circuits. It will offer the benefits of the high integration seen in GaAs MMIC at the same time as it will offer the benefits of the high voltage operation seen in Si LDMOS and Si BJTs. LÄS MER

  2. 2. Growth and characterization of SiC and GaN

    Författare :Rafal Ciechonski; Erik Janzén; Sebastian Lourdudoss; Linköpings universitet; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SiC; GaN; Deep level transient spectroscopy; Minority Carrier Transient Spectroscopy; Hall effect; Cathodoluminescence; Scanning electron microscopy; Atomic Force microscopy; sublimation growth; MOCVD; heterostructures; High Electron Mobility transistor; point defects; Material physics with surface physics; Materialfysik med ytfysik;

    Sammanfattning : At present, focus of the SiC crystal growth development is on improving the crystalline quality without polytype inclusions, micropipes and the occurrence of extended defects. The purity of the grown material, as well as intentional doping must be well controlled and the processes understood. LÄS MER

  3. 3. Fluorinated SiC CVD

    Författare :Pontus Stenberg; Erik Janzén; Henrik Pedersen; Angel Yanguas-Gil; Linköpings universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : For the emerging semiconductor material silicon carbide (SiC) used in high power devices, chemical vapor deposition (CVD) is the most prominent method to create the electrically active SiC epitaxial layers in the device. The process of growing such epitaxial layers is to use a hydrocarbon and silane diluted in hydrogen flow through a hot chamber where chemical reactions take place in such manner that Si and C finally deposit on the surface creating epitaxial SiC. LÄS MER

  4. 4. Fabrication and Characterization of 3C- and4H-SiC MOSFETs

    Författare :Romain Esteve; Carl-Mikael Zetterling; Tsunenobu Kimoto; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; SiC; MOSFETs; Fabrication; Characterization; Electrical engineering; electronics and photonics; Elektroteknik; elektronik och fotonik; SRA - ICT; SRA - Informations- och kommunikationsteknik;

    Sammanfattning : During the last decades, a global effort has been started towards the implementation of energy efficient electronics. Silicon carbide (SiC), a wide band-gap semiconductor is one of the potential candidates to replace the widespread silicon (Si) which enabled and dominates today’s world of electronics. LÄS MER

  5. 5. Simulation and Optimization of SiC Field Effect Transistors

    Författare :Kent Bertilsson; Hans-Erik Nilsson; Christian Brylinski; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electronics; SiC; Device simulation; RF; power; MESFET; Elektronik; Electronics; Elektronik;

    Sammanfattning : Silicon Carbide (SiC) is a wide band-gap semiconductor material with excel-lent material properties for high frequency, high power and high temperature elec-tronics. In this work different SiC field-effect transistors have been studied using theoretical methods, with the focus on both the devices and the methods used. LÄS MER