Sökning: "Gallium Arsenide"

Visar resultat 1 - 5 av 33 avhandlingar innehållade orden Gallium Arsenide.

  1. 1. Gallium arsenide micromechanics

    Författare :Klas Hjort; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER

  3. 2. Ensemble and Individual III-V Semiconductor Nanopillars: Optical Properties and Applications

    Författare :Reza Sanatinia; Anand Srinivasan; Andrea Fiore; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; nanopillar; nanowires; nanophotonics; nanofabrication; III-V semiconductors; photovoltaics; second-harmonic generation; top-down approach; colloidal lithography; antireflection; modal dispersion; polarization; nanowaveguide; indium phosphide; gallium arsenide; gallium phosphide; Physics; Fysik;

    Sammanfattning : Optical properties of semiconductor nanowires (NWs)/nanopillars (NPs), as individual or ensemble, have attracted significant research interest in recent years. Their potential applications range from solid-state lighting, photovoltaics, lasing and nonlinear optics to sensing and life sciences. LÄS MER

  4. 3. Metal and Semiconductor Nanocrystals for Quantum Devices

    Författare :Martin Magnusson; Fasta tillståndets fysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; thermal and mechanical properties; quantum devices; nanocrystals; nanoparticles; gold; aerosol technology; tungsten; gallium arsenide; indium phosphide; semiconductors; thermal charging; nanoxerography; single electron transistors; nanowhiskers; Physics; Fysik; Semiconductory physics; Condensed matter:stucture; Halvledarfysik; crystallography; phase equilibria; Kondenserade materiens egenskaper:struktur; egenskaper termiska och mekaniska ; kristallografi; fasjämvikt; Fysicumarkivet A:2001:Magnusson;

    Sammanfattning : Aerosol technology was used to develop new methods for fabrication of size-selected, nanometer-sized particles of metals and semiconductors. Such particles were used to realize different types of quantum devices and nanometer-sized structures. LÄS MER

  5. 4. Flip chip for high frequency applications : materials aspects

    Författare :Katarina Boustedt; Dag Stranneby; Rao Tummala; Örebro universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Flip chip; underfill; bumping; microwave; gallium arsenide; high frequency; thermocompression; soldering; stud bumps; coplanar waveguide; Electrical engineering; electronics and photonics; Elektroteknik; elektronik och fotonik; Elektronik; Electronics;

    Sammanfattning : Flip chip has since decades been the primary choice for chip interconnect for high performance circuits. Over the last few years, interest from the microwave arena has increased, and at this point in time microwave flip chip is a possible option for volume production. LÄS MER

  7. 5. Modelling of Terahertz Planar Schottky Diodes

    Författare :Aik-Yean Tang; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; S-parameter extraction; Electro-thermal; Schottky diodes; Skin effect; Electromagnetic; Frequency multipliers; High-power frequency multiplier; Current crowding; Proximity effect; Submillimetre wave generation and detection; Geometric modelling; Gallium Arsenide;

    Sammanfattning : This thesis deals with the modelling of THz planar Schottky diodes, focusing on analyses of the geometry- dependent parasitics and the diode chip thermal management. Moving towards higher operating frequencies, the electromagnetic couplings pose significant limitations on the diode performance. LÄS MER