Sökning: "Substrate planes"

Visar resultat 1 - 5 av 26 avhandlingar innehållade orden Substrate planes.

  1. 1. Toward Energy-efficient Physical Vapor Deposition : Routes for Replacing Substrate Heating during Magnetron Sputtering by Employing Metal Ion Irradiation

    Författare :Xiao Li; Grzegorz Greczynski; Ivan Petrov; Lars Hultman; Jyh-Wei Lee; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; PVD; Magnetron sputtering; Thin films; HiPIMS; TiAlN; Energy efficiency;

    Sammanfattning : In this Thesis, magnetron sputtering is perfected as an environmental-friendly deposition technique. I performed systematic studies of a novel approach - hybrid high-power impulse and dc magnetron co-sputtering (HiPIMS/DCMS) with metal-ion-synchronized substrate bias pulses. LÄS MER

  3. 2. Planar Quasiparticle Mixer Structures for Millimeter and Sub-Millimeter Wave Receivers

    Författare :Anders Skalare; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; SIS receiver; dipole array antenna; slot substrate mode loss; millimeter wave regime; planar antennas; sub-millimeter wave regime; superconducting mixers; slot radiation; slot lines; slot wavelengths; Voltage Matching Method;

    Sammanfattning : The paper covers various aspects of integrating planar antennas with superconducting mixers in the millimeter and sub-millimeter wave regime. The construction of an 80-100 GHz tapered slot antenna and SIS mixer chip with a minimum double side band noise temperature of 240 K is described. LÄS MER

  4. 3. Design, Fabrication and Characterization of Microwave Passive Devices on Liquid Crystal Polymer Substrates

    Författare :Xia Zhang; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; co-planar waveguide; parallel-coupled line resonator; dual-mode ring resonator; millimeter wave; ultra-wideband; Bandpass filter; liquid crystal polymer substrate; printed monopole antenna;

    Sammanfattning : For microwave/millimeter (mm)-wave systems’ applications, as frequency is moving towards higher and higher bands, materials and integration technologies are witnessing higher performance demands and constraints. The materials presently used as mm-wave substrates are either expensive or show unsatisfactory performance. LÄS MER

  5. 4. Epitaxial Lateral Overgrowth of Indium Phosphide and Its Application in Heteroepitaxy

    Författare :Yanting Sun; KTH; []
    Nyckelord :electronics; electrical; material science;

    Sammanfattning : Monolithic integration of optoelectronics on silicon is adream. This thesis deals with the studies on the heteroepitaxyof indium phosphide on silicon substrate towards making thatdream come true. Materials growth issues, characterization anddefect identification are addressed. LÄS MER

  7. 5. Thin film growth and characterization of Ti-Si-C MAX-phases

    Författare :Jens Emmerlich; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This thesis describes the growth of Ti-Si-C MAX-phases on A12O3(0001) and MgO(111) substrates with the emphasis on epitaxial Ti3SiC2 thin films by means of DC magnetron sputtering. Ti3SiC2, Ti4SiC3 as well as the two intergrown structures Ti5Si2C3 and Ti7Si2C5 were grown using sputtering from three individual elemental targets of Ti, Si, and C, respectively. LÄS MER