Sökning: "Ohmic"

Visar resultat 1 - 5 av 61 avhandlingar innehållade ordet Ohmic.

  1. 1. Electrical contacts, Ohmic and Schottky, to 4H-Silicon Carbide for device applications

    Detta är en avhandling från Stockholm : Elektrotekniska system

    Författare :Sang-Kwon Lee; KTH.; [2000]
    Nyckelord :silicon carbice; Ohmic; Schottky contacts; co-evaporation; current-voltage; capacitance-voltage measurement; power device; 4H-SiC; TLM;

    Sammanfattning : .... LÄS MER

  2. 2. Ohmic Contacts and Thin Film Resistors for GaN MMIC Technologies

    Detta är en avhandling från Stockholm : Elektrotekniska system

    Författare :Anna Malmros; [2011]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ohmic contact; TFR; TiN; HEMT; GaN; TaN;

    Sammanfattning : Gallium nitride (GaN) based high electron mobility transistor (HEMT) technology has attracted much attention during the last decade which has resulted in a rapid development in material quality and device performance. GaN HEMT microwave electronics are currently finding its applications in wireless communication infrastructure and radar systems. LÄS MER

  3. 3. Ohmic Contacts for High Temperature Integrated Circuits in Silicon Carbide

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Katarina Smedfors; KTH.; [2014]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Informations- och kommunikationsteknik; Information and Communication Technology;

    Sammanfattning : In electrical devices and integrated circuits, ohmic contacts are necessary and a prerequisite for the current transport over the metal-semiconductor junctions. At the same time, a desired property of the ohmic contacts is to not add resistance or in other way disturb the performance. LÄS MER

  4. 4. High power bipolar junction transistors in silicon carbide

    Detta är en avhandling från Stockholm : KTH

    Författare :Hyung-Seok Lee; KTH.; [2005]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Silicon Carbide SiC ; power device; biplar junction transistor; TiW; ohmic contact; current gain; TECHNOLOGY Electrical engineering; electronics and photonics Electronics; TEKNIKVETENSKAP Elektroteknik; elektronik och fotonik Elektronik;

    Sammanfattning : As a power device material, SiC has gained remarkable attention to its high thermal conductivity and high breakdown electric field. SiC bipolar junction transistors (BJTs) are interesting for applications as power switch for 600 V-1200 V applications. LÄS MER

  5. 5. Field Emission from Multi-walled Carbon Nanotubes and its Application in Nanoelectromechanical Systems

    Detta är en avhandling från Stockholm : KTH

    Författare :Martin Sveningsson; [2006]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; nanoelectromechanical systems; electron field emission; Fowler-Nordheim theory; Carbon nanotubes; Ohmic heating;

    Sammanfattning : Films of aligned multi-walled carbon nanotubes (MWCNTs) areinteresting for applications such as cold emission cathodes in flat-panel display technology and in lighting elements. MWCNTs are, besides this, good candidates to be used innanoelectromechanical systems (NEMS). LÄS MER