Search for dissertations about: "heterojunction bipolar transistor"

Showing result 1 - 5 of 19 swedish dissertations containing the words heterojunction bipolar transistor.

  2. 1. SiGeC Heterojunction Bipolar Transistors

    Author : Erdal Suvar; KTH; []
    Keywords : Silicon-Germanium-Carbon SiGeC ; Heterojunction bipolar transistor HBT ; chemical vapor deposition CVD ; selective epitaxy; non-selective epitaxy; collector design; high-frequency measurement; dopant segregation; thermal stability;

    Abstract : Heterojunction bipolar transistors (HBT) based on SiGeC havebeen investigated. Two high-frequency architectures have beendesigned, fabricated and characterized. Different collectordesigns were applied either by using selective epitaxial growthdoped with phosphorous or by non-selective epitaxial growthdoped with arsenic. READ MORE

  4. 2. Processing and characterization of GaN/SiC heterojunctions and SiC bipolar transistors

    Author : Erik Danielsson; KTH; []
    Keywords : silicon carbide; gallium nitride; device simulation; bipolar junction transistor; heterojunction; heterojunction bipolar transistor; current-voltage measurement; capacitance-voltage measurement; self-heating;

    Abstract : Silicon Carbide (SiC) and Gallium Nitride (GaN) are bothwide bandgap semiconductors that have been suggested for highpower, high voltage, and high temperature applications. Themost investigated SiC devices so far are the Schottky diode,PiN diode and the field effect transistor. READ MORE

  5. 3. Silicon Germanium heterojunction bipolar transistors : Large-signal modeling and low-frequency noise characterization aspects

    Author : Staffan Bruce; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materials science; Silicon Germanium; SiGe; Heterojunction Bipolar Transistor; HBT; Large-signal modeling; thermal time constant; low-frequency noise: coherence; transimpedance amplifier; Materialvetenskap; Materials science; Teknisk materialvetenskap; Elektronik; Electronics;

    Abstract : In this thesis, aspects of the Silicon Germanium (SiGe) Heterojunction Bipolar Transistor (HBT) are addressed. A physics-based electrical large-signal model including thermal dependence has been developed and is implemented using a commercially available simulator package. READ MORE

  6. 4. High Frequency Characterization and Modeling of SiGe Heterojunction Bipolar Transistors

    Author : B. Gunnar Malm; KTH; []
    Keywords : Silicon-Germanium SiGe ; heterojunction bipolar transistor HBT ; low-frequency noise; high-frequency noise; harmonic distortion; linearity; device simulation; collector profile; epitaxial base integration; radio frequency RF ; radio frequency inte;

    Abstract : .... READ MORE

  7. 5. Low-Frequency Noise in Si-Based High-Speed Bipolar Transistors

    Author : Martin Sandén; KTH; []
    Keywords : bipolar junction transistor BJT ; heterojunction bipolar transistor HBT ; silicon-germanium SiGe ; polysilicon emitter; high-frequency measurement; low-frequency noise; noise modeling; hydrogen passivation; voltage controlled oscillator VCO ; pha;

    Abstract : .... READ MORE