Sökning: "polysilicon emitter"

Hittade 4 avhandlingar innehållade orden polysilicon emitter.

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

    Författare :Martin Sandén; KTH; []
    Nyckelord :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;

    Sammanfattning : .... LÄS MER

  3. 2. Process integration issues for high-performance bipolar technology

    Författare :Tord E. Karlin; KTH; []
    Nyckelord :;

    Sammanfattning : The work in this thesis has been focused on processintegration issues for high-performance bipolar technologyincluding experimental work on self-aligned silicides,ion-implanted andin situdoped polysilicon emitters, strained silicongermanium for heterojunction bipolar transistors and physicalprocess and device simulation.Key issues for the self-aligned silicidation of small devicefeatures such as the influence of dopants, silicon morphologyand line width on titanium disilicide formation, phasetransformation and temperature stability, have been addressed. LÄS MER

  4. 3. Device design and process integration for SiGeC and Si/SOI bipolar transistors

    Författare :Erik Haralson; KTH; []
    Nyckelord :Silicon-Germanium SiGe ; SiGeC; heterojunction bipolar transistor HBT ; nickel silicide; selectively implanted collector SIC ; device simulation; SiGeC layer staiblity; high resolution x-ray diffraction HRXRD ; silicon-on.insulator SOI ; self-heating;

    Sammanfattning : SiGe is a significant enabling technology for therealization of integrated circuits used in high performanceoptical networks and radio frequency applications. In order tocontinue to fulfill the demands for these applications, newmaterials and device structures are needed. LÄS MER

  5. 4. The transistor, with emphasis on its use for radio frequency telecommunication

    Författare :Ted Johansson; Dag Sigurd; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : This thesis is about transistors, integrated circuits and techniques to fabricate electronic devices in semiconductor materials. The most important application area for the transistors studied in the thesis is radio frequency telecommunication. LÄS MER