Search for dissertations about: "High frequency"

Showing result 1 - 5 of 2435 swedish dissertations containing the words High frequency.

  1. 1. Graphene field-effect transistors for high frequency applications

    Author : Muhammad Asad; Chalmers University of Technology; []
    Keywords : TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ENGINEERING AND TECHNOLOGY; ENGINEERING AND TECHNOLOGY; high frequency; Graphene; transit frequency; transconductance; maximum frequency of oscillation; contact resistance; microwave electronics; field-effect transistors;

    Abstract : Rapid development of wireless and internet communications requires development of new generation high frequency electronics based on new device concepts and new materials. The very high intrinsic velocity of charge carriers in graphene makes it promising new channel material for high frequency electronics. READ MORE

  2. 2. High frequency electronic packaging : SBU-materials, material characterization, simulation and processing

    Author : Christian Johansson; Hjalmar Hesselbom; Linköpings universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; dielectric loss; high frequency electrical characterization; microwave circuits; multilayer thin film technology; ORMOCER; permittivity; sequential build up; silicone elastomer;

    Abstract : Electronic packaging continues to move towards improved performance and lower cost. Requirements of higher performance, reduced size, weight and cost of both High Density Interconnects (HDI) and high frequency (HF) devices has led to the search for new: materials, material combinations, methods, processes and production equipment. READ MORE

  3. 3. On high-frequency soft-switching DC-converters for high-voltage applications

    Author : Per Ranstad; KTH; []
    Keywords : soft-switching; dc-converter; high-frequency; high-voltage;

    Abstract : .... READ MORE

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

    Author : Katarina Boustedt; Dag Stranneby; Rao Tummala; Örebro universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; 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;

    Abstract : 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. READ MORE

  5. 5. 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