Search for dissertations about: "high density"

Showing result 11 - 15 of 2386 swedish dissertations containing the words high density.

  2. 11. Towards Low-Voltage, High-Current : A pioneering drive concept for battery electric vehicles

    Author : Stefan Haller; Kent Bertilsson; Bengt Oelmann; Peng Cheng; Dieter Gerling; Mittuniversitetet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; low voltage; high current; EV; BEV; electrical machine; power electronics; MOSFET;

    Abstract : The first electric low-voltage vehicles were constructed in the mid-19th century, but by the early 20th century they were progressively replacedby successors with internal combustion engines. As the consequences ofusing fossil fuels are better understood, our society is now transitioning back. READ MORE

  4. 12. Vertical Nanowire High-Frequency Transistors

    Author : Sofia Johansson; NanoLund: Centre for Nanoscience; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; nanowires; III-V semiconductors; metal-oxide-semiconductor field-effect transistors; border traps; high-k;

    Abstract : This thesis explores a novel transistor technology based on vertical InAs nanowires, which could be considered both for low-power high-frequency analog applications and for replacing Si CMOS in the continued scaling of digital electronics. The potential of this device - the vertical InAs nanowire MOSFET – lies in the combination of the outstanding transport properties of InAs and the improved electrostatic control of the gate-all-around geometry. READ MORE

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

    Author : Christian Johansson; Hjalmar Hesselbom; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; 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

  6. 14. Ge/high-k Gates for Monolithic 3D Integration

    Author : Laura Zurauskaite; Per-Erik Hellström; Mikael Östling; Francois Andrieu; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Germanium; high-k; monolithic; 3D; germanium on insulator; GOI; germanium oxide; GeOx; Si-cap; Si-passivation; interface state density; Dit; low temperature; MOSFET; germanium; hög-permittivitetsdielektrika; monolitisk; 3D; germaniumpå- isolator; GOI; germaniumoxid; GeOx; kiselskikt; kiselpassivering; gränssnittsfälltäthet; Dit; låg temperatur; MOSFET; Informations- och kommunikationsteknik; Information and Communication Technology;

    Abstract : Continuous scaling of transistor dimensions has been in the heart of semiconductorindustry for many years. Recently the scaling has been enabled by various performance boosters which resulted in increased processing complexity and cost, forcing the chip manufacturers to look for some alternative solutions. READ MORE

  7. 15. High density ferroelectric Na0.5K0.5NbO3 ceramics : preparation and applications

    Author : Johanna Andreasson; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Engineering Materials; Materialteknik;

    Abstract : This thesis describes the production of high density ferroelectric Na0.5K0.5NbO3-ceramics (NKN). The main steps in the production are milling, calcination, pressing and sintering. READ MORE