Search for dissertations about: "c-v"

Showing result 21 - 25 of 33 swedish dissertations containing the word c-v.

  2. 21. Heterostructure Barrier Varactors for High Efficiency Frequency Multipliers

    Author : Lars Dillner; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; frequency multiplier; Heterostructure Barrier Varactor HBV ; millimeter wave; submillimeter wave; power source;

    Abstract : This thesis describes the Heterostructure Barrier Varactor (HBV) and its application in frequency multipliers. Different HBV materials, fabrication processes, and device models are presented. The aim of this work is to improve the efficiency of HBV frequency multipliers. READ MORE

  4. 22. Metal Gate Technology for Advanced CMOS Devices

    Author : Gustaf Sjöblom; Jörgen Olsson; Stefan de Gendt; Uppsala universitet; []
    Keywords : Electronics; metal gate; high-k dielectrics; titanium nitride; zirconium nitride; MOSFET; thin film; work function; XPS; Elektronik;

    Abstract : The development and implementation of a metal gate technology (alloy, compound, or silicide) into metal-oxide-semiconductor field effect transistors (MOSFETs) is necessary to extend the life of planar CMOS devices and enable further downscaling. This thesis examines possible metal gate materials for improving the performance of the gate stack and discusses process integration as well as improved electrical and physical measurement methodologies, tested on capacitor structures and transistors. READ MORE

  5. 23. Galanin receptor subtypes in rodent models of mood disorders

    Author : Tara Wardi-Le Maitre; Karolinska Institutet; Karolinska Institutet; []
    Keywords : 5-HT1A receptor; galanin; galanin receptor 2 overexpressing mice; locus coeruleus; dorsal raphe; depression-like behavior; forced swim test;

    Abstract : Major depressive disorder (MDD) is a serious mental illness, with a complex etiology. It is a multifactorial disorder caused by a combination of genetic, environmental and epigenetic factors. Exposure to stressful life events seems to be a common, contributing cause of morbidity. READ MORE

  6. 24. Metastable ScAlN and YAlN Thin Films Grown by Reactive Magnetron Sputter Epitaxy

    Author : Agnė Žukauskaitė; Jens Birch; Lars Hultman; Michelle Moram; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Metastable ScxAl1-xN and YxAl1-xN thin films were deposited in an ultra high vacuum system using reactive magnetron sputter epitaxy from elemental Al, Sc, and Y targets in Ar/N2 gas mixture. Their structural, electrical, optical, mechanical, and piezoelectrical properties were investigated by using the transmission electron microscopy, x-ray diffraction, spectroscopic ellipsometry, I-V and C-V measurements, nanoindentation, and two different techniques for piezoelectric characterization: piezoresponse force microscopy and double beam interferometry. READ MORE

  7. 25. Investigation of Novel Metal Gate and High-κ Dielectric Materials for CMOS Technologies

    Author : Jörgen Westlinder; Jörgen Olsson; Stefan Bengtsson; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electronics; metal gate; high-κ dielectics; titanium nitride; zirconium nitride; MOSFET; thin film; tantalum oxide; aluminum nitride; Elektronik; Electronics; Elektronik;

    Abstract : The demands for faster, smaller, and less expensive electronic equipments are basically the driving forces for improving the speed and increasing the packing density of microelectronic components. Down-scaling of the devices is the principal method to realize these requests. READ MORE