Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 73 for “"Sion"”.
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Sputtered silicon oxynitride for microphotonics : a materials study
Silicon oxynitride (SiON) is an ideal waveguide material because the SiON materials system provides substantial flexibility in composition and refractive index. SiON can be varied in index from that of silicon dioxide (n=1.46) to that of silicon-rich silicon nitride (n-2.3). This flexibility in …
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Polymer-Derived Ceramic Coatings for Stress and Corrosion Resistance in Stainless Steel: Optimization of Thermal Stability and Structural Integrity
… ceramic (PDC) coatings, particularly SiON and SiOCN, aimed at enhancing corrosion resistance, thermal stability, and structural integrity of stainless steel in harsh environments. Using perhydropolysilazane (PHPS) and its derivatives, various coating compositions and pyrolysis …
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Selected topics on advanced electron devices and their circuit applications
… Instability (NBTI) in p-MOSFETs with ultra-thin SiON gate dielectric is reported. By using the fast pulsed method, a fast Dynamic NBTI (DNBTI) component is distinguished from the conventional slow one for the first time. Evidence has been shown that this component is due to trapping and …
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Residual Stress Effects on Power Slump and Wafer Breakage in GaAs MESFETs
… also found to contain less residual stress than SiON passivated wafers, which, in turn, are found to have less stress than SiN passivated wafers. Topographic imaging suggests that SiN passivated wafers have larger flaws than SiON passivated wafers, and that the distribution of flaw size among SiN …
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Trapping of hydrogen in Hf-based high κ dielectric thin films for advanced CMOS applications.
… under serious consideration to replace SiO2 and SiON in semiconductor industry. Hafnium-based dielectrics such as hafnium oxides, oxynitrides and Hf-based silicates/nitrided silicates are emerging as some of the most promising alternatives to SiO2/SiON gate dielectrics in complementary metal …
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Probing technique for energy distribution of positive charges in gate dielectrics and its application to lifetime prediction
The continuous reduction of the dimensions of CMOS devices has increased the negative bias temperature instability (NBTI) of pMOSFETs to such a level that it is limiting their lifetime. This increase of NBTI is caused mainly by three factors: an increase of nitrogen concentration in gate …
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Addressable plasma photonic crystals
… speeds which, in turn, allows for the transmis- sion characteristics to be altered rapidly. This thesis will describe the theory and characteristics of photonic crystals, and the design and performance of photonic crystals based on arrays of microplasma jets will be discussed.
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The von Neumann Minimax Theorem and its relatives and a study of externality in on-line auctions
… minimax theorem as formulated by Nikaid6 and Sion. It also discusses its relationships with fundamental theorems of convex analysis. The second part is about externality in sponsored search auctions. It shows that in these auctions, advertisers have externality effects on each other which …
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Scaling and process effect on electromigration reliability for Cu/low k interconnects
… scaling resulted in the need of a novel diffusion barrier, which should be uniform and thin. The objective of this dissertation is to investigate the impacts of Ta barrier process, such as barrier-first and pre-clean first, and scaling of barrier and line/via on EM reliability of Cu/low-k …
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Cramer-Rao Lower Bound Derivation and Performance Analysis for Space-Based SAR SMTI
… derived deterministic target signal, and gaus- sion distributions for noise and clutter. CRLBs for the statistical model and target parameters are derived by solving the derivatives and verified using numerical methods. CRLB is then used to analyse the SMTI performance of RADARSAT-2, RADARSAT …
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Development of characterization techniques for negative bias temperature instabilities
… 800ns for C- V measurement. As a Hf-dielectric/SiON stack is replacing SiON as the gate dielectric, the task is to identify which layer of the stack dominates positive charging (PC). A main achievement in this project is the finding that PCs are dominated by the interfacial layer (IL) and they …
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DEFECTS AND LIFETIME PREDICTION OF GERMANIUM MOSFETS
… charges do not follow the same model as those in SiON/Si and an energy-alternating model has been proposed: there are a spread of energy levels of neutral hole traps below Ev andthey lift up after charging, and return below Ev after neutralization.The energy distribution of positive charges in the …
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A CARTOGRAPHIC OPTICAL CHARACTER RECOGNITION SYSTEM
… sounding values. The system consists of a precision X-Y flatbed transport, a vidicon camera, a PDP 8/e minicomputer, an interactive display console and asso-ciated software and hardware. After investigating numerous recognition algorithms, three were finally chosen to be included in the system. …
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Imitation Learning with Superhuman Policy Gradient Optimization for Sequential Cancer Treatment Decisions
… learning framework for sequential deci- sion making in head and neck cancer (HNC) treatment. Our method, Superhu- man Policy Gradient Optimization (SPGO), integrates inverse reinforcement learning principles with policy gradient updates to derive three-stage treat- ment policies directly …
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Unruly School Spaces: An Ethnographic Exploration of Year 8 Students Experiences Of Space, Gender and Well-Being in a South Wales Secondary School
This thesis explores the ways in which one Year Eight class in a South Wales secondary school experiences space, gender and well-being in their daily school lives. Using space as a conceptual tool, the thesis uses qualitative and ethnographic methods to explore the ways in which children in Valley …
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Unruly School Spaces: an ethnographic exploration of Year Eight student experiences of space, gender and well-being in a South Wales secondary school
This thesis explores the ways in which one Year Eight class in a South Wales secondary school experiences space, gender and well-being in their daily school lives. Using space as a conceptual tool, the thesis uses qualitative and ethnographic methods to explore the ways in which children in Valley …
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Characterization and Modeling of Low Frequency Noise and Dielectric Traps in Scaled MOSFET Devices
… characterization of nanoscaled high-K and SiON MOSFET devices, focusing on their trap-related device performances. Research work on performance characterization of carbon ion implantation in advanced CMOS replacement technology is also included pursuing a cost-effective approach for precise …
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Developing the Whole Child Through Movement in the Music Classroom
… well being. We can find a means of self expres- sion as well as an empathy toward others, important ingredients for living in a free world.
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Developing the Whole Child Through Movement in the Music Classroom
… well being. We can find a means of self expres- sion as well as an empathy toward others, important ingredients for living in a free world.
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