Study Of Millisecond Laser Annealing On Ion Implanted Soi And Application To Scaled Finfet Technology,
2015
University at Albany, State University of New York
Study Of Millisecond Laser Annealing On Ion Implanted Soi And Application To Scaled Finfet Technology, Tyler J. Michalak
Legacy Theses & Dissertations (2009 - 2024)
The fabrication of metal-oxide-semiconductor field effect transistors (MOSFET) requires the engineering of low resistance, low leakage, and extremely precise p-n junctions. The introduction of finFET technology has introduced new challenges for traditional ion implantation and annealing techniques in junction design as the fin widths continue to decrease for improved short channel control. This work investigates the use of millisecond scanning laser annealing in the formation of n-type source/drain junctions in next generation MOSFET.
Implementation Of Strategies To Improve The Reliability Of Iii-Nitride Photodetectors Towards The Realization Of Visible And Solar-Blind Imaging Arrays,
2015
University at Albany, State University of New York
Implementation Of Strategies To Improve The Reliability Of Iii-Nitride Photodetectors Towards The Realization Of Visible And Solar-Blind Imaging Arrays, John Bulmer
Legacy Theses & Dissertations (2009 - 2024)
Ultraviolet (UV) radiation detectors are being heavily researched for applications in non-line-of-sight (NLOS) communication systems, flame monitoring, biological detection, and astronomical studies. These applications are currently being met by the use of Si-based photomultiplier tubes (PMTs), which are bulky, fragile, expensive and require the use of external filters to achieve true visible-blind and solar-blind operation.
High Frequency Signal Transmission In Through Silicon Via Based 3d Integrated Circuit,
2015
University at Albany, State University of New York
High Frequency Signal Transmission In Through Silicon Via Based 3d Integrated Circuit, Min Xu
Legacy Theses & Dissertations (2009 - 2024)
Through silicon vias (TSVs) enable 3-dimensional (3D) integrated circuits (ICs), which have the potential to reduce the power consumption, interconnect length and overall communication latency in modern nanoelectronics systems. High-speed signal transmission channels through stacked silicon substrates are critical for 3D heterogeneous integration. This work presents systematic analyses of fabricated 3D IC test structures. This includes test structure design, fabrication, experimental characterization, equivalent circuit modeling and full wave simulations for high-speed signal transmission of the TSV based 3D IC channels.
Carbon 1d/2d Nanoelectronics : Integration And Device Applications,
2015
University at Albany, State University of New York
Carbon 1d/2d Nanoelectronics : Integration And Device Applications, Zhaoying Hu
Legacy Theses & Dissertations (2009 - 2024)
Graphene is a one-atom thick planar monolayer of sp2-bonded carbon atoms organized in a hexagonal crystal lattice. A single walled carbon nanotube (CNT) can be thought of as a graphene sheet rolled up into a seamless hollow cylinder with extremely high length-to-diameter ratio. Their ultra-thin body, large surface area, and exceptional electronic, optical and mechanical properties make these low-dimensional carbon materials ideal candidates for electronic applications. However, adopting low-dimensional carbon materials into semiconductor industry faces significant material and integration challenges. There is an urgent need for research at fundamental and applicative levels to find a roadmap for carbon nanomaterial to …
Elliptical Metasurfaces For Cloaking And Antenna Applications At Microwave And Terahertz Frequencies,
2015
University of Mississippi
Elliptical Metasurfaces For Cloaking And Antenna Applications At Microwave And Terahertz Frequencies, Hossein Mehrpourbernety
Electronic Theses and Dissertations
No abstract provided.
Divergence And Bayes Error Based Soft Decision For Decentralized Signal Detection Of Correlated Sensor Data,
2015
University of Mississippi
Divergence And Bayes Error Based Soft Decision For Decentralized Signal Detection Of Correlated Sensor Data, Roopa Shree Rajanna
Electronic Theses and Dissertations
No abstract provided.
Localization Of Sensors In Presence Of Fading And Mobility,
2015
University of Mississippi
Localization Of Sensors In Presence Of Fading And Mobility, Hamzeh Hussain Omari
Electronic Theses and Dissertations
The objective of this dissertation is to estimate the location of a sensor through analysis of signal strengths of messages received from a collection of mobile anchors. In particular, a sensor node determines its location from distance measurements to mobile anchors of known locations. We take into account the uncertainty and fluctuation of the RSS as a result of fading and take into account the decay of the RSS which is proportional to the transmitter-receiver distance power raised to the PLE. The objective is to characterize the channel in order to derive accurate distance estimates from RSS measurements and then …
Synchrophasor Assisted Efficient Fault Location Techniques In An Active Distribution Network,
2015
North Carolina Agricultural and Technical State University
Synchrophasor Assisted Efficient Fault Location Techniques In An Active Distribution Network, Anil Khanal
Dissertations
Reliability of an electrical system can be improved by an efficient fault location identification for the fast repair and remedial actions. This scenario changes when there are large penetrations of distributed generation (DG) which makes the distribution system an active distribution system. An efficient use of synchrophasors in the distribution network is studied with bidirectional power flow, harmonics and low angle difference consideration which are not prevalent in a transmission network. A synchrophasor estimation algorithm for the P class PMU is developed and applied to identify efficient fault location. A fault location technique using two ended synchronized measurement is derived …
Fault Section Identification For Power Distribution Systems Using Online Measurements,
2015
University of Kentucky
Fault Section Identification For Power Distribution Systems Using Online Measurements, Jie Chen
Theses and Dissertations--Electrical and Computer Engineering
Fault location is very important for distribution systems, and quickly identifying the fault and restoring the system can help reduce the outage time and make the system more reliable. In this thesis, a method for locating faults on distribution systems is introduced to quickly identify the faulted feeder sections by using the overcurrent information from the switches in the system. Fuzzy logic is utilized. The proposed method can quickly and accurately locate faulted sections with different fault locations, fault types and fault resistances. The method is applicable to cases with single-faults or multi-faults, and is applicable to networks with multi-sources. …
Performance Evaluation Of Tcp Multihoming For Ipv6 Anycast Networks And Proxy Placement,
2015
University of Central Florida
Performance Evaluation Of Tcp Multihoming For Ipv6 Anycast Networks And Proxy Placement, Raya Alsharfa
Electronic Theses and Dissertations
In this thesis, the impact of multihomed clients and multihomed proxy servers on the performance of modern networks is investigated. The network model used in our investigation integrates three main components: the new one-to-any Anycast communication paradigm that facilitates server replication, the next generation Internet Protocol Version 6 (IPv6) that offers larger address space for packet switched networks, and the emerging multihoming trend of connecting devices and smart phones to more than one Internet service provider thereby acquiring more than one IP address. The design of a previously proposed Proxy IP Anycast service is modified to integrate user device multihoming …
Post Conversion Correction Of Non-Linear Mismatches For Time Interleaved Analog-To-Digital Converters,
2015
University of Central Florida
Post Conversion Correction Of Non-Linear Mismatches For Time Interleaved Analog-To-Digital Converters, Charna Parkey
Electronic Theses and Dissertations
Time Interleaved Analog-to-Digital Converters (TI-ADCs) utilize an architecture which enables conversion rates well beyond the capabilities of a single converter while preserving most or all of the other performance characteristics of the converters on which said architecture is based. Most of the approaches discussed here are independent of architecture; some solutions take advantage of specific architectures. Chapter 1 provides the problem formulation and reviews the errors found in ADCs as well as a brief literature review of available TI-ADC error correction solutions. Chapter 2 presents the methods and materials used in implementation as well as extend the state of the …
Optimal Distribution Network Reconfiguration Using Meta-Heuristic Algorithms,
2015
University of Central Florida
Optimal Distribution Network Reconfiguration Using Meta-Heuristic Algorithms, Arash Asrari
Electronic Theses and Dissertations
Finding optimal configuration of power distribution systems topology is an NP-hard combinatorial optimization problem. It becomes more complex when time varying nature of loads in large-scale distribution systems is taken into account. In the second chapter of this dissertation, a systematic approach is proposed to tackle the computational burden of the procedure. To solve the optimization problem, a novel adaptive fuzzy based parallel genetic algorithm (GA) is proposed that employs the concept of parallel computing in identifying the optimal configuration of the network. The integration of fuzzy logic into GA enhances the efficiency of the parallel GA by adaptively modifying …
Beam-Steerable And Reconfigurable Reflectarray Antennas For High Gain Space Applications,
2015
University of Central Florida
Beam-Steerable And Reconfigurable Reflectarray Antennas For High Gain Space Applications, Kalyan Karnati
Electronic Theses and Dissertations
Reflectarray antennas uniquely combine the advantages of parabolic reflectors and phased array antennas. Comprised of planar structures similar to phased arrays and utilizing quasi-optical excitation similar to parabolic reflectors, reflectarray antennas provide beam steering without the need of complex and lossy feed networks. Chapter 1 discusses the basic theory of reflectarray and its design. A brief summary of previous work and current research status is also presented. The inherent advantages and drawbacks of the reflectarray are discussed. In chapter 2, a novel theoretical approach to extract the reflection coefficient of reflectarray unit cells is developed. The approach is applied to …
An Optimization Of Thermodynamic Efficiency Vs. Capacity For Communications Systems,
2015
University of Central Florida
An Optimization Of Thermodynamic Efficiency Vs. Capacity For Communications Systems, Gregory Rawlins
Electronic Theses and Dissertations
This work provides a fundamental view of the mechanisms which affect the power efficiency of communications processes along with a method for efficiency enhancement. Shannon's work is the definitive source for analyzing information capacity of a communications system but his formulation does not predict an efficiency relationship suitable for calculating the power consumption of a system, particularly for practical signals which may only approach the capacity limit. This work leverages Shannon's while providing additional insight through physical models which enable the calculation and improvement of efficiency for the encoding of signals. The proliferation of Mobile Communications platforms is challenging capacity …
General Vector Explicit - Impact Time And Angle Control Guidance,
2015
University of Central Florida
General Vector Explicit - Impact Time And Angle Control Guidance, Loren Robinson
Electronic Theses and Dissertations
This thesis proposes and evaluates a new cooperative guidance law called General Vector Explicit - Impact Time and Angle Control Guidance (GENEX-ITACG). The motivation for GENEX-ITACG came from an explicit trajectory shaping guidance law called General Vector Explicit Guidance (GENEX). GENEX simultaneously achieves design specifications on miss distance and terminal missile approach angle while also providing a design parameter that adjusts the aggressiveness of this approach angle. Encouraged by the applicability of this user parameter, GENEX-ITACG is an extension that allows a salvo of missiles to cooperatively achieve the same objectives of GENEX against a stationary target through the incorporation …
Enhanced Microwave Hyperthermia Using Nanoparticles,
2015
University of Central Florida
Enhanced Microwave Hyperthermia Using Nanoparticles, Maryory Urdaneta
Electronic Theses and Dissertations
In this dissertation a study of enhanced hyperthermia for cancer treatment through the use of magnetic nanoparticles is presented. Hyperthermia has been in use for many years, as a potential alternative method in cancer treatment, and high frequency microwave radiation has been used successfully to raise the tumor temperature to around 42°C in superficial tumors without causing damage to surrounding healthy tissues. Magnetic fluid hyperthermia involves the use of magnetic nanoparticles injected into the tumor before exposure to microwave radiation. The magnetic energy in the nanoparticles is converted into heat allowing for a more rapid rise of temperature in the …
Cascaded Digital Refinement For Intrinsic Evolvable Hardware,
2015
University of Central Florida
Cascaded Digital Refinement For Intrinsic Evolvable Hardware, Vignesh Thangavel
Electronic Theses and Dissertations
Intrinsic evolution of reconfigurable hardware is sought to solve computational problems using the intrinsic processing behavior of System-on-Chip (SoC) platforms. SoC devices combine capabilities of analog and digital embedded components within a reconfigurable fabric under software control. A new technique is developed for these fabrics that leverages the digital resources' enhanced accuracy and signal refinement capability to improve circuit performance of the analog resources' which are providing low power processing and high computation rates. In particular, Differential Digital Correction (DDC) is developed utilizing an error metric computed from the evolved analog circuit to reconfigure the digital fabric thereby enhancing precision …
Predictive Modeling For Assessing The Reliability Of Bypass Diodes In Photovoltaic Modules,
2015
University of Central Florida
Predictive Modeling For Assessing The Reliability Of Bypass Diodes In Photovoltaic Modules, Narendra Shiradkar
Electronic Theses and Dissertations
Solar Photovoltaics (PV) is one of the most promising renewable energy technologies for mitigating the effect of climate change. Reliability of PV modules directly impacts the Levelized Cost of Energy (LCOE), which is a metric for cost competitiveness of any energy technology. Further reduction in LCOE of PV through assured long term reliability is necessary in order to facilitate widespread use of solar energy without the need for subsidies. This dissertation is focused on frameworks for assessing reliability of bypass diodes in PV modules. Bypass diodes are critical components in PV modules that provide protection against shading. Failure of bypass …
A Roughness Correction For Aquarius Ocean Brightness Temperature Using The Conae Microwave Radiometer,
2015
University of Central Florida
A Roughness Correction For Aquarius Ocean Brightness Temperature Using The Conae Microwave Radiometer, Yazan Hejazin
Electronic Theses and Dissertations
Aquarius/SAC-D is a joint NASA/CONAE (Argentine Space Agency) Earth Sciences satellite mission to measure global sea surface salinity (SSS), using an L-band radiometer that measures ocean brightness temperature (Tb). The application of L-band radiometry to retrieve SSS is a difficult task, and therefore, precise Tb corrections are necessary to obtain accurate measurements. One of the major error sources is the effect of ocean roughness that "warms" the ocean Tb. The Aquarius (AQ) instrument (L-band radiometer/scatterometer) baseline approach uses the radar scatterometer to provide this ocean roughness correction, through the correlation of radar backscatter with the excess ocean emissivity. In contrast, …
Modified System Design And Implementation Of An Intelligent Assistive Robotic Manipulator,
2015
University of Central Florida
Modified System Design And Implementation Of An Intelligent Assistive Robotic Manipulator, Nicholas Paperno
Electronic Theses and Dissertations
This thesis presents three improvements to the current UCF MANUS systems. The first improvement modifies the existing fine motion controller into PI controller that has been optimized to prevent the object from leaving the view of the cameras used for visual servoing. This is achieved by adding a weight matrix to the proportional part of the controller that is constrained by an artificial ROI. When the feature points being used are approaching the boundaries of the ROI, the optimized controller weights are calculated using quadratic programming and added to the nominal proportional gain portion of the controller. The second improvement …
