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 36 for “"nano-fabrication"”.
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Design, fabrication, and characterization of a compact magnetron sputtering system for micro/nano fabrication
A general rule of thumb for new semiconductor fabrication facilities (fabs) is that revenues from the first year of production must match the capital cost of building the fab itself. With modem fabs routinely exceeding $1 billion to build, this rule serves as a significant barrier to entry for …
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Interfacial physics in meniscus-confined electrodeposition and its applications for fabricating electronic structures
A novel three-dimensional micro-/nano-fabrication method, the meniscus-confined electrodeposition, was developed and studied. It exploits the thermodynamic stability of a microscale or nanoscale liquid meniscus to direct-write pure metallic three-dimensional structures of designed shapes and sizes …
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Nano Mechanical Machining Using AFM Probe
… Given the high market demand for such micro and nano featured components, different manufacturing methods have been developed for their fabrication. The common technologies in micro/nano fabrication are photolithography, electron beam lithography and other semiconductor processing techniques. …
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Using surface topography to re-analyze gradients in mussel byssal threads
… the fields of thin film production, biology and nano-fabrication. The creation of specific wrinkling and buckling patterns has been used as both a characterization and control technique. This project aims to apply the analysis of thin film wrinkling patterns to characterize the mechanical …
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Nanostructured Origami (TM) : folding thin films out of the plane of a silicon wafer with highly stressed chromium hinges
… construction of complex three-dimensional (3-D) nanostructures using only 2-D, planar nano-fabrication techniques. In the state of the art, multiple 2-D layers are fabricated in series, each directly on top of the previous. The method advocated here is Nanostructured Origami, in which multiple …
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TUNING AND OPTOMECHANICS OF COUPLED PHOTONIC CRYSTAL NANOBEAM CAVITIES
… devices based on coupled photonic crystal nanobeam cavities, with studies including nano fabrication process development, device tuning with NEMS actuators, investigation of optical gradient force and tunable cavity optomechanics. High efficiency resonance tuning by electrostatically …
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Nanotexturisation of gold surfaces and its application to neural implants
… in geometrical footprint of the electrode with nano-fabrication tools. A process has been created that uses Nanosphere Lithography for masking layer deposition and anisotropic etching to fabricate nanostructures on the surface of the electrodes. Optimisation of the process parameters led to a …
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Design And Optimization Of Nano-optical Elements By Coupling Fabrication To Optical Behavior
Photonic crystals and nanophotonics have received a great deal of attention over the last decade, largely due to improved numerical modeling and advances in fabrication technologies. To this day, fabrication and optical behavior remain decoupled during the design phase and numerous assumptions are …
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Coherent control of nitrogen-vacancy centers in diamond nanostructures for quantum sensing and networking
… environment of the diamond allows us to engineer nanostructures, which are promising for enhancing the optical and spin properties of the NV-. To help develop a component needed for a diamond-based quantum network, we recently achieved coherent electron spin control of long-lived NV-s in diamond …
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Optical Antenna Photovoltaics & Making Metallic Nano-rods
… the major hurdles as being the lack of reliable nano-fabrication and an inability to rectify into the Tera-hertz frequencies band. Presently we aim to fabricate photovoltaic cells that incorporate an array of vertically aligned metallic nano-rods (MNR). Porous aluminum oxide (PAO) is used as a …
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Design and fabrication of micro- and nano- dielectric structures for imaging and focusing at optical frequencies
In this thesis work, design and fabrication of micro- and nano-photonic structures both in the diffraction regime and sub-wavelength regime have been investigated. In the diffraction regime, two types of optical systems and optical elements were investigated for application in LCD manufacturing. …
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Fabrication of critical-angle transmission gratings for high efficiency x-ray spectroscopy
… the CAT gratings by integrating many micro and nano-fabrication technologies. The fabrication process involves interference lithography for patterning fine pitch gratings and wet anisotropic etching on thin silicon membranes for straight and ultrahigh aspectratio (~ 150) freestanding structures. …
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Optical Nanoantennas Integrated with 3D Microelectrode Arrays: Hybrid Photonic-Electronic Modalities for Nano-Bio Interfacing
… challenge but recent advancements in micro- and nano-fabrication has shown that patterned protruding pillars from surfaces at the micro- and nano-scale can mimic intrinsic biological structural cues to trigger strong cell adhesion, engulfment, and growth, providing a means by which to engineer …
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Giant Magnetoresistance and Quantum Transport in Magnetic Hybrid Nanostructures.
Technological advances in device micro- and nano-fabrication over the past decade has enabled a variety of novel heterojunction device structures to be made. Among these, magnetic multilayers, superconductor/normal metal junctions and carbon nanotubes exhibit a rich variety of features, with the …
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Electric field based fabrication methods for multi-scale structured surfaces
Control of micro/nano scale surface structures and properties is crucial to developing novel functional materials. From an engineering point of view, the development of scalable and economical micro/nano-fabrication methods has been in high demand. In this dissertation, electrophoretic deposition …
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A piezoelectric translational flow agitator for active air cooling of electronics.
… development of integrated circuits with micro-nano fabrication, the need increases for powerful cooling facilities. Different cooling schemes such as liquid cooling, direct sprays, boiling heat transfer, etc. have been developed to meet the needs of heat removal. Air cooling still has potential …
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Fabrication and analysis of carbon nanotube based emitters
We have advanced the state-of-the-art for nano-fabrication of carbon nanotube (CNT) based field emission devices, and have conducted experimental and theoretical investigations to better understand the reasons for the high reduced brightness achieved. We have demonstrated that once the CNT emitter …
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Design, fabrication and characterization of resonant waveguide grating based optical biosensors
… detection limit down to single molecule. Optical nanostructures, specifically the resonant waveguide grating (RWG) and nano-ribbon cavity based biodetection are promising in this context. The main element of this dissertation is design, fabrication and characterization of RWG sensors for different …
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Design and Control of Versatile High-Speed and Large-Range Atomic Force Microscopes
Microscopy instruments are important in nano-technology research for imaging of nanoscale phenomena. Among such tools is the atomic force microscope (AFM) for nanoscale imaging and surface characterization. An AFM scans a micro-cantilever over the sample surface to measure various quantities from …
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Probing Matter with Photons, Electrons and Neutrons: A Study of Water and Flax
… between flax based peptides and gold nanoparticles. The topics covered in this work differ greatly, however the approaches taken to investigate the respective systems employ the same concepts of scattering. Scattering provides a basis for the investigation of both water and the flax …
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