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 8 of 8 for “"High aspect ratio structures"”.
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Role of growth inhibitors in nucleation and growth of thin film deposited by chemical vapor deposition in high aspect ratio structures
… surface morphology in a controlled manner in high aspect ratio structures. The results also provide insight into the interpretation of surface morphology using the power spectral density (Fourier transform) of AFM height data, in particular, the low- and high-k dependencies. In general, thin …
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Design And Optimization Of Nano-optical Elements By Coupling Fabrication To Optical Behavior
… to model optical performance of the simulated structures. Using these tools, it was predicted and demonstrated that 3D nanostructures may be formed on a standard mask aligner. A space-variant photonic crystal filter was designed and optimized based on a simple fabrication method of etching …
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Multiphoton lithography of mechanically and functionally tunable hydrogels
… permitted the fabrication of intricate, 3D microstructures from a range of materials, including protein hydrogels. MPL can be used to fabricate functional hydrogels on the scale of 100 μm, with features on the order of 1 μm. This dissertation examines existing MPL techniques to discover ways in …
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MOLTEN-BASED 3-D DIRECTWRITE FABRICATION OF MICRO STRUCTURES
… Thus, it has difficulties in making 3D or very high aspect ratio structures due to it is mainly a 2D process. Meanwhile, the demand for 3D micro-structures or high aspect ratio microstructures is increasing in various fields, such as micro needles, micro antenna etc. In this dissertation, we …
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Extrusion Based Ceramic 3D Printing - Printer Development, Part Characterization, and Model-Based Systems Engineering Analysis
… zircon was selected because it is an ultra-high temperature ceramic with high toughness and good refractory properties. Additionally, alumina, bioglass, and zirconia slurries were formulated and used as the feedstock material for the ceramic 3D printer. The developed 3D printing system was …
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Capillary breakup of Discontinuously Rate Thickening Suspensions
… leading to formation of morphologically complex, high aspect ratio structures. It was found that the formation of these structures is caused by the viscous drag exerted on the filament by the oil bath. The behavior of DRTS filaments in capillary breakup was modeled with 1- dimensional …
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Design and Processing of Ferrite Paste Feedstock for Additive Manufacturing of Power Magnetic Components
… suitable bulk magnetic material for working at high frequencies but it is difficult to fabricate novel designs of ferrite magnetic components because of the limitations of conventional fabrication methods. Additive manufacturing (AM) has the potential to make customize ferrite magnetic …
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Co-reactant interactions with CVD surfaces: Activation or passivation of growth
… etching of metals. The conformal deposition of highly conductive or superconductive transition metal nitride thin films is technologically important for a wide range of applications. For early transition metal nitrides, reaction of dialkylamido precursors and ammonia follow the transamination …