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 122 for “"Spin coating"”.
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Spin coating of Newtonian and non-Newtonian fluids
The work in this thesis deals with the axisymmetric flow of a thin fluid layer on a rotating substrate.
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Optimization of process variables in extrusion-spin coating
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1997.
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On the manufacture of very thin elastomeric films by spin-coating
… microns. PDMS films are currently fabricated by spin-coating the polymer on a wafer and then manually peeling the film after curing. This is labor-intensive and suffers from low yield, dimensional inaccuracies, tearing and wrinkling. I apply manufacturing principles to the preparation of PDMS to …
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Epitaxial growth of semiconductors and chiral metal surfaces using spin coating and electrodeposition
… process methods of electrodeposition and spin coating for growth of epitaxial thin films. First, a method is developed to directly electrodeposit epitaxial CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub> perovskite for solar cells on single crystal Au by electrochemically reducing …
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A new coating method for semiconductor lithography : fluid layer overlap in extrusion-spin coating
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1997.
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Dielectric spin coating characterization, modeling, and planarization using fill patterns for advanced packaging technologies
… electrochemical plating (ECP) and dielectric spin-coating (DSC) processes. The semi-additive techniques are typically avoided as, without CMP, they suffer from thickness variations following the fabrication of each layer. As multiple layers are fabricated, these variations compound, and can …
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An investigation of the spin coating process and a model for three-dimensional regular foams
… first part is entitled: An investigation of the spin-coating process; the second part is entitled: A model for three-dimensional regular foams.
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A study of solvent-rich environments for evaporation rate control in the extrusion spin coating process
… step in the process is the deposition of a thin coating of photoresist from which the lithographic mask is made. The photoresist layer is typically 1 [micro]m thick with a thickness variation of less than 25[angstroms] (within 3[sigma]). The current industrial process of spin coating can achieve …
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Modeling and analysis of extrusion-spin coating : an efficient and deterministic photoresist coating method in microlithography
… a variation of 5 [angstroms] for advanced chips. Spin coating is the prevalent coating method to produce the required thickness and uniformity, but it typically wastes over 90% of the photoresist applied. A more efficient method needs to be developed for two reasons. The first is that 80% of the …
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Synthese, Elektrochemie und thermisches Verhalten von Metallkomplexen
… ZnO-Schichten auf Si-Substraten mittels CVD und Spin-Coating-Prozesse stellen zwei weitere Kernthemen dieser Arbeit dar. Das Niedertemperaturfügen umfasst die Synthese von Ag(I)-Carboxylaten wie [AgO2CCR2OC(O)OMe] (R = H, Me) und deren Verwendung als Basis-Komponenten in der Entwicklung von …
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Templated self-assembly of sub-10 nm quantum dots
… templates via electron-beam lithography, and spin-coating a suspension of colloidal nanoparticles onto the template. As the solvent evaporates, the quantum dots self-assemble primarily through the capillary forces created by the dewetting of the template. We demonstrate this technique at …
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Sinter-patterning of oxide dielectric and high critical transition temperature films by pulsed neodymium:YAG laser
… film were fabricated by spin coating onto single crystal substrates such as Si, ZrO$\sb2$ and MgO.
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Selected topics in viscous flow: Coating flow with rotation
… of two parts concerning rotational molding and spin coating, respectively. Both parts consider coating flows which have relevance to industrial applications. The main theme of the thesis is to make appropriate simplifications to the mathematical descriptions of the flows in order to achieve …
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Fabrication of solution-processed photoactive polymer- and halide perovskite-based solar cells
… solution-processed solar cells using dip and spin coating methods. Inverted bulk heterojunction structure has been utilised in fabrication of polymer solar cells using dip coating method. In this structure, all layers except electrodes were deposited using dip coating method, which …
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Development of Methods to Predict and Enhance the Physical Stability of Hot Melt Extruded Solid Dispersions
… VA 64 were formulated by hot melt extrusion and spin coating into solid dispersions. A series of physicochemical characterisation techniques including MTDSC, PXRD, SEM, ATR-FTIR and AFM-LTA were used to evaluate the systems. Physical characterisation of the model drugs and polymers, prediction of …
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The Effects of Highly Reflecting Materials on Nearby Fluorescent Probes
… layer. The probe layer was produced by spin-coating and the other layers by thermal evaporation.
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Microstructure and phase development in yttrium barium(2) copper(3) oxygen(7) superconducting films prepared from carboxylate precursors
… resulting in stable solutions suitable for coatings. Thin films were deposited onto LaAlO$\sb3$ single crystal substrates by spin-coating and were fired at 740-950$\sp\circ$C under O$\sb2$, N$\sb2$, or mixed $\rm N\sb2/O\sb2$ atmosphere.
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Direct printing of lead zirconate titanate thin films
… which cannot be accomplished with conventional spin coating processes. This thesis reports the optimal conditions of deposition and crystallization for high dielectric quality PZT thin films via thermal ink jet printing. Included are details of the solution chemistry developed, printing …
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Model systems for the study of active phase evolution in complex bimetallic catalysts (PdZn)
… study the oxide precursors of the PdZn system, spin coating was used to synthesize model PdZn nanoparticles for phase transformations studies and preliminary work with CO oxidation coupled with methanol steam reforming (MSR) was used to gain insight into in-situ surface reactivity of PdZn for …
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Chiral Polymer Photodetector
… induced achiral polymers are fabricated. A “hot spin-coating” process is introduced to cast uniform limonene induced polymer films. As a result of chirality transfer, Cotton effects are also observed in these photodetectors’ CD spectra. A model is suggested to explain the chirality generation of …
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