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 62 for “"chip-scale"”.
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Chip-Scale Gas Chromatography
… the integrated module to present the idea of a chip-scale μGC system. The possibility of using μGC technology in practical applications such as breath analysis and water monitoring is also demonstrated. Moreover, a nanotechnology based scheme for enhancing the adsorption capacity of the …
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Chip-scale diffraction phase microscopy
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2024-05-01
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Fabrication of chip-scale radio frequency inductors
… force and deformation in forming of micro-scale inductor coils. This was accomplished by applying large-deflection beam bending to the case of planar wire deformation and through experimental validation. Generating this knowledge is important because it establishes fabrication limits for …
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Chip-scale atomic magnetometer based on free-induction-decay
This thesis describes the implementation of an optically pumped caesium magnetometer containing a 1:5mm thick microfabricated vapour cell with nitrogen buffer gas, operating in a free-induction-decay configuration. This allows us to monitor the free Larmor precession of the spin coherent Cs atoms …
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Drop Impact Reliability Testing Lead-Free Chip Scale Packages
… joints. This thesis discusses the reliability of Chip Scale Packages (CSPs) in drop impact, with and without the CSPs being edge-bonded, using two failure detection systems and presents the component failure sequence as observed by each system. To enable this study a high-speed data acquisition …
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Chip Scale Integrated Optical Sensing Systems with Digital Microfluidic Systems
… diagnostics and monitoring applications. Chip scale integrated planar photonic sensing systems that can combine optical, electrical and fluidic functions are especially attractive to address sensing applications, because of their high sensitivity, compactness, high surface specificity …
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Chip-scale quadrupole mass filters for a Micro-Gas Analyzer
… filter component still has room for exploration. Chip-scale quadrupole mass filters achieved entirely through wafer-scale processing have been designed, fabricated, and characterized. The device integrates the quadrupole electrodes, ion optics, and housing into a single monolithic block, …
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Development of Integrated "Chip-Scale" Active Antennas for Wireless Applications
… the physical size of the antenna to enable on-chip integration. A high dielectric constant substrate reduces the guided wavelength. Grounding one edge of the microstrip patch enables the resonant antenna length to be further reduced to ~ λ<sub>g</sub>/4. However, these techniques result in …
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Terahertz frequency synthesis in CMOS for a chip-scale molecular clock
… and sensing systems. A recently invented chip-scale molecular clock (CSMC) based on terahertz electronics could enable low-cost, atomic-grade timekeeping for applications that are poorly served by existing clock technologies. However, the first CSMC left opportunities to optimize the …
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Photonics for technology : circuits, chip-scale LIDAR, and optical neural networks
… general one-way circuits. Next we create a new chip-scale LIDAR architecture in analogy to planar RF lenses. Instead of relying upon many continuously tuned thermal phase shifters to implement nonmechanical beam steering, we use aplanatic lenses excited in their focal plane feeding ID gratings …
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Advanced System-Scale and Chip-Scale Interconnection Networks for Ultrascale Systems
The path towards realizing next-generation petascale and exascale computing is increasingly dependent on building supercomputers with unprecedented numbers of processors. Given the rise of multicore processors, the number of network endpoints both on-chip and off-chip is growing exponentially, with …
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Chip-scale Photonic Devices for Light-matter Interactions and Quantum Information Processing
Chip-scale photonic devices such as microdisks, photonic crystal cavities and slow-light photonic crystal waveguides possess strong light localization and long photon lifetime, which will significantly enhance the light-matter interactions and can be used to implement new functionalities for both …
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Near-field wireless power transfer to and communication with chip-scale devices
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2019-08-01
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Chip-scale modeling of pattern dependencies in copper chemical mechanical polishing processes
… this thesis, the first predictive semi-physical chip-scale pattern dependent model for copper CMP processes is developed. A comprehensive model calibration methodology for any multi-step copper CMP process is also developed. The model takes into account the initial long range electroplated …
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Energy-efficient architectures for chip-scale networks and memory systems using silicon-photonics technology
… patterns. With computational capacity of large-scale systems projected to rise up to 50GFLOPS/W, the target energy-per-bit budget for data movement is expected to reach as low as 0.1pJ/bit, assuming 200bits/FLOP for data transfers. This tight energy budget impacts the design of both chip-scale …
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Chip scale monolithic integration of inductive and capacitive components by self-rolled-up membrane nanotechnology
… structure, thereby greatly reducing the on-chip area footprint. The individual L-C elements are fabricated in-plane using standard semiconductor processing techniques, and subsequently triggered by the built-in stress to self-assemble and roll into cylindrical air-core architectures. By …
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Miniaturized Chip-Scale Quantum and Terahertz Systems Through Tight Integration of Electronics, Electromagnetics, and Qubits
… spectrum. This thesis presents innovations of chip-scale quantum and THz systems, which allow for significant miniaturization, practical solutions, and exciting research opportunities across the device, circuit, and system levels. To illustrate such opportunities, we propose two chip-scale …
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Thermal and thermo-mechanical performance of voided lead-free solder thermal interface materials for chip-scale packaged power device
… modules such as Electronic Control Unit (ECU). Chip scale packaging (CSP) technology offer promising solution for packaging power electronics. This is as a result of the technology’s relatively improved thermal performance and inherent size advantage. In CSP technology, heat removal from …
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Gallium nitride high electron mobility transistors in chip scale packaging: evaluation of performance in radio frequency power amplifiers and thermomechanical reliability characterization
… of over 600 V, realized in cost effective chip scale packages, and with inherently low parasitic capacitances and inductances. In this work, two types of inexpensive commercially available AlGaN/GaN high electron mobility transistors (HEMTs) in chip scale packages are evaluated in a set of …
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