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An automated system for measuring PWB/PWBA warpage during simulation of the infrared reflow and wave soldering processes, and during operational thermal cyclingStiteler, Michael Ross 05 1900 (has links)
No description available.
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Application of internal state variable models to thermal processing and reliability of plated through holes in printed wiring boardsFu, Chia-Yu 08 1900 (has links)
No description available.
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Improved prediction modeling with validation for thermally-induced PWB warpagePolsky, Yarom 05 1900 (has links)
No description available.
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64 |
Factors which enhance conductive anodic filament (CAF) formationReady, William Judson, IV 05 1900 (has links)
No description available.
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65 |
A Novel Design for Fully Printed Flexible AC-driven Powder Electroluminescent Devices on PaperKronfli, Rosanna 26 June 2014 (has links)
ACPEL devices were fabricated onto various paper substrates. The dielectric and phosphor layers were mask printed, a PEDOT:PSS/SWCNT ink was inkjet-printed for the cathode and a translucent conductor was applied with a paintbrush for the anode resulting in a maximum luminance of 8.05 cd/m2 at 300 VAC and 60 Hz. It was found that the conductivity of the PEDOT:PSS/SWCNT ink on the various paper types was affected by the coating and paper thickness. Novel ACPEL devices were also fabricated by incorporating paper as the dielectric layer of the device. The maximum luminance achieved was 7.24 cd/m2 at 300 VAC and 60 Hz. It is shown that the dielectric constant of the paper and hence the performance of the resulting EL device may be enhanced by filling the sheet with BaTiO3 and by the surface treatment of the sheet.
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A Novel Design for Fully Printed Flexible AC-driven Powder Electroluminescent Devices on PaperKronfli, Rosanna 26 June 2014 (has links)
ACPEL devices were fabricated onto various paper substrates. The dielectric and phosphor layers were mask printed, a PEDOT:PSS/SWCNT ink was inkjet-printed for the cathode and a translucent conductor was applied with a paintbrush for the anode resulting in a maximum luminance of 8.05 cd/m2 at 300 VAC and 60 Hz. It was found that the conductivity of the PEDOT:PSS/SWCNT ink on the various paper types was affected by the coating and paper thickness. Novel ACPEL devices were also fabricated by incorporating paper as the dielectric layer of the device. The maximum luminance achieved was 7.24 cd/m2 at 300 VAC and 60 Hz. It is shown that the dielectric constant of the paper and hence the performance of the resulting EL device may be enhanced by filling the sheet with BaTiO3 and by the surface treatment of the sheet.
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An Aperture Synthesis Technique for Cylindrical Printed Lens/Transmitarray Antennas with Shaped BeamsBiswas, Mahmud 27 June 2013 (has links)
Printed lens antennas offer the possibility of realizing shaped beam patterns using no more complexity than is required for pencil beam patterns. Shaped beam patterns can be obtained by appropriately determining the complex transmission coefficient required for each cell (or element) of the printed lens, taking into account the varying feed field over the input surface of the lens. Certain ranges of transmission coefficient amplitude and phase are undesirable (eg. too low an amplitude implies a large reflection at the lens input surface). It would be preferable to constrain the range of values that the transmission coefficient can take as an integral part of the lens synthesis procedure, and thus the transmission coefficient itself needs to be the synthesis variable. In this thesis a synthesis technique for doing this is developed based on the method of generalized projections, modified to “operate” in the space of transmission coefficients. This makes it possible to immediately perceive what influence constraints on the actual transmission coefficients have on the possible radiation pattern performance. In addition, an approach that allows one to constrain the transmission coefficient to values that must be selected from an available database of transmission coefficients is incorporated into the synthesis technique.
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Design, fabrication, and dynamic modeling of a printed circuit based MEMS accelerometerRogers, John E., Ramadoss, Ramesh. Hung, John Y. January 2007 (has links) (PDF)
Thesis(M.S.)--Auburn University, 2007. / Abstract. Vita. Includes bibliographic references (p.44-45).
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69 |
Computational drop testing of printed circuit boards with BGA componentsJordy, Daniel Edward. January 2007 (has links)
Thesis (M.S.)--State University of New York at Binghamton, Watson School of Engineering and Applied Science (Mechanical Engineering), 2007. / Includes bibliographical references.
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70 |
Experimental and numerical study of solder ball joints' reliability at package level & board level /Xu, Zhengjian. January 2009 (has links)
Thesis (M.Phil.)--Hong Kong University of Science and Technology, 2009. / Includes bibliographical references (leaves 99-110).
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