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Gotowe bibliografie tematyczne / EMI shield layer

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Gotowa bibliografia na temat „EMI shield layer”

Autor: Grafiati

Data publikacji: 6 września 2023

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Artykuły w czasopismach na temat "EMI shield layer"

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Karim, Nozad, Rong Zhou, and Jun Fan. "An Innovative Package EMC Solution Using a Highly Cost-Effective Sputtered Conformal Shield." Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2016, DPC (2016): 002152–81. http://dx.doi.org/10.4071/2016dpc-tha42.

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High-speed digital and wireless devices radiate undesired electromagnetic noises that affect the normal operation of other devices causing electromagnetic interference (EMI) problems. Printed circuit board (PCB) and system-level shielding may alleviate inter-system EMI between the PCB board and the outside environment, but does not prevent intra-system EMI within the shielding enclosure. Package and System in Package (SiP) level shielding is often used to minimize intra-system EMI issues. An external metal lid is traditionally employed to prevent noise emission from a device, but the cost and

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Hung, Fei Shuo, Fei Yi Hung, Che Ming Chiang, and Truan Sheng Lui. "Building Materials Effects of Al Content and Physical Properties on the Electromagnetic Interference Shielding of Sn Based Coating Thin Layers." Applied Mechanics and Materials 142 (November 2011): 142–51. http://dx.doi.org/10.4028/www.scientific.net/amm.142.142.

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This study coats complex colloid mixed with Sn-xAl powders and polyethylene on glass to examine the shield effect on electromagnetic interference (EMI). In addition, the sputtering specimens and powder coating specimens were compared. The results show that adding Al to the Sn-xAl powders can increase the electromagnetic interference (EMI) shield at lower frequencies. Notably, the number of cavities in the coating layer increased with the coating thickness, with the result that the EMI shield could not improve with an increase in the coating thickness at higher frequencies. However, the EMI shi

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Kim, Jaeyeon, Suyeong Lee, Changho Kim, Yeongcheol Park, Mi-Hyun Kim, and Jae Hun Seol. "Electromagnetic Interference Shield of Highly Thermal-Conducting, Light-Weight, and Flexible Electrospun Nylon 66 Nanofiber-Silver Multi-Layer Film." Polymers 12, no. 8 (2020): 1805. http://dx.doi.org/10.3390/polym12081805.

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A light-weight, flexible electromagnetic interference (EMI) shield was prepared by creating a layer-structured metal-polymer composite film consisting of electrospun nylon 66 nanofibers with silver films. The EMI shielding effectiveness (SE), specific SE, and absolute SE of the composite were as high as 60.6 dB, 67.9 dB cm3/g, and 6792 dB cm2/g in the X- and Ku-bands, respectively. Numerical and analytical calculations suggest that the energy of EM waves is predominantly absorbed by inter-layer multiple reflections. Because the absorbed EM energy is dissipated as heat, the thermal conductivity

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Morris, Scott, and Dan Carey. "Study of Grounding Schemes Utilized in Conformal Shielding Applications." International Symposium on Microelectronics 2010, no. 1 (2010): 000906–11. http://dx.doi.org/10.4071/isom-2010-tha4-paper6.

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There are many different shielding technologies available for electromagnetic interference (EMI) shielding in radio frequency (RF) applications. We will investigate various EMI shielding technologies, one of which is RFMD's MicroShield™ Integrated RF Shielding technology's conformal plating process that encapsulates the device with a solid sheet of metal. This novel technology provides improvements in form factor, ease of use, and lower cost as compared to traditional shielding approaches. We will compare ground designs within the substrate to determine maximum EMI shield performance. An exami

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Joo, Kisu, Kyu Jae Lee, Jung Woo Hwang, Jin-Ho Yoon, Yoon-Hyun Kim, and Se Young Jeong. "High Performance EMI Shielding Materials and Spraying Process Parameters for High Frequency FCBGA Application." International Symposium on Microelectronics 2018, no. 1 (2018): 000734–40. http://dx.doi.org/10.4071/2380-4505-2018.1.000734.

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Abstract We studied and demonstrated high-performance Ag epoxy composites. A variety of shaped Ag particles were teste to optimize the electrical properties and mechanical reliability. The resulting Ag epoxy composites containing flake-shaped Ag particles showed less than 5×10−7Ω·m electrical conductivity and about 20mΩ series-resistance of PKG daisy chain, which directly corresponded to the excellent shield effectiveness. The shield effectiveness of resulting EMI shielding layer made of Ag and matrix is as high as 60dB, 65dB, 70dB at 5um, 10um, 20um-thick film, respectively by ASTM standard.

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Koukal, Jiří, Ludmila Kostkova, Milada Mazurova, and Jan L. Vitek. "Laser Centre ELI, Dolni Brezany." Advanced Materials Research 1106 (June 2015): 3–7. http://dx.doi.org/10.4028/www.scientific.net/amr.1106.3.

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The ELI (Extreme Light Infrastructure) Laser Centre building is a relatively complex object, which has to meet a number of unusual requirements arising from its function. A reinforced concrete structure of the laser hall is one of the most complex parts of the Centre. The structure not only fulfils its static function – withstanding the static load, but it must also minimize any incidental vibrations and shield radiation generated during operation of the laser. Structural and material solution of the structure must match these requirements.

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Blachowicz, Tomasz, Dariusz Wójcik, Maciej Surma, Mirosław Magnuski, Guido Ehrmann, and Andrea Ehrmann. "Textile Fabrics as Electromagnetic Shielding Materials—A Review of Preparation and Performance." Fibers 11, no. 3 (2023): 29. http://dx.doi.org/10.3390/fib11030029.

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Shielding of instruments and humans from electromagnetic interference (EMI) has become increasingly important during the last decades due to more and more machines and devices radiating electromagnetic waves. While several applications can use rigid shields, more flexibility is enabled by developing bendable, drapable, ideally even stretchable EMI shielding. Textile fabrics can have these properties, combined with potentially good mechanical properties, depending on the textile structure and the chosen material. On the other hand, the necessary physical properties, especially conductivity and

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He, Youliang. "Wireless Corrosion Monitoring Sensors Based on Electromagnetic Interference Shielding of RFID Transponders." Corrosion 76, no. 4 (2020): 411–23. http://dx.doi.org/10.5006/3384.

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Electromagnetic interference (EMI) shielding is a common technology used to protect electronic devices from the interference of environmental noise or to prevent the radiation of electromagnetic waves from electronic devices to the environment. In this research, the EMI shielding principle was utilized to develop a simple and cost-effective wireless corrosion-monitoring sensor. A thin metal sheet (e.g., a steel foil) similar to the material to be monitored was attached onto the surface of a radio frequency identification (RFID) transponder and served as an RF shielding layer to block the commu

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Wang, Quanliang, Jie Tang, Shengling Xiao, Min Wang, and Sheldon Q. Shi. "Natural fiber-based composites with high hydrophobic, magnetic, and EMI shielding properties via iron oxide in situ synthesis and copper film deposition." BioResources 15, no. 4 (2020): 8384–402. http://dx.doi.org/10.15376/biores.15.4.8384-8402.

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A sandwich-structured natural fiber-based magnetic composite, without the use of a binder, was developed in this study. It was fabricated via in situ synthesis, densification, and magnetron sputtering processes. The chemical composition, crystal structure, microstructure, and thermal stability were characterized via X-ray photoelectron spectroscopy, energy-dispersive spectroscopy, X-ray diffraction, scanning electron microscope, and thermogravimetric analysis. The hydrophobic, magnetic, and electromagnetic interference shielding properties were investigated by measuring the static water contac

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Flemming, Jeb, Kyle McWethy, Tim Mezel, Luis Chenoweth, and Carrie Schmidt. "Photosensitive Glass-Ceramics for Heterogeneous Integration." Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2019, DPC (2019): 000880–907. http://dx.doi.org/10.4071/2380-4491-2019-dpc-presentation_wp1_036.

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The push for heterogeneous integration requires very unique material properties with respect to processing, material constants, and integration capabilities with other materials (such as copper, III–V, magnetics, etc.). Current common circuit board materials such as ceramics and laminates, as well as silicon substrates, suffer from a variety of limitations. For ceramics and laminates, these constraints include: (1) the inability to produce narrow line widths &lt;100 m with narrow gaps between lines &lt;100 m; (2) high surface roughness (on the order of 2μm RMS); (3) layer-to-layer misa

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Rozprawy doktorskie na temat "EMI shield layer"

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Choudhary, Harish Kumar. "Mechanistic Insights for Controlling Electromagnetic Interference Shielding Through Microwave Absorption in Magnetic Composites." Thesis, 2019. https://etd.iisc.ac.in/handle/2005/5167.

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Extensive use of electronic devices in daily communication and information technology causes high (microwave) frequency electromagnetic interference (EMI). This EMI often leads to noise, data misinterpretation or malfunctioning of electronic devices such as medical equipment. To protect the device from this unwanted EMI, a shield layer is essential, which can shield the device from the unwanted radiation via either reflection or absorption. As the reflected microwave may cause further EMI, the later phenomenon is advantageous, because it forbids any further interference with neighboring device

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Części książek na temat "EMI shield layer"

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Răzvan Rădulescu, Ion, Lilioara Surdu, Emilia Visileanu, Bogdana Mitu, and Cristian Morari. "Life Cycle Assessment of Flexible Electromagnetic Shields." In Electromagnetic Compatibility [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.99772.

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Nowadays, fiber based flexible electromagnetic shields have widespread applications in ensuring Electromagnetic Compatibility (EMC). Shielding is a solution of EMC, and the main methods to estimate shielding effectiveness are represented by the circuit method and the impedance method. Magnetron sputtering of metallic layers represents a novel technique to impart electric conductive properties to fabrics. Coating of fabrics represents a second main option to manufacture textile shields beside the insertion of conductive yarns in the fabric structure. Life Cycle Assessment (LCA) is often used to assess a comparatively modern with a classical manufacturing process in order to prove its eco-friendly character. This chapter comparatively assesses flexible EM shields manufactured of fabrics with inserted conductive yarns with and without magnetron plasma coating. The copper plasma coating of cotton fabrics with inserted silver yarns increases shielding effectiveness (EMSE) by 8–10 dB. In order to keep for the LCA study the same functional unit of 50 dB at 100 MHz for one sqm of fabric, the fabric structure is modeled with a reduced distance between the inserted conductive yarns. Results of the LCA study show a substantial impact on the environment for the plasma coated fabric upon using a laboratory scale deposition set-up.

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Streszczenia konferencji na temat "EMI shield layer"

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Tehrani, Mehran, Ayoub Y. Boroujeni, Majid Manteghi, Zhixian Zhou, and Marwan Al-Haik. "Integration of Carbon Nanotubes Into a Fiberglass Reinforced Polymer Composite and its Effects on Electromagnetic Shielding and Mechanical Properties." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-65202.

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Electromagnetic (EM) waves, such as electronic noise and radio frequency interference can be regarded as an invisible electronic pollution which justifies a very active quest for effective electromagnetic interference (EMI) shielding materials. Highly conductive materials of adequate thickness are the primary solutions to shield against EMI. Equipment cases and basic structure of space aircraft and launch vehicles have traditionally been made of aluminum, steel and other electrically conductive metals. However, in recent years composite materials have been used for electronic equipment manufac

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Reif, Manuel, Jana Gebauer, Alexander Paul, Christiane Rothe, and Andrés Fabián Lasagni. "Functionalization of Fiber-Reinforced Thermoplastics for EMF-Shielding Applications." In ITSC 2023. ASM International, 2023. http://dx.doi.org/10.31399/asm.cp.itsc2023p0330.

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Abstract With an increasing demand for lower fuel consumption of different means of transportation, the demand for lightweight construction materials is rising. In this frame, usually metallic parts can be replaced by components consisting of fiberreinforced plastics. On the other hand, the components lose their electromagnetic field (EMF) shielding properties, which are required for many applications such as housings for electrical components. This issue can be solved by applying electrically conductive foils or meshes, often by a manual process that increases the time of production and proce

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Ziaja, Jan, Mariusz Ozimek, and Joanna Koprowska. "Metallic and oxide Zn and Ti layers on unwoven fabric as shields for electromagnetic fields." In 2009 EMC Europe Workshop Materials in Applications (EMC Europe Workshop). IEEE, 2009. http://dx.doi.org/10.1109/emceurope.2009.5189691.

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Cruciani, S., T. Campi, M. Feliziani, and F. Maradei. "Application of the artificial material single layer (AMSL) method to assess the magnetic field generated by a WPT system with shield." In 2018 IEEE International Symposium on Electromagnetic Compatibility and 2018 IEEE Asia-Pacific Symposium on Electromagnetic Compatibility (EMC/APEMC). IEEE, 2018. http://dx.doi.org/10.1109/isemc.2018.8393743.

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