Xem 1-12 trên 12 kết quả Electronic ceramics
  • As we all know, ceramic materials are inorganic, non-metallic, solid, and inert materials. Things are made from them by the action of heat and subsequent cooling, which may be crystalline or partly crystalline. The definition of ceramic is often restricted to inorganic crystalline materials, as opposed to the noncrystalline glasses, which involve several steps of the ceramic process, and their mechanical properties behave similarly to ceramic materials.

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  • Sintering is one of the final stages of ceramics fabrication and is used to increase the strength of the compacted material. In the Sintering of Ceramics section, the fabrication of electronic ceramics and glass-ceramics were presented. Especially dielectric properties were focused on. In other chapters, sintering behaviour of ceramic tiles and nano-alumina were investigated. Apart from oxides, the sintering of non-oxide ceramics was examined.

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  • As with micromachining processes, many MEMS sensor-packaging techniques are the same as, or derived from, those used in the semiconductor industry. However, the mechanical requirements for a sensor package are typically much more stringent than for purely microelectronic devices. Microelectronic packages are often generic with plastic, ceramic, or metal packages being suitable for the vast majority of IC applications.

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  • A one-stop Desk Reference, for engineers involved in the use of engineered materials across engineering and electronics; this is a book that will not gather dust on the shelf. It brings together the essential professional reference content from leading international contributors in the field. Material ranges from basic to advanced topics including materials and process selection; and explanations of properties of metals, ceramics, plastics and composites

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  • Materials are evolving today faster than at any time in history. Industrial nations regard the development of new and improved materials as an “underpinning technology” – one which can stimulate innovation in all branches of engineering, making possible new designs for structures, appliances, engines, electrical and electronic devices, processing and energy conservation equipment, and much more.

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  • Crystallization is one of the most ancient and interdisciplinary topics of research known to mankind. Crystals can be organic or inorganic and may be produced from melts, liquid solutions, vapors or even in solid state. Notwithstanding its inherently high complexity, the crystallization process is part of our everyday lives, from ice making in our homes to the most state-of-the-art chemical and electronic industry.

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  • Due to the widespread use of ceramic coatings, several synthesis techniques have been developed in recent decades. The majority of these techniques, such as chemical vapor deposition (CVD) and physical vapor deposition (PVD) and their variants, are focused on the synthesis of flat coatings. Recently, the preceramic polymeric synthesis route has offered the possibility to impregnate preceramic materials into porous matrices prior to pyrolysis in order to create coated or composite materials This technique, however, leads to pore filling and alterations of the original substrate texture....

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  • This book collects original and innovative research studies concerning modeling and simulation of physical systems in a very wide range of applications, encompassing micro-electro-mechanical systems, measurement instrumentations, catalytic reactors, biomechanical applications, biological and chemical sensors, magnetosensitive materials, silicon photonic devices, electronic devices, optical fibers, electro-microfluidic systems, composite materials, fuel cells, indoor air-conditioning systems, active magnetic levitation systems and more.

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  • Multilayer ceramic capacitors (MLCC) are indispensable electronic components for advanced electronic technology2-12, but larger capacity and smaller size are needed for future electronic devices. To meet these needs, BaTiO3 particles were downsized, but ferroelectric ceramics lose their ferroelectricity when their particle size is decreased and lose ferroelectricity entirely at a critical size2-11. This is known as the size effect and it impedes the progress of MLCC, so a novel solution has been eagerly anticipated....

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  • CHAPTER 16 ELECTRONIC PACKAGING Warren C. Fackler, RE. Telesis Systems, Inc. Cedar Rapids, Iowa 16.1 INTRODUCTION 16.1.1 Scope 16.1.2 Overview 16.1.3 Design Techniques COMPONENT MOUNTING 16.2.1 General 16.2.2 Specific Components 16.2.3 Discrete Components 16.2.4 Printed Circuit Board Components FASTENINGANDJOINING 16.3.1 General 16.3.2 Mechanical Fastening 16.3.3 Welding and Soldering 16.3.4 Adhesives INTERCONNECTION 16.4.1 General 16.4.2 Discrete Wiring 16.4.3 Board Level 16.4.4 Intramodule 16.4.5 Intermodule 16.4.6 Interequipment 16.4.7 Fiber-Optic Connections MATERIALSSELECTION 16.5.

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  • Engineering of nanophase materials and devices is of vital interest in electronics, semiconductors and optics, catalysis, ceramics and magnetism. Research associated with nanoparticles has widely spread and diffused into every field of scientific research, forming a trend of nanocrystal engineered materials.

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  • Porous hydroxyapatite ceramic was synthesized by solid phase method using Ca(OH)2 and Ca3(PO4)2 at the temperature interval 200 - 350o C. The samples, after pelleting and sintering, were characterized by X-ray diffractometry (XRD), Fourier transform infra-red spectroscopy (FTIR), scanning electron microscopy (SEM) and thermal gravimetric analysis (TGA). Porous structure of hydroxyapatite was obtained with the 42 – 55% porosity.

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