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| MULTI-LAYER CERAMIC CAPACITORS AND ADVANCED CERAMIC SOLUTIONS |
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Multi-Layer Ceramic Capacitors are found by the hundreds in cell phones, mp3 players, computers and other electronic products. For decoupling applications, in order to store large amounts of energy in a very small product, Multi-Layer Ceramic Capacitors (MLCC) are made with advanced ceramic powders. Many of these powders are based upon barium titanate but often include carefully controlled levels of specific elements to enhance dielectric constant, minimize dielectric loss or reduce variation with temperature and bias voltage. Oxide powders can be prepared by various methods including hydrothermal, emulsion, coprecipitation, mixed oxide and sol-gel. In all of these methods, particle size distribution has an important impact on the MLCC's processing and performance. Particle Size: A Critical Parameter While the chemical composition of the ceramic has a key effect on the electrical performance, particle size plays a critical role on the processing and performance of the MLCC. It is critical that the metal oxide nanopowder have a very narrow particle size distribution so that each layer of the capacitor can be made reproducibly thin and defect free. Presence even a small number of large particles in a layer can affect the reliability of the whole capacitor. Moreover, too many fine particles could cause issues in the firing conditions during the MLCC processing. Avanta AC™ Advanced Ceramics: The Solution SACHEM offers a new route to improved properties in advanced ceramic applications. Avanta AC™ Ceramics Solutions deliver unique advantages over inorganic compounds in the manufacture of advanced ceramic nanopowders. Find more information with SACHEM's white papers here. Among a variety of potential production methods, solution-based chemical methods represent cost-effective and efficient methods of manufacturing nanopowders. SACHEM's Avanta AC™ Products can increase the manufacturing performance of these well established manufacturing methods, with improvements in:
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