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Showing 1 to 8 of 8 for “"Multilayer Ceramic Capacitors"”.
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Breakdown in high voltage, high energy density multilayer ceramic capacitors
… in high voltage, high energy density, BaTiO₃ multilayer ceramic capacitors were studied. The flexural strength of the capacitors was 96 +/- 13 MPa. Failure was due to surface defects or pores close to the surfaces of the samples. The dielectric breakdown strength of the samples was 181 kV/cm. …
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Intrinsic degradation mechanisms of barium titanate based multilayer ceramic capacitors
… intrinsic degradation behavior of X7R and Z5U capacitors. The major goals of this research were: 1) to determine current-voltage, activation energy and leakage current characteristics for such capacitors. 2) to investigate how these characteristics change with degradation; 3) to investigate …
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Electrical conduction transport mechanisms of barium titanate- based multilayer ceramic capacitors
… electrical conduction properties of BaTiO3-based multilayer ceramic ( MLC ) capacitors in order to gain a better understanding of the conduction transport mechanisms inside the devices. The experiments involved mainly leakage current versus time measurements under both low temperature-low voltage …
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Impedance characteristics and grain boundary effects in titanate-based multilayer ceramic capacitors
… that grain boundaries have on conduction in multilayer ceramic (MLC) capacitors. Electrical measurements were made so that current-voltage curves and impedance plots could be constructed. It was found that the current-voltage curves of new COG and X7R multilayer ceramic capacitors are both …
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Flex Cracking and Temperature-Humidity-Bias Effects on Reliability of Multilayer Ceramic Capacitors
Multilayer ceramic capacitors (MLCCs) are known to be susceptible to cracking when subjected to excessive printed circuit board (PCB) flexure, which is called "flex cracking". The bending of the printed circuit board causes stresses to be transmitted through the solder fillets to the surface mount …
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Effects of a combined supercritical extraction/thermal cycle on binder removal cycle time, yield, residual carbon, and defect formation in multilayer ceramic capacitors
… cycle (TC), was used to remove binder from green multilayer ceramic capacitors. The dielectric was barium titanate and the binder consisted of poly(vinyl butyral) plasticized with phthalates. Supercritical extraction of approximately one-third of the binder leads to an increase in the porosity and …
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Synthesis-Structure-Property Relationships in Lead-Free Piezoelectric Materials
… agencies across the globe. In the functional ceramics community, currently there is no problem more important than to find a replacement for lead-based piezoelectrics used for actuators. The electromechanical properties required for actuators (high piezoelectric constant, high coupling factor, …
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High-density multilevel power converters for use in renewable and transportation applications
… energy-dense electrolytic or low-loss film-based capacitors, designers now have an increasing array of high-energy-density ceramic capacitors available to them. In addition to the small signal characteristics of these devices which are typically provided by the manufacturer, designers need to …