Multilayer ceramic capacitor

Abstract

The invention relates to the technical field of capacitors, and discloses a multilayer ceramic capacitor which comprises a ceramic body and end electrodes arranged on the two end faces of the ceramic body, the ceramic body further comprises inner electrodes, dielectric layers and additional electrodes, the inner electrodes are arranged in parallel, and the dielectric layers are arranged between every two adjacent inner electrodes. The additional electrodes are arranged at the two ends of the side face of the ceramic body and exposed on the side face of the ceramic body, the additional electrodes are connected with the end electrodes, a distance exists between the additional electrodes and the inner electrodes, the additional electrodes are located between the tail ends of the inner electrodes and the tail ends of the end electrodes located on the side face of the ceramic body, and the faces, facing the inner electrodes, of the additional electrodes are curved faces. According to the multilayer ceramic capacitor, the additional electrode is arranged between the tail end of the end electrode and the tail end of the inner electrode, the surface, facing the inner electrode, of the additional electrode is a curved surface, charge concentration at the tail end of the end electrode is eliminated, and electric field concentration can be remarkably reduced.

Description

technical field [0001] The invention relates to the technical field of capacitors, in particular to a multilayer ceramic capacitor. Background technique [0002] Please refer to figure 1 with figure 2 , is a cross-sectional view of a multilayer ceramic capacitor in the prior art. Terminal electrodes 2' are provided on both end surfaces 16' of the ceramic body 1', and the terminal electrodes 2' also extend to the upper surface 14' and the lower surface of the ceramic body 1'. 15' and two side surfaces 17', the terminal electrode 2' extends to the upper and lower surfaces of the ceramic body and the end of the side is marked as the end of the terminal electrode 2', and the ceramic body includes a plurality of interlayers stacked along the thickness direction of the ceramic body. The electrical layer 12' and the internal electrode 11' disposed between two adjacent dielectric layers 12', the end of the internal electrode 11' away from the end surface connected to it is marked...

AI Technical Summary

Problems solved by technology

The end electrodes respectively extend to the ends of the upper and lower surfaces of the ceramic body, and due to the rheology of the electrode slurry affected by gravity, a pointed shape will be formed at the end, and the pointed shape faces the direction where the internal electrode is located, and is also oblique to the end of the internal electrode. Correspondingly, this leads to the intensification of the concentration of the electric field here, and the multilayer ceramic capacitor has the risk of being broken down and burned

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