Multilayer ceramic capacitor

A technology of multilayer ceramics and capacitors, applied in the field of capacitors, can solve the problems of increased electric field concentration, breakdown and burnout of multilayer ceramic capacitors, etc., and achieve the effects of reducing electric field concentration, good voltage resistance performance, and eliminating charge concentration

Pending Publication Date: 2022-05-06
GUANGDONG FENGHUA ADVANCED TECH HLDG
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 i

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Multilayer ceramic capacitor
  • Multilayer ceramic capacitor
  • Multilayer ceramic capacitor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Please refer to Figure 3-Figure 5 , a multilayer ceramic capacitor in a preferred embodiment of the embodiment of the present invention includes a ceramic body 1 and terminal electrodes 2 disposed 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. surface 15 and two side surfaces 17, and the ends of the two terminal electrodes 2 are arranged oppositely with a distance between them, the ceramic body 1 also includes an internal electrode 11, a dielectric layer 12 and an additional electrode 13, the internal electrodes 11 are arranged in parallel and A dielectric layer 12 is arranged between two adjacent internal electrodes 11, and the additional electrodes 13 are arranged at both ends of the side surfaces 17 of the ceramic body 1, and the additional electrodes 13 are exposed on the side surfaces 17 of the ceramic body 1, and the additional electrodes 13 and The term...

Embodiment 2

[0063] The difference between the multilayer ceramic capacitor provided in Embodiment 2 and Embodiment 1 is that please refer to Image 6 , the end of the additional electrode 13 is semicircular in the downward cross-section, and the connection between one end of the additional electrode 13 and the terminal electrode 2 is located at the end surface 16 of the ceramic body 1 .

Embodiment 3

[0065] The difference between the multilayer ceramic capacitor provided in the third embodiment and the first embodiment is that please refer to Figure 7 , the additional electrode 13 is not connected to the two end surfaces 16, and the two ends of the additional electrode 13 are arc-shaped.

[0066] To sum up, the embodiment of the present invention provides a multilayer ceramic capacitor, which provides an additional electrode 13 between the end of the terminal electrode 2 and the end of the internal electrode 11, and the surface of the additional electrode 13 facing the internal electrode 11 is a curved surface, eliminating the need for terminal The charge concentration at the end of the electrode 2 can significantly reduce the electric field concentration, even if the area of ​​the internal electrode 11 is increased to obtain a high capacitance so that the distance between the end of the internal electrode 11 and the end of the terminal electrode 2 is reduced, it can ensur...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Lengthaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to view more

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...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H01G4/30H01G4/12H01G4/005
CPCH01G4/30H01G4/12H01G4/005
Inventor 陆亨樊辉红刘伟峰卓金丽何彦颖
Owner GUANGDONG FENGHUA ADVANCED TECH HLDG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products