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Multilayer Ceramic Capacitors

A technology of multilayer ceramics and capacitors, applied in the direction of multilayer capacitors, capacitors, fixed capacitors, etc., can solve problems such as reliability deterioration

Active Publication Date: 2021-03-09
SAMSUNG ELECTRO MECHANICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Specifically, moisture-proof characteristics become important because moisture penetration affects defects and reliability degradation of multilayer ceramic capacitors

Method used

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  • Multilayer Ceramic Capacitors
  • Multilayer Ceramic Capacitors
  • Multilayer Ceramic Capacitors

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] Hereinafter, exemplary embodiments in the present disclosure will be described in detail with reference to the accompanying drawings.

[0016] figure 1 is a perspective view of a multilayer ceramic capacitor according to an exemplary embodiment in the present disclosure. figure 2 is along figure 1 The cross-sectional view taken on the line II' in, and image 3 is along figure 1 A cross-sectional view taken along line II-II' in . Figure 4 yes image 3 Magnified view of region "B" in .

[0017] refer to Figure 1 to Figure 4 , the multilayer ceramic capacitor 100 according to an exemplary embodiment may include a ceramic body 110 , a plurality of first and second internal electrodes 121 and 122 disposed in the ceramic body 110 , and a first electrode disposed on an outer surface of the ceramic body 110 . An external electrode 131 and a second external electrode 132 .

[0018] The ceramic body 110 may have a first surface 1 and a second surface 2 disposed to face...

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Abstract

The present invention provides a multilayer ceramic capacitor. The multilayer ceramic capacitor includes: a ceramic body including a dielectric layer and a first internal electrode and a second internal electrode, and the first internal electrode and the second internal electrode are arranged facing each other, and each of the dielectric layers is interposed between the first internal electrode and the second internal electrode; and a first external electrode and a second external electrode, disposed on the ceramic body and are electrically connected to the first internal electrode and the second internal electrode, respectively. The ceramic body includes an effective portion in which a capacitance is formed, and cover portions disposed above and below the effective portion. Each of the cover portions includes a first region adjacent to an outer surface of the ceramic body and a second region adjacent to an outermost internal electrode and disposed between the first region and the effective portion. area. The dielectric material included in the second region has a higher density than the dielectric material included in the first region.

Description

[0001] This application claims the benefit of priority from Korean Patent Application No. 10-2018-0117768 filed with the Korean Intellectual Property Office on October 2, 2018, the disclosure of which is hereby incorporated by reference in its entirety. technical field [0002] The present disclosure relates to a multilayer ceramic capacitor with improved reliability. Background technique [0003] In general, electronic components using ceramic materials (such as capacitors, inductors, piezoelectric elements, varistors, thermistors, etc.) include a ceramic body formed of a ceramic material, internal electrodes provided in the ceramic body, and internal electrodes provided in the ceramic body. surface to connect the outer electrodes to the inner electrodes. [0004] Recently, in accordance with miniaturization and multifunctionalization of electronic products, multilayer ceramic electronic components have also tended to be miniaturized and multifunctional. Therefore, a multi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G4/12H01G4/242H01G4/30
CPCH01G4/242H01G4/30H01G4/1209H01G4/012H01G4/1227H01G4/224H01G4/2325H01G4/232H01G4/248
Inventor 权亨纯车炅津赵志弘
Owner SAMSUNG ELECTRO MECHANICS CO LTD