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Multilayer capacitor

A technology of multilayer capacitors and internal electrodes, which is applied in the direction of laminated capacitors, capacitors, fixed capacitors, etc., and can solve problems such as difficult to improve electrical reliability and structural reliability

Pending Publication Date: 2022-05-06
SAMSUNG ELECTRO MECHANICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to improve electrical reliability and structural reliability as components become smaller

Method used

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  • Multilayer capacitor
  • Multilayer capacitor
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Examples

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Embodiment Construction

[0030] Exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings.

[0031] figure 1 is a perspective view schematically showing the appearance of a multilayer capacitor according to an exemplary embodiment in the present disclosure. figure 2 yes figure 1 A cross-sectional view of the multilayer capacitor taken along the line II'. image 3 yes figure 1 A cross-sectional view of a multilayer capacitor taken along line II-II', and Figure 4 yes image 3 A subdivision map of the subject area in . Figure 5 to Figure 8 The shape of the dielectric grains for each region of the body is shown.

[0032] refer to Figure 1 to Figure 3 , the multilayer capacitor 100 according to an exemplary embodiment of the present disclosure includes a body 110 and external electrodes 131 and 132, the body 110 includes a dielectric layer 111 and a plurality of internal electrodes 121 and 122, and the plurality of internal electr...

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Abstract

The present disclosure provides a multilayer capacitor. The multilayer capacitor includes: a body including a multilayer structure in which a plurality of internal electrodes are stacked in a first direction with the dielectric layer interposed therebetween; and an external electrode formed outside the main body and connected to the internal electrode. The main body includes an effective portion and a side edge portion covering a first surface and a second surface of the effective portion, the first surface and the second surface being opposed to each other in a second direction, and 1lt; a2 / M1 < = 1.5 and A2lt; a is an average grain size of the dielectric layer in a central region of the effective portion, A2 is an average grain size of the dielectric layer at an effective boundary portion of the effective portion adjacent to the side edge portion, and M1 is an average grain size of the dielectric layer in a central region of the side edge portion.

Description

[0001] This application claims the benefit of priority from Korean Patent Application No. 10-2020-0144401 filed in the Korean Intellectual Property Office on November 2, 2020, the disclosure of which is hereby incorporated by reference in its entirety. technical field [0002] The present disclosure relates to a multilayer capacitor. Background technique [0003] A capacitor is a device capable of storing electrical charge, usually accumulating in each of the two facing electrodes when a voltage is applied to it. When a direct current (DC) voltage is applied, current flows in the capacitor while charges are accumulated in the capacitor, and when the accumulation is complete, no current flows. Furthermore, when an alternating current (AC) voltage is applied, an AC current flows while the polarity of the electrodes alternates. [0004] Capacitors can be classified into various types such as: an aluminum electrolytic capacitor in which electrodes are formed using aluminum and ...

Claims

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Application Information

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IPC IPC(8): H01G4/12H01G4/30
CPCH01G4/1227H01G4/30H01G4/012H01G4/12H01G4/224H01G4/232C04B35/4682
Inventor 李济熹白承仁洪智秀张银河金亨旭朴宰成
Owner SAMSUNG ELECTRO MECHANICS CO LTD
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