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Multilayered ceramic elements

A multi-layer ceramic and component technology, which is applied in the direction of electrical components, laminated capacitors, fixed capacitor parts, etc., can solve the problems of MLCC reliability reduction and other issues

Inactive Publication Date: 2013-11-13
SAMSUNG ELECTRO MECHANICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the thickness of the dielectric layer is reduced, there is a limit because the reliability of MLCC may be reduced.

Method used

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  • Multilayered ceramic elements
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  • Multilayered ceramic elements

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Experimental program
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Embodiment

[0084] Examples and Comparative Examples

[0085] As shown in Table 1 below, multilayer electronic components (MLCCs) were fabricated while changing each composition, particle size, and content. Ultra-high capacity MLCCs (with a dielectric thickness of 0.5 μm or less and an internal electrode of 0.3 μm).

[0086] In addition, the capacitance and reliability of the fabricated ultra-high capacitance MLCCs were measured with breakdown voltage (BDV) accelerated lifetime, and the results are shown in Table 1 below.

[0087] [Table 1]

[0088]

[0089] As is clear from the results in Table 1, when the average particle size of the inhibitor included in the inner electrode layer has a size within about 30% of the average particle size of the dielectric-based metal included in the dielectric layer and the addition of the inhibitor When the amount is comprised between 3 and 12 wt% with respect to the weight of the nickel metal powder, the growth capacitance of the dielectric par...

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Abstract

Disclose herein are multilayered ceramic elements having a structure in which an inner electrode layer and a dielectric layer are alternately multilayered, wherein the inner electrode layer may include inhibitors in the amount of 3 to 12 wt % with respect to a weight of metal powders, and an average particle size of the inhibitors may have a size of about 30% with respect to an average particle size of dielectric base metals. According to the exemplary embodiments of the present invention, it is possible to manufacture the elements with excellent reliability by increasing the capacity of the multilayered ceramic elements by controlling the particle size and the added quantity of the inhibitors included in the inner electrode layers that is squeezed out during firing at high temperature.

Description

[0001] References to related applications [0002] This application claims the benefit under 35 U.S.C. Section 119 of Korean Patent Application Serial No. 10-2012-0048609, filed May 8, 2012, entitled "Multilayer Ceramic Element," the entire contents of which are hereby incorporated by reference incorporated into this application. technical field [0003] The present invention relates to a multilayer ceramic element having excellent capacitance characteristics and high reliability. Background technique [0004] Multilayer ceramic capacitors (hereinafter referred to as MLCC) are manufactured by forming electrode layers by printing a conductive paste on the formed dielectric layer sheet using a screen, gravure, etc., thereby printing internal electrode layers and multiple layers of internal electrode layers printed thereon layer flakes. [0005] In this case, the conductive paste used is composed of metal powders (such as nickel (Ni), copper (Cu), etc.), inorganic substances ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G4/12H01G4/30H01G4/008
CPCH01G4/12H01G4/0085H01G4/30
Inventor 李承浩金钟翰金应洙
Owner SAMSUNG ELECTRO MECHANICS CO LTD