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Multi-layer ceramic electronic parts and method for mfg. same

A technology of multilayer ceramics and electronic components, which is applied in fixed capacitance components, laminated capacitors, ceramic layered products, etc., and can solve problems such as damage to electrical characteristics, damage to soldering performance, electroplating Sn, and failure to fix.

Inactive Publication Date: 2005-04-13
TAIYO YUDEN KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, if a common material, that is, a ceramic material for forming the ceramic layer 7 is added to the conductive paste for forming the external electrodes 2 and 2, the adhesion between the external electrodes 2 and 2 and the internal electrodes 5 and 6 The connection characteristics deteriorate, that is, the connection resistance between the two becomes larger, which damages its electrical characteristics
In addition, it also destroys the soldering performance and the electroplating Sn
As a result, the solderability of the external electrodes 2 and 2 deteriorates, so when mounting multilayer ceramic electronic parts on a circuit board, non-fixation is likely to occur

Method used

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  • Multi-layer ceramic electronic parts and method for mfg. same
  • Multi-layer ceramic electronic parts and method for mfg. same
  • Multi-layer ceramic electronic parts and method for mfg. same

Examples

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Embodiment Construction

[0047] An example of a multilayer ceramic electronic component - a multilayer ceramic capacitor and its manufacturing method - is introduced here.

[0048] First, dielectric ceramic material particles such as barium titanate are dispersed in an organic binder (such as acryl, etc., acryl) that can be dissolved in a solvent such as ethanol, thereby preparing a ceramic slurry. The ceramic slurry is glued or thinly applied to a base film formed of polyethylene terephthalate or the like at a uniform thickness, and dried to form a film-type ceramic green sheet. Thereafter, the green sheet is cut to the appropriate size.

[0049] Next, if Figure 4 As shown, two kinds of internal electrodes 2a and 2b are printed on the cut ceramic green sheets 1a and 1b with a conductive paste. The conductive paste is obtained like this: add 100% by weight of a conductor particle selected from Ni, Cu, Ag, Pd, Ag-Pd, 3-12% by weight from ethylcellulose (ethylcellulose), propylene A binder selected ...

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Abstract

A multilayer ceramic electronic component comprising: a laminated body in which ceramic layers and internal electrodes are laminated to each other, and external electrodes provided at ends of the laminated body, wherein the respective internal electrodes facing each other reach the ceramic One of at least one pair of edges of the layer, so that the internal electrodes facing each other are respectively drawn out to one of the end faces of the laminated body, and the internal electrodes drawn out to the end faces of the laminated body are respectively connected to the external electrodes, wherein, The external electrodes are formed with columnar ceramic portions which are continuous in the thickness direction of the conductor film forming the external electrodes and are scattered inside the conductor film. Wherein, the material contained in the ceramic part is the same as the ceramic material forming the ceramic layer of the laminated body. The invention also provides a method for manufacturing a multilayer ceramic electronic component.

Description

technical field [0001] The present invention relates to a multilayer ceramic electronic component comprising a laminated body composed of an internal electrode pattern and a ceramic layer, the end of which is provided with an external electrode so as to be connected to the internal electrode, and more particularly, the present invention relates to a multilayer ceramic electronic A component and its manufacturing method, wherein the ceramic material used to form the ceramic layer of the laminate is applied to at least a part of the external electrode. Background technique [0002] Multilayer electronic components include multilayer capacitors, multilayer inductors, multilayer piezoelectric elements, multilayer filters, and ceramic multilayer circuit boards. [0003] For example, in the most representative laminated capacitor as such a laminated electronic component, many layers are stacked or laminated, each layer has an internal electrode, and each layer is formed of a diele...

Claims

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Application Information

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IPC IPC(8): H01G4/12B32B18/00H01G4/232H01G4/30
CPCB32B18/00H01G4/232Y10T29/42Y10T29/43Y10T29/435Y10T29/49126H01G4/30
Inventor 中村俊哉
Owner TAIYO YUDEN KK
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