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Nickel paste

A technology of nickel paste and powder, which is applied in the field of nickel paste, and can solve the problems of cracks, lack of film thickness and shape, etc.

Inactive Publication Date: 2009-02-04
NORITAKE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, if the viscosity of the paste changes, the appropriate film thickness and shape cannot be obtained during printing, or cracks will occur after firing, causing various problems in the manufacturing process.

Method used

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Examples

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Embodiment Construction

[0040] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. Furthermore, the drawings in the following embodiments have been appropriately simplified or distorted, and the dimensional ratios and shapes of various parts may not be accurately depicted.

[0041] The following Tables 1-3 are the tables which put together the preparation state of the nickel paste of Examples 1-3 of this invention, and the evaluation result of stability, and Comparative Examples 1-3. The nickel paste, for example in the manufacture of the above-mentioned figure 1 In the case of the MLCC 10 shown, it is used to form the conductor layer 14 thereof. The dielectric layer 12 of the MLCC 10 is, for example, a layer made of barium titanate, and its thickness before firing is, for example, about 3 μm.

[0042] Table 1

[0043]

[0044] Table 2

[0045]

[0046] table 3

[0047]

[0048] In the above-mentioned Tables 1 to 3, "Ni powder"...

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Abstract

Nickel paste includes nickel powder, a resin binder and an organic solvent. This provides the nickel paste that the change in viscosity due to sulfur included in the paste can be preferably restrained by using nickel powder including extremely small amount of sulfur. Limitation of sulfur to the extremely small amount causes superior stability, and then, since kinds of solvents and resin binders are not limited, the change in viscosity can be preferably restrained with using the solvent that is hard to cause the chemical attack on the green sheet as described above. Thus, nickel paste that is hard to cause the chemical attack and the change in viscosity can be provided.

Description

technical field [0001] The present invention relates to a nickel paste suitable for forming internal electrodes and the like of a multilayer ceramic capacitor (Multi Layer Ceramic Capacitor: MLCC). Background technique [0002] in manufacturing for example figure 1 In the case of the MLCC 10 schematically showing the cross-sectional structure, a conductive material containing a heat-resistant metal as a conductive component is used on the surface of an unfired ceramic green sheet (green sheet) constituting its dielectric layer 12 . For the paste, a conductive paste layer is formed by thick-film screen printing, laminated and bonded in multiple sheets, and then subjected to firing treatment, whereby the dielectric layer 12 is formed from the green sheet, and the conductive paste is formed. Layer generation Conductor layer 14 constituting the internal electrodes. Furthermore, 16 in the figure is an external electrode for passing electricity to the internal electrode (conduct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B1/22H01B1/02H01G4/008H01G4/232H01G4/30H01G13/00
CPCH01B1/22H01B1/02
Inventor 杉山勤
Owner NORITAKE CO LTD
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