Conductive pasty material, method for controlling its viscosity and electronic component using same

A technology of conductive paste and electronic components, applied in the direction of conductive materials dispersed in non-conductive inorganic materials, parts of fixed capacitors, conductive coatings, etc., can solve problems such as yield decline

Inactive Publication Date: 2002-10-02
MURATA MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, defects (such as short-circuit defects) are generated in electronic parts including electrodes made of the above-mentioned conductive paste, thereby reducing yield

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] 20 parts by weight of ethyl cellulose resin was added to 80 parts by weight of terpineol, and the resulting mixture was mixed with a stirrer to prepare an organic vehicle.

[0059] Mix 50 parts by weight of an organic vehicle and 50 parts by weight of a commercially available conductive powder (made of metal powder, particle size 0.1 mm), and disperse them uniformly with a three-roll mill to prepare a primary paste slurry.

[0060] 100 parts by weight of the primary paste slurry prepared above and 1 part by weight of N, N', N'-tris(2-hydroxyethyl)-N-alkyl-1,3-diaminopropane as a material (which has a tertiary amine structure and is dissolved in the above-mentioned organic vehicle) were mixed together to prepare a conductive paste (sample 1).

Embodiment 2

[0062] A primary paste slurry was prepared in a manner similar to that of Example 1 above. 100 parts by weight of this primary paste slurry was mixed with 1 part by weight of benzotriazole (which has a nitrogen-containing but sulfur-free heterocyclic structure, which is soluble in the organic vehicle) as a material, A conductive paste (sample 2) was prepared.

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Abstract

A conductive paste having a desired viscosity that does not change with time and having a stable viscosity characteristic, and an electronic component formed using the conductive paste. The conductive paste includes conductive powder, an organic vehicle, and at least one compound selected from the group consisting of a compound having a tertiary amine structure and being soluble in the organic vehicle, and a heterocyclic structure containing nitrogen but not containing sulfur and being soluble in the organic vehicle. Compounds dissolved in the organic vehicle.

Description

field of invention [0001] The present invention relates to a conductive paste for forming electrodes of electronic components, a method of controlling the viscosity of the conductive paste, and to electronic components containing electrodes formed using the conductive paste. background of the invention [0002] For the manufacture of electronic parts (such as monolithic capacitors and ceramic multilayer substrates), an example of a method of forming electrodes is to use a conductive paste containing Pt, Ag, Ni, Cu, Al, W, etc. And so made the component part, and heat treatment, made the electrode. [0003] In the case of forming an electrode of an electronic component using the above-mentioned method, in order to miniaturize the electronic component and achieve high precision, it is necessary to apply a uniform and thin coating of conductive paste to the element portion in a manufacturing step. Therefore, it is necessary to use a conductive paste having a desired viscosity ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K1/09H01B1/22H01G4/008H01G4/12H05K3/46
CPCH01B1/22H01G4/0085H05K1/092H01G4/008
Inventor 栗原弘幸中村一郎小仓丈承清水基寻
Owner MURATA MFG CO LTD
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