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Method for preparing nickel-containing silver electrode slurry

A technology of silver electrodes and pastes, which is applied to conductive materials dispersed in non-conductive inorganic materials, cable/conductor manufacturing, circuits, etc., can solve the problems of rare reports on silver electrode pastes at room temperature, and achieve environmental protection. Cost reduction, smooth surface effect

Inactive Publication Date: 2010-11-03
IRICO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In view of the above reasons, it is urgent to develop room temperature silver electrode paste suitable for new substrate materials, but there are few reports on room temperature silver electrode paste at present.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025]Embodiment 1: first the superfine nickel powder of 35 grams is joined in the propylene glycol methyl ether acetate of 28 grams, the spherical silver powder of 36 grams is joined in the ethylene glycol benzyl acetate of 26 grams at first by quality, 55 grams Add flaky silver powder into 36 propylene glycol methyl ether acetate, then add 6.5 grams of dispersant RENTANL, and mix well to obtain the dilute mixture of the above three powders; then heat at a constant temperature at 70°C 4 grams of methylcellulose and 2 grams of polyurethane resin are dissolved in 45 grams of terpineol by quality, and are filtered to obtain an organic vehicle; finally the mixed solution of 15 grams of superfine nickel powder and propylene glycol methyl ether acetate, The mixed solution of 6 grams of spherical silver powder and ethylene glycol benzyl acetate, the mixed solution of 15 grams of flake silver powder and propylene glycol methyl ether acetate are added to the above-mentioned organic car...

Embodiment 2

[0026] Embodiment 2: at first the superfine nickel powder of 25 grams is joined in the ethylene glycol benzyl acetate of 38 grams, the spherical silver powder of 31 grams is joined in the terpineol of 28 grams respectively by mass, the sheet of 45 grams Add silver powder into 48 ethylene glycol benzyl acetate, then add 5.5 grams of dispersant Reotan LAM, and mix well to obtain a thin mixture of the above three powders; Heating at constant temperature dissolves 5 grams of polyurethane resin and 3 grams of ethylene glycol ethyl ether acetate into 40 grams of ethylene glycol benzyl acetate by mass, and obtains an organic carrier through filtration; finally 16 grams of ultrafine nickel powder and The mixed solution of ethylene glycol benzyl acetate, the mixed solution of 8 grams of spherical silver powder and ethylene glycol benzyl acetate, the mixed solution of 24 grams of flake silver powder and ethylene glycol benzyl acetate are added successively Add 1.5 grams of antifoaming a...

Embodiment 3

[0027] Embodiment 3: first the superfine nickel powder of 45 grams is joined in the terpineol of 48 grams, the spherical silver powder of 36 grams is joined in the terpineol of 29 grams, the flaky silver powder of 45 grams is joined in 33 grams respectively by quality Add 5.5 grams of dispersant Polysperse 7 to the propylene glycol methyl ether acetate, and mix them evenly to obtain the dilute mixture of the above three powders; Polyurethane resin and 5 grams of ethylene glycol ether acetate are dissolved in 36 grams of propylene glycol methyl ether acetate, and obtain organic vehicle through filtration; Finally the mixed solution of 7.5 grams of superfine nickel powder and terpineol, 8.5 grams of spherical The mixed solution of silver powder and terpineol, the mixed solution of 26 grams of flake silver powder and propylene glycol methyl ether acetate join in the above-mentioned organic carrier successively, add the defoamer 4 of 3.5 grams, 4-diaminodiphenylmethane and 1 The t...

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PUM

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Abstract

The invention discloses a method for preparing nickel-containing silver electrode slurry, which comprises the following steps: (1) preparing silver-nickel mixed liquid; (2) preparing an organic carrier; and (3) preparing the nickel-containing silver electrode slurry. In the method, nickel powder, spherical silver powder and flaky silver powder form the conductive functional phase of the electrode slurry; and the electrical performance of the finally prepared silver electrode slurry can be regulated by changing the addition proportion of the nickel powder; the silver electrode slurry does not contain high-temperature melting compounds, so the silver electrode slurry is not harmful in the slurry producing and processing process, and is advantageous to environmental protection, energy conservation and exhaust reduction. Furthermore, the silver electrode slurry contains the nickel powder and other components, which have low cost, thus being favor for reducing the cost of the silver electrode slurry, and according with the megatrend of modern society development.

Description

technical field [0001] The invention relates to a method for preparing silver electrode paste in electronic paste, which belongs to the field of microelectronic connection materials, in particular to a method for preparing silver electrode paste containing nickel by using silver powder and nickel powder. The silver electrode paste obtained by the method is The electrode paste has low price, adjustable electrical properties, and can replace part of the silver-palladium electrode paste for civil electronic products and integrated circuit fields. Background technique [0002] With the rapid development of science and technology, industrial and civil electronic products are getting closer to people's daily life. As an indispensable raw material in electronic products, the demand for electronic paste in electronic products is increasing, which also prompts The rapid development of the electronic paste industry in recent years, on the other hand, the miniaturization, integration, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B1/22H01B13/00
Inventor 张宇阳
Owner IRICO
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