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Thick film nanometer gold electrode slurry and preparation method thereof

A nano-gold electrode and nano-gold technology, which is applied in the direction of conductive materials, conductive materials, conductive materials dispersed in non-conductive inorganic materials, etc., can solve problems such as rarely seen nano-gold powder, and achieve the effect of performance improvement

Inactive Publication Date: 2009-05-20
IRICO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is rare to see the report of the slurry made of nano-gold powder

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] A thick-film lead-free nano-gold electrode slurry is composed of an inorganic part and an organic part. The inorganic part includes: noble metal nano-gold powder, lead-free glass powder and other necessary inorganic additives; the organic part is an organic solvent carrier. Its specific preparation is completed according to the following process steps.

[0056] ① Preparation of lead-free glass powder;

[0057] Lead-free glass powder for SiO 2 -Al 2 o 3 -BaO-B 2 o 3 -Bi 2 o 3 -Na 2 O-based glass-ceramic powder, the weight percent of each component is silicon dioxide (SiO 2 ) is 34%, alumina (Al 2 o 3 ) is 9%, barium oxide (BaO) is 10%, boron oxide (B 2 o 3 ) is 21%, bismuth oxide (Bi 2 o 3 ) is 18%, sodium oxide (Na 2 O) is 5%, potassium oxide (K 2 O) is 3%.

[0058] The melting temperature is 1250°C, and the holding time is 100 minutes. After holding the heat, it is quickly quenched with pure water, and then crushed with a jet mill at high speed to pre...

Embodiment 2

[0073] A thick-film lead-free nano-gold electrode paste is specifically prepared according to the following process steps.

[0074] ① Preparation of lead-free glass powder;

[0075] Lead-free glass powder for SiO 2 -Al 2 o 3 -BaO-B 2 o 3 -Bi 2 o 3 -Na 2 O-based glass-ceramic powder, the weight percent of each component is silicon dioxide (SiO 2 ) is 32%, alumina (Al 2 o 3 ) is 8%, barium oxide (BaO) is 11%, boron oxide (B 2 o 3 ) is 25%, bismuth oxide (Bi 2 o 3 ) is 19%, sodium oxide (Na 2 O) is 3%, potassium oxide (K 2 O) is 2%.

[0076] The melting temperature is 1200°C, and the holding time is 110 minutes. After holding the heat, it is quickly quenched with pure water, and then crushed with a jet mill at high speed to prepare lead-free glass powder with a particle size of less than 2 μm.

[0077] ② Configuration of organic solvent carrier;

[0078] The weight percentages of each component of the organic solvent carrier are respectively: terpineol is 73%, e...

Embodiment 3

[0091] A thick-film lead-free nano-gold electrode paste is specifically prepared according to the following process steps.

[0092] ① Preparation of lead-free glass powder;

[0093] Lead-free glass powder for SiO 2 -Al 2 o 3 -BaO-B 2 o 3 -Bi 2 o 3 -Na 2 O-based glass-ceramic powder, the weight percent of each component is silicon dioxide (SiO 2 ) is 33%, alumina (Al 2 o 3 ) is 7.5%, barium oxide (BaO) is 12%, boron oxide (B 2 o 3 ) is 23%, bismuth oxide (Bi 2 o 3 ) is 17%, sodium oxide (Na 2 O) is 4%, potassium oxide (K 2 O) is 3.5%.

[0094] The melting temperature is 1200°C, and the holding time is 110 minutes. After holding the heat, it is quickly quenched with pure water, and then crushed with a jet mill at high speed to prepare lead-free glass powder with a particle size of less than 2 μm.

[0095] ② Configuration of organic solvent carrier;

[0096] The weight percentages of each component of the organic solvent carrier are respectively: terpineol is 72...

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Abstract

The invention relates to a lead-free thick film nanometer gold electrode slurry which selects nanometer gold powder as a main functional phase, in particular to a thick film nanometer gold electrode slurry and a method for preparing the same. The thick film nanometer gold electrode slurry is characterized by comprising the following components by weight portion: 60 to 90 portions of inorganic part and 40 to 10 portions of organic solvent, wherein the inorganic part comprises the following components by weight portion: 90 to 98 portions of noble metal nanometer gold powder, 2 to 10 portions of lead-free glass powder and 0 to 6 portions of inorganic additive; and the organic solvent comprises the following components by weight portion: 40 to 90 portions of terpineol, 4 to 10 portions of ethyl cellulose, 3 to 30 portions of ethyl caproate, 1 to 6 portions of nitro cellulose, 1 to 25 portions of triethanolamine, and 1 to 6 portions of sodium dodecylsulphonate. The invention changes the microstructure of the gold electrode slurry so as to change the conductivity, the printing performance and the connecting firmness of the slurry, thus the application of the gold electrode slurry to electronic parts and components, in particular high precision electronic parts and components is greatly expanded.

Description

technical field [0001] The invention relates to a lead-free thick-film nano-gold electrode slurry using nano-gold powder as the main functional phase, in particular to a thick-film nano-gold electrode slurry and a preparation method thereof. Background technique [0002] People's emphasis on environmental protection, the improvement of energy utilization efficiency, and the improvement of energy structure constitute an important part of my country's sustainable development strategy. In the microelectronics industry, electronic components are required to be small in size, high in power, low in power consumption, high in thermal efficiency, uniform in temperature field, good in workmanship, self-controlled in temperature, safe and reliable in operation, and long in life. It is long and has a wide range of adaptation, which requires a new microelectronics process preparation process that meets environmental protection requirements. The new preparation process requires new condu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B1/00H01B1/16H01B1/22
Inventor 张宇阳
Owner IRICO
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