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Conductor paste and preparation method thereof

A technology of conductive paste and flame retardant material, which is applied in the manufacture of cables/conductors, conductive materials dispersed in non-conductive inorganic materials, electrical components, etc. and other problems, to reduce the problem of tin beads, avoid the frequent occurrence of tin beads, and improve the overall performance.

Pending Publication Date: 2022-04-22
JIANGSU YUNYI ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, conductive pastes are mostly used on thick-film substrates, but the high content of silver in them leads to an increase in cost, but reducing the proportion of silver will lead to poor performance of conductive pastes, and traditional conductive pastes are also It is easy to have too many tin beads, leading to electrical failure and short circuit of components

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A conductive paste is composed of the following raw materials according to the concentration range:

[0026] 70% silver, 9.6% terpineol, 9.6% ethyl cellulose, 9% boron zinc sintered material, 0.9% copper oxide and 0.9% oleoyl sarcosine.

[0027] Then the above-mentioned prepared raw materials are prepared, including the following preparation steps:

[0028] 1) Mixing: Put silver, terpineol, ethyl cellulose, boron-zinc sintered material, copper oxide and oleoyl sarcosine into the mixer according to the above concentration range and mix them thoroughly. The mixing time is 20 minutes. During the mixing process, keep The mixer temperature is 80°C;

[0029] 2) Stand still: Take the mixture in step 1) out of the mixer, place it in a standing cylinder and let it stand at room temperature 25 degrees Celsius for 40 minutes;

[0030] 3) Distillation: Put the mixed liquid after standing still into the distillation machine for distillation, increase the distillation temperature d...

Embodiment 2

[0034] A conductive paste is composed of the following raw materials according to the concentration range:

[0035] Silver 83%, terpineol 5.1%, ethyl cellulose 5%, boron zinc sintered material 5.1%, copper oxide 0.9% and oleoyl sarcosine 0.9%.

[0036] Then the above-mentioned prepared raw materials are prepared, including the following preparation steps:

[0037] 1) Mixing: Put silver, terpineol, ethyl cellulose, boron-zinc sintered material, copper oxide and oleoyl sarcosine into the mixer according to the above concentration range and mix them thoroughly. The mixing time is 20 minutes. During the mixing process, keep The mixer temperature is 80°C;

[0038] 2) Stand still: Take the mixture in step 1) out of the mixer, place it in a standing cylinder and let it stand at room temperature 25 degrees Celsius for 40 minutes;

[0039] 3) Distillation: Put the mixed liquid after standing still into the distillation machine for distillation, increase the distillation temperature d...

Embodiment 3

[0043] A conductive paste is composed of the following raw materials according to the concentration range:

[0044] Silver 89%, terpineol 3.1%, ethyl cellulose 3%, boron zinc sintered material 3.1%, copper oxide 0.9% and oleoyl sarcosine 0.9%.

[0045] Then the above-mentioned prepared raw materials are prepared, including the following preparation steps:

[0046] 1) Mixing: Put silver, terpineol, ethyl cellulose, boron-zinc sintered material, copper oxide and oleoyl sarcosine into the mixer according to the above concentration range and mix them thoroughly. The mixing time is 20 minutes. During the mixing process, keep The mixer temperature is 80°C;

[0047] 2) Stand still: Take the mixture in step 1) out of the mixer, place it in a standing cylinder and let it stand at room temperature 25 degrees Celsius for 40 minutes;

[0048] 3) Distillation: Put the mixed liquid after standing still into the distillation machine for distillation, increase the distillation temperature d...

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PUM

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Abstract

The invention discloses conductor paste and a preparation method thereof. The conductor paste is prepared from the following raw materials in a concentration range: 70%-90% of silver, 1%-10% of terpineol, 1%-10% of ethyl cellulose, 1%-10% of a flame-retardant material, 0.1%-1% of copper oxide and 0.1%-1% of an active agent. While the silver content is reduced, the performance of the conductor slurry can be ensured not to be lost; the problem of tin beads can be effectively reduced, frequent generation of the tin beads is avoided, the thick film substrate is more durable, and the overall performance is improved; and the problem of electric conduction caused by increase of tin beads is avoided.

Description

technical field [0001] The invention relates to the technical field of electric vehicle detection, in particular to a conductive paste and a preparation method thereof. Background technique [0002] Gold conductor paste has the characteristics of high electrical conductivity, stable performance, easy thermocompression welding, and high bonding strength with the substrate. It is widely used in the production of electronic components such as hybrid integrated circuits, microwave hybrid integrated circuits, multi-chip components, and thermal print heads. . [0003] In the prior art, conductive pastes are mostly used on thick-film substrates, but the high content of silver in them leads to an increase in cost, but reducing the proportion of silver will lead to poor performance of conductive pastes, and traditional conductive pastes are also It is easy to have too many tin beads, resulting in electrical failure and short circuit of components. Contents of the invention [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B1/16H01B1/22H01B13/00
CPCH01B1/22H01B1/16H01B13/00
Inventor 崔增明郭慧
Owner JIANGSU YUNYI ELECTRIC
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