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Inner electrode conductive gold pulp applied to low temperature co-fired ceramic, and preparation method thereof

A technology of low-temperature co-fired ceramics and internal electrodes, which is applied in the manufacture of cables/conductors, conductive materials dispersed in non-conductive inorganic materials, circuits, etc. It can solve the problems of unsatisfactory conductivity of microwave dielectric materials and achieve high performance Reliable, good printability, good co-firing matching effect

Active Publication Date: 2014-11-19
SHANGHAI LINEPRINTING MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing conductive gold paste and LTCC low dielectric constant microwave dielectric materials are not satisfactory in terms of matching, printing, or conductivity

Method used

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  • Inner electrode conductive gold pulp applied to low temperature co-fired ceramic, and preparation method thereof
  • Inner electrode conductive gold pulp applied to low temperature co-fired ceramic, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] This embodiment provides a conductive gold paste for internal electrodes applied to low-temperature co-fired ceramics. The conductive gold paste for internal electrodes includes the following components in terms of mass ratio: 70% gold particles, 10% inorganic additives, 15% % carrier, 0.5% adjuvant, and 4.5% solvent.

[0031] As an example, the gold particles are selected from gold powders whose morphology is spherical and whose particle size is selected from gold powders whose D50 is between 1 and 3 microns and whose D90 is not greater than 5 microns.

[0032] As an example, the inorganic additives include the following components in parts by weight: 25 parts of Al 2 o 3 , 40 parts of SiO 2 , 5 copies of Bi 2 o 3 , 20 parts of CaCO 3 , and 10 parts of SrCaO 3 .

[0033] As an example, the carrier includes a mixture of the following components in mass ratio: 30% specialty resin, and 70% solvent. Further, the special resin is selected from esters, and the solven...

Embodiment 2

[0042] This embodiment provides a conductive gold paste for internal electrodes applied to low-temperature co-fired ceramics. The conductive gold paste for internal electrodes includes the following components in terms of mass ratio: 92% gold particles, 1% inorganic additives, 4 % carrier, 0.3% adjuvant, and 2.7% solvent.

[0043] As an example, the gold particles are selected from gold powders whose morphology is flake-like, and whose particle size is selected from gold powder whose D50 is between 1-3 microns and whose D90 is not greater than 5 microns.

[0044]As an example, the inorganic additives include the following components in parts by weight: 20 parts of Al 2 o 3 , 35 parts of SiO 2 , 10 copies of Bi 2 o 3 , 20 parts of CaCO 3 , and 15 parts of SrCaO 3 .

[0045] As an example, the carrier includes a mixture of the following components in mass ratio: 10% specialty resin, and 90% solvent. Further, the special resin is selected from alcohol esters, and the solv...

Embodiment 3

[0053] This embodiment provides a conductive gold paste for internal electrodes applied to low-temperature co-fired ceramics. The conductive gold paste for internal electrodes includes the following components in terms of mass ratio: 85% gold particles, 5% inorganic additives, 8% % carrier, 1% adjuvant, and 1% solvent.

[0054] As an example, the size of the gold particles is selected from gold powder whose D50 is between 1 and 3 microns and whose D90 is not greater than 5 microns, and the shape is flake 50 parts and spherical 50 powders.

[0055] As an example, the inorganic additives include the following components in parts by weight: 20 parts of Al 2 o 3 , 15 parts of SiO 2 , 35 copies of Bi 2 o 3 , 25 parts of CaCO 3 , and 5 parts of SrCaO 3 .

[0056] As an example, the carrier includes a mixture of the following components in mass ratio: 20% specialty resin, and 80% solvent. Further, the special resin is cellulose, and the solvent is alcohol.

[0057] As an exa...

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Abstract

The invention provides inner electrode conductive gold pulp applied to low temperature co-fired ceramic, and a preparation method thereof. The inner electrode conductive gold pulp comprises the following components in percentage by mass: 70% to 92% of gold particles, 0% to 10% of an inorganic matter additive, 5% to 25% of a carrier, 0.3% to 1% of an auxiliary, and 0.5% to 5% of a solvent. The inner electrode conductive gold pulp has the advantages that the co-fired matching property with systematic membrane belts such as CaO-B2O3-SiO2 with reliable property under a high-frequency condition is good, the printing property is good, and the conductivity is excellent, and the like. The preparation method is simple in steps and easy to realize industrialization.

Description

technical field [0001] The invention relates to a conductive paste and a preparation method thereof, in particular to an internal electrode conductive gold paste applied to low-temperature co-fired ceramics and a preparation method thereof. Background technique [0002] With the rapid development of modern information technology, there are demands for miniaturization, convenience, multi-function and high reliability of electronic products. Low temperature co-fired ceramic (LTCC) technology is a new technology emerging in recent years. The eye-catching multidisciplinary integrated component technology has become the first choice for the integration and modularization of electronic components in the future because of its excellent electronic and thermomechanical properties. The high frequency of LTCC low dielectric constant microwave dielectric materials is an inevitable trend in the development of microwave components, and low dielectric constant and low loss are the design b...

Claims

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Application Information

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IPC IPC(8): H01B1/16H01B1/22H01B13/00
Inventor 江九山兰开东杨兆国
Owner SHANGHAI LINEPRINTING MATERIALS CO LTD
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