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A kind of laminated zinc oxide composition suitable for low temperature co-firing with silver inner electrode and preparation method thereof

A technology of low-temperature co-firing and production methods, which is applied in the field of varistors, can solve the problems such as the inconspicuous optimization of the electrical characteristic parameters of the composition, and achieve the improvement of electrical performance and product electrical performance consistency, improve electrical performance, and increase yield Effect

Active Publication Date: 2022-07-22
如东宝联电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the existing technical solution reduces the sintering temperature of the system by adding boron oxide, the optimization of the electrical characteristic parameters of the prepared composition is not obvious

Method used

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  • A kind of laminated zinc oxide composition suitable for low temperature co-firing with silver inner electrode and preparation method thereof
  • A kind of laminated zinc oxide composition suitable for low temperature co-firing with silver inner electrode and preparation method thereof
  • A kind of laminated zinc oxide composition suitable for low temperature co-firing with silver inner electrode and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Example 1: A laminated zinc oxide composition suitable for low-temperature co-firing with silver inner electrodes, comprising the following components by weight: 102 parts of ZnO, 11 parts of Bi 2 O 3 , 8 parts of Sb2 O 3 , 2.3 parts of Cr 2 O 3 , 4 parts of Mn 2 O 3 , 2.4 copies of Co 2 O 3 , 1.5 copies of B 2 O 3 , Al-Zn-Silica glass is 0.05% by weight of ZnO, 1.06 parts Al(OH) 3 , wherein the particle size of ZnO is 0.01-0.4 μm; it is prepared by the following steps, specifically including:

[0041] S1, material preparation: prepare the above-mentioned corresponding components in parts by weight;

[0042] S2, sintered material prefabrication: the Bi 2 O 3 , Sb 2 O 3 , Cr 2 O 3 , Mn 2 O 3 , Co 2 O 3 Mixing, grinding and calcining were carried out, the calcination temperature was 820°C, and the calcination time was 3h;

[0043] S3. Dispersion and mixing of the sintered material: pulverize and grind the sintered material obtained in step S2 to the r...

Embodiment 2

[0048] Example 2: A layered zinc oxide composition suitable for low-temperature co-firing with silver inner electrodes, comprising the following components by weight: 102 parts of ZnO, 5 parts of Bi 2 O 3 , 8 parts of Sb 2 O 3 , 2.3 parts of Cr 2 O 3 , 4.0 parts of Mn 2 O 3 , 2.4 copies of Co 2 O 3 , 1.5 copies of B 2 O 3 , Al-Zn-Silica glass is 0.05% by weight of ZnO, 1.06 parts Al(OH) 3 , wherein the particle size of ZnO is 0.01-0.4 μm; it is prepared by the following steps, specifically including:

[0049] S1, material preparation: prepare the above-mentioned corresponding components in parts by weight;

[0050] S2, sintered material prefabrication: the Bi 2 O 3 , Sb 2 O 3 , Cr 2 O 3 , Mn 2 O 3 , Co 2 O 3 Mixing, grinding and calcining were carried out, the calcination temperature was 800°C, and the calcination time was 2h;

[0051] S3. Dispersion and mixing of the sintered material: pulverize and grind the sintered material obtained in step S2 to the ...

Embodiment 3

[0056] Example 3: A layered zinc oxide composition suitable for low-temperature co-firing with silver inner electrodes, comprising the following components by weight: 102 parts of ZnO, 8 parts of Bi 2 O 3 , 8 parts of Sb 2 O 3 , 2.3 parts of Cr 2 O 3 , 4.0 parts of Mn 2 O 3 , 2.4 copies of Co 2 O 3 , 1.5 copies of B 2 O 3 , Al-Zn-Silica glass is 0.05% by weight of ZnO, 1.06 parts Al(OH) 3 , wherein the particle size of ZnO is 0.01-0.4 μm; it is prepared by the following steps, specifically including:

[0057] S1, material preparation: prepare the above-mentioned corresponding components in parts by weight;

[0058] S2, sintered material prefabrication: the Bi 2 O 3 , Sb 2 O 3 , Cr 2 O 3 , Mn 2 O 3 , Co 2 O 3 Mixing, grinding and calcining were carried out, the calcination temperature was 810°C, and the calcination time was 2h;

[0059] S3. Dispersion and mixing of the sintered material: pulverize and grind the sintered material obtained in step S2 to the ...

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Abstract

The invention relates to the technical field of varistors, and aims to provide a layered zinc oxide composition suitable for low-temperature co-firing with silver inner electrodes, which comprises the following components in parts by weight: 100-105 parts of ZnO, 5-19 parts of Bi 2 O 3 , 5.5‑12 parts of Sb 2 O 3 , 1.9‑2.8 parts of Cr 2 O 3 , 3.2-5.4 parts of Mn 2 O 3 , 1.8‑3.4 copies of Co 2 O 3 , 1‑3 copies of B 2 O 3 , also includes aluminum-zinc-silicate glass whose content is 0.01%-10% by weight relative to ZnO, and also includes nano-scale Al(OH) 3 and / or Al 2 O 3 , the molar percentage of Al element is 0.01%-1%; also discloses the preparation method of zinc oxide composition, including: S1, material preparation; S2, prefabrication of sintered material; S3, dispersion of sintered material; S4, preparation material of zinc oxide composition Mixing; S5, primary calcination; S6, secondary calcination; S7, grinding. The zinc oxide composition material can be prepared at a lower sintering temperature, and the prepared material has the advantages of superior comprehensive electrical properties and high consistency of composition properties.

Description

technical field [0001] The invention relates to the technical field of varistors, in particular to a laminated zinc oxide composition suitable for co-firing with silver inner electrodes at low temperature and a preparation method thereof. Background technique [0002] With the development of information technology, electronic compositions are developing in the direction of miniaturization, high integration and digitization, which promotes the improvement of electronic components in the direction of lightness, thinness and smallness, that is, miniaturization, integration and multi-function. Therefore, the technology and application of multi-layer chip ZnO varistors (MLVs) suitable for surface mounting have attracted attention from all walks of life, and the market share has also increased steadily. [0003] Zinc oxide varistor is mainly composed of zinc oxide, and adds oxides such as bismuth (Bi), antimony (Sb), silicon (Si), cobalt (Co), manganese (Mn) and chromium (Cr), and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/453C04B35/626
CPCC04B35/453C04B35/62605C04B35/6261C04B2235/3298C04B2235/3294C04B2235/3241C04B2235/3265C04B2235/3275C04B2235/3409C04B2235/36
Inventor 李吉晓李岩何建成
Owner 如东宝联电子科技有限公司