Silver powder for 5G filter and production method thereof

A production method and filter technology, which are applied in metal processing equipment, transportation and packaging, etc., can solve the problems of sintering active shrinkage rate, silver ion mobility, low weldability, lack of self-production ability, etc., and improve the density. And the effect of electrical conductivity, high adhesion and excellent electrical conductivity

Pending Publication Date: 2021-07-09
JIANGSU BOQIAN NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, since the current conductive silver paste for ceramic dielectric filters is mainly obtained through imports, it does not have the ability to produce itself. In order to achieve import substitution and promote the rapid development of domestic 5G construction, it is urgent to develop a s

Method used

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  • Silver powder for 5G filter and production method thereof
  • Silver powder for 5G filter and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A 5G filter is silver powder, which includes the following components: 20 parts of spherical silver powder by weight. Among them, the particle size of spherical silver powder is 0.1-2 μm.

[0037] It should be noted that the spherical silver powder includes two silver powder of different particle diameters, and a silver powder has a particle diameter of 0.1 μm, and the diameter of the silver powder is 0.8 μm. The silver powder used in the particle diameter of 0.1 μm accounted for 10% of the total spherical silver powder, and thus the spherical silver powder and the sheet-like silver powder were effectively filled. At the same time, the spherical silver powder employed is prepared from the raw silver powder.

[0038] The production method of silver powder for the 5G filter of the present embodiment includes the following steps:

[0039] Step 1, a spherical silver powder having a particle diameter of 0.1 μm is 1: 9 by weight, and the particle size is 0.8 μm spherical silver p...

Embodiment 2

[0045] Such as figure 1 As shown, a 5G filter is silver powder, which includes the following components: 64 pieces of spherical silver powder and 80 parts of silver powder. Among them, the particle diameter of the spherical silver powder is 0.1-2 μm, the sheet length of the sheet silver powder is 5 μm, and the film thickness is 0.5 μm.

[0046] It should be noted that the spherical silver powder includes two silver powder of different particle diameters, and a silver powder has a particle diameter of 0.3 μm, and the particle diameter of the silver powder is 1.4 μm. The silver powder used in the particle size of 0.3 μm accounted for 12.5% ​​of the total spherical silver powder, and thus effectively fill the spherical silver powder and sheet silver powder. At the same time, the spherical silver powder employed is prepared from the raw silver powder.

[0047] The production method of silver powder for the 5G filter of the present embodiment includes the following steps:

[0048] Step 1...

Embodiment 3

[0054] Such as figure 2 As shown, a 5G filter is silver powder, which includes the following components: 80 parts of spherical silver powder and 80 parts of sheet-like silver powder. Among them, the particle size of the spherical silver powder is 0.1-2 μm, and the sheet length of the sheet silver powder is 10 μm, and the film thickness is 1.0 μm.

[0055] It should be noted that the spherical silver powder includes two different particle diameter silver powder, and a silver powder has a particle diameter of 0.5 μm, and the diameter of the silver powder is 2 μm. The silver powder used in the particle size of 0.5 μm accounted for 20% of the total weight of the spherical silver powder, and thus the spherical silver powder and the sheet-like silver powder were effectively filled. At the same time, the spherical silver powder employed is prepared from the raw silver powder.

[0056] The production method of silver powder for the 5G filter of the present embodiment includes the followin...

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Abstract

The invention discloses silver powder for a 5G filter and a production method thereof, and relates to the technical field of metal powder preparation. The silver powder is characterized by comprising the following components in parts by weight: 20-95 parts of spherical silver powder and 0-80 parts of flake silver powder, wherein the particle size of the spherical silver powder is 0.1-2 microns, the flake length of the flake silver powder is 1-10 microns, and the flake thickness is 0.1-1.0 micron. The silver powder for the 5G filter is obtained by filling silver powder with different particle size ranges and different morphologies, and has the effect of remarkably improving the compactness and the conductivity of the powder; and meanwhile, the processes of mixing, grinding and drying are improved, and the silver powder for the 5G filter obtained by the production method has the effects of high sintering activity, low silver ion mobility, high adhesive force, good shrinkage matching with a base material and excellent conductivity after being prepared into ceramic filter conductive silver paste, can be applied to industrial production, and is effectively applied to the field of 5G communication.

Description

Technical field [0001] The present invention relates to the technical field of metal powder preparation, and more particularly to a silver powder for a 5G filter and a production method thereof. Background technique [0002] The filter is an integrated device that is an indispensable part of the communication device. As the communication enters the 5G era, the 5G large-scale antenna array (Massive MIMO) technology is developed, and the base station integration, miniaturization, lightweight Requirements, a higher challenge, miniaturization, high performance, and low power filters are the key to 5G equipment miniaturization. The world's four major mobile communication base station equipment, Huawei and Ericsson have selected ceramic media filters, ZTE and Nokia are currently transition from miniature metal cavity filters to ceramic media filters, and ceramic media filters will occupy most markets. Share. At the same time, ceramic media filters are also widely used for consumer elec...

Claims

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Application Information

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IPC IPC(8): B22F1/00B22F9/04
CPCB22F9/04B22F2009/043B22F1/052B22F1/065B22F1/068
Inventor 王翠霞王锴尧苏耳兵张耀辉
Owner JIANGSU BOQIAN NEW MATERIALS
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