A kind of silver conductor paste with strong adhesion force for 5g ceramic dielectric filter

A technology of silver conductor paste and ceramic medium, which is applied in the direction of cable/conductor manufacturing, conductive materials dispersed in non-conductive inorganic materials, electrical components, etc. issues such as damage

Active Publication Date: 2021-07-06
西安宏星电子浆料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after the oxide reacts with the filter ceramic, it will affect the Q value and insertion loss of the filter, and there will be problems such as large pulling force, poor Q value and insertion loss, etc.

Method used

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  • A kind of silver conductor paste with strong adhesion force for 5g ceramic dielectric filter
  • A kind of silver conductor paste with strong adhesion force for 5g ceramic dielectric filter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～5

[0026] The silver conductor paste 100g of embodiment 1~5 is prepared according to the formula in table 1, and concrete preparation method is as follows:

[0027] 1. Weigh and mix dolomite powder and cryolite powder according to the weight ratio of 1:1, heat treat at 160°C for 70 minutes, and then cool to room temperature to obtain a mixture of heat-treated active dolomite powder and cryolite powder with a particle size range of 0.3-1.0 μm .

[0028] 2. Preparation of Ca-B-Si glass powder: make the oxide 13% B by weight 2 o 3 , 42% SiO 2 , 40%CaO, 4%Al 2 o 3 Weigh it in proportion to 1% MgO, mix it well, dry it in an oven at 150°C for 2 hours, then melt it at 1150°C for 2 hours, quench the evenly melted glass with water to obtain coarse glass particles, add it to the ball mill in a polyurethane tank 12 small, and then dried at 125 ° C to obtain Ca-B-Si glass powder with a particle size of 1.0-1.8 μm.

[0029] 3. Preparation of organic carrier: According to the weight perc...

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Abstract

The invention discloses a silver conductor paste with strong adhesion for a 5G ceramic dielectric filter. The silver conductor paste is composed of 55% to 70% of spherical silver powder, 6% to 20% of flake silver powder, and glass powder 0.5% to 3%, heat-treated active dolomite powder and cryolite powder mixture 0.2% to 2%, organic carrier 8% to 15%, slurry modifier 1% to 5%, organic diluent 5% to 11%. In the present invention, after the dolomite powder and cryolite powder raw materials are heat-treated, a mixture of active dolomite powder and cryolite powder is formed and added to the conductive silver paste to finally obtain a high-adhesion silver conductor paste, and the pulling part does not peel, and is tested at the same time Good solderability and excellent electrical conductivity. After the silver conductor paste of the present invention is applied to a series of 5G ceramic dielectric filter tiles, the leveling property is good, the metallized film layer is smooth, and the adhesion is improved while taking into account the conductivity of the paste, which can effectively reduce the Insertion loss, so that the filter has a higher quality factor.

Description

technical field [0001] The invention belongs to the technical field of silver conductor paste for 5G ceramic dielectric filters, and in particular relates to a silver conductor paste with strong adhesion for 5G ceramic dielectric filters. Background technique [0002] With the development of mobile communication networks, wireless frequency bands have become very dense. Requirements such as miniaturization, low loss, and stable and reliable performance will soon be the mainstream pursuit of 5G communications. 5G ceramic dielectric filters have become mainstream filters in the 5G era due to their small size, low loss, and high Q value. With its excellent performance, it has a wider application space in the field of mobile communication. In order to improve the performance of the ceramic dielectric filter, a layer of silver paste is coated on the surface of the ceramic dielectric filter. Therefore, metallization is one of the key technologies of ceramic dielectric filters, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B1/22H01B1/24H01B13/00
CPCH01B1/22H01B1/24H01B13/00
Inventor 党丽萍鹿宁赵科良王顺顺赵莹王大林王明奎张亚鹏
Owner 西安宏星电子浆料科技股份有限公司
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