5G ceramic inductor and preparation process thereof

A preparation process, ceramic technology, applied in the manufacture of inductors/transformers/magnets, parts of transformers/inductors, transformer/inductor coils/windings/connections, etc., can solve the problem of ceramic body strength, shock resistance, ceramic body and metallization Unsatisfactory layer bonding strength, too dense ferrite inductors, and affecting 5G signals, etc., to achieve the effect of improving earthquake resistance, improving welding strength, and avoiding signal interference

Active Publication Date: 2021-03-05
LOUDI ANTAEUS ELECTRONICS CERAMICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of 5G and the development trend of miniaturization and miniaturization, there is a great demand for inductance for communication. At present, most of the inductance products in the domestic market use ferrite as the magnetic core. The number of oxygen body inductance is too dense, which will interfere with each other and affect the 5G signal
In the prior art, alumina ceramics are used instead of ferrite to make ceramic inductors, but the strength, shock resistance of the ceramic body and the bonding strength between the ceramic body and the metallized layer are not ideal

Method used

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  • 5G ceramic inductor and preparation process thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The preparation process of 5 g of the ceramic inductor of the present embodiment includes the steps of the following:

[0039] (1) Production: 95 parts of the grounded alumina porcelain powder (calcined alumina), 1.5 parts of silica, 1 calcium oxide, 1 zirconia 1, zirconia 1 Partially mixed glass phase powder, mixed with a mixed powder, a total weight of the powder, 1% of the PVA binder, 1%, dispersant silicon oil, 1% of the antifoam hydrosilicon oil, 1% lubricant hydrogen , Spray granulation process granulation into a loose load ratio 1.1g / m 3 , A water content of <0.5% of spherical powder, 90% of the particles and 60 mesh-250 mesh.

[0040] (2) Dry pressure molding: Dish is molded with powder with a dry press, form a blank, and pressure is 4T.

[0041] (3) Sintering: Mount the blank into the bench blanks, at a temperature of 1600 ° C, heat for 50 minutes, sintered the mold, to obtain figure 1 The 0402 model of the 0402 model, the density is 3.9g / cm 3 , Anti-fold inten...

Embodiment 2

[0047] The preparation process of 5 g of the ceramic inductor of the present embodiment includes the steps of the following:

[0048] (1) Production: 95 parts of the grounded alumina porcelain powder (calcined alumina), 2 parts of silica, 1 calcium oxide, 1 zirconia 1, zirconia 1 Partially mixed glass phase powder, mixed with a mixed powder, pressing a total weight of PVA binder 2%, 1% sodium carbonate, 0.5%, lubricant hydrogen acid, 1% , Spray granulation process granula formula is a loose color ratio 1.2g / m 3 , A water content of <0.5% of spherical powder, 90% of the particles and 60 mesh-250 mesh.

[0049] (2) Dry pressure molding: Dish is molded with powder with a dry press, form a blank, and pressure is 6T.

[0050] (3) Sintering: Mount the blank into the bench blanks, at a temperature of 1650 ° C, heat for 100 minutes, sintered the mold, to obtain figure 1 The 0402 type U-shaped ceramic body, density is 3.8g / cm 3 , Anti-fold intensity 286 MPa.

[0051] (4) Printing electro...

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Abstract

The invention discloses a 5G ceramic inductor and a preparation process thereof. The preparation process comprises the following steps: mixing aluminum oxide ceramic powder and glass phase powder in parts by weight, adding a binder and other aids, performing spray granulation to prepare powder, performing dry pressing on the powder to prepare a U-shaped green body, and sintering the green body toobtain a U-shaped ceramic body; printing silver-palladium slurry or molybdenum-manganese slurry on the two end faces of the U-shaped ceramic body in a dipping mode to serve as metallization layer slurry, and then conducting sintering to form two electrodes; and sequentially plating nickel and tin on the surfaces of the electrodes, and winding or welding a wire on the U-shaped ceramic body to prepare the ceramic inductor. The obtained ceramic body is high in strength, high in shock resistance and high in bonding strength with a metallization layer, and can replace part of magnetic core inductance products on a 5G communication circuit module board, signal interference is avoided, and the 5G signal strength is improved.

Description

Technical field [0001] The present invention belongs to the field of ceramic inductance components, and more particularly to a 5 g of ceramic inductance and its preparation processes. Background technique [0002] With the development of 5G and the development trend of miniaturization, miniaturization, the inductance demand for communications is very large, and most of the domestic market uses the inductive product of ferrite as magnetic, the iron in the same area. The amount of oxygen inductance is too dense, interfered with each other, affects 5G signal. In the prior art, there is a ceramic inductor in an alumina ceramic replacement ferrite, but the strength, seismic capacity, and the intensity of ceramic body and metallization layer are not ideal. Inventive content [0003] The technical problem to be solved by the present invention is to overcome the deficiencies and defects mentioned in the above background, providing a 5G high-frequency ceramic inductor and its preparation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/10C04B35/622C04B41/90H01F27/29H01F27/30H01F41/00
CPCC04B35/10C04B35/622C04B41/009C04B41/52C04B41/90H01F41/00H01F27/29H01F27/306C04B2235/36C04B2235/602C04B2235/656C04B41/5122C04B41/4535C04B41/5116C04B41/0072C04B41/5138C04B41/455C04B41/522C04B41/5144C04B41/5161
Inventor 康文涛刘溪海蒋勇彭悦
Owner LOUDI ANTAEUS ELECTRONICS CERAMICS
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