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Low-temperature co-fired ceramic material and preparing method thereof

A low-temperature co-fired ceramic and ceramic material technology, applied in the field of ceramic materials, can solve problems such as uneven substrate composition, poor bending strength, and insufficient bonding strength of the outer conductor film of the substrate, and achieve small temperature gradients, increase bending strength, and improve various The effect of item performance

Active Publication Date: 2019-04-16
苏州研资工业技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since glass must be used as the starting material, and it contains boron elements that are volatile during firing, the composition of the obtained substrate is uneven, and there are disadvantages such as poor bending strength and insufficient bonding strength with the outer conductor film of the substrate.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030]According to a certain mass ratio, silicon oxide, boron oxide, aluminum oxide, iron oxide, and raw materials with a particle size of less than 3.0 μm are wet-mixed. During the mixing process, ultrasonic dispersion is used for 2 hours to obtain a mixed raw material A, and the mixed raw material A is spray-dried. Then bake at 850° C. for 3 hours to obtain raw material powder B. Then add a certain amount of nano-TaC and an appropriate amount of polyvinyl butyral, di-n-butyl phthalate and water glass to the raw material powder B, and make ceramic slurry after ultrasonic dispersion, dry and mix the ceramic slurry Fill the material into the mold and shape it by hot pressing to obtain the ceramic green sheet C. Put the ceramic green sheet C into the cavity of the microwave sintering furnace for sintering for 5 hours at a sintering temperature of 850°C. Then cool down to 500°C at 5°C / min, turn off the microwave source, and cool naturally to obtain a plate-shaped ceramic material...

Embodiment 2

[0032] According to a certain mass ratio, the silicon oxide, boron oxide, aluminum oxide, iron oxide, and magnesium oxide raw materials with a particle size of less than 3.0 μm were wet-mixed. During the mixing process, ultrasonic dispersion was used for 2 hours to obtain a mixed raw material A. The mixed raw material A was After spray drying, it was calcined at 850° C. for 3 hours to obtain raw material powder B. Then add a certain amount of nano-TaC and an appropriate amount of polyvinyl butyral, di-n-butyl phthalate and water glass to the raw material powder B, and make ceramic slurry after ultrasonic dispersion, dry and mix the ceramic slurry Fill the material into the mold and shape it by hot pressing to obtain the ceramic green sheet C. Put the ceramic green sheet C into the cavity of the microwave sintering furnace for sintering for 5 hours at a sintering temperature of 850°C. Then cool down to 500°C at 5°C / min, turn off the microwave source, and cool naturally to obtai...

Embodiment 3

[0034] According to a certain mass ratio, the silicon oxide, boron oxide, aluminum oxide, and zinc oxide raw materials with a particle size below 3.0 μm are wet-mixed. During the mixing process, ultrasonic dispersion is used for 2 hours to obtain a mixed raw material A. After the mixed raw material A is spray-dried The raw material powder B was obtained by firing at 850° C. for 3 hours. Then add a certain amount of nano-TaC and an appropriate amount of polyvinyl butyral, di-n-butyl phthalate and water glass to the raw material powder B, and make ceramic slurry after ultrasonic dispersion, dry and mix the ceramic slurry Fill the material into the mold and shape it by hot pressing to obtain the ceramic green sheet C. Put the ceramic green sheet C into the cavity of the microwave sintering furnace for sintering for 5 hours at a sintering temperature of 850°C. Then cool down to 500°C at 5°C / min, turn off the microwave source, and cool naturally to obtain a plate-shaped ceramic mat...

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PUM

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Abstract

The invention provides a low-temperature co-fired ceramic material and a preparing method thereof. The low-temperature co-fired ceramic material comprises a main component ceramic material and an auxiliary material. The main component ceramic material comprises 48-75 parts of Si, 10-20 parts of B, 10-20 parts of Ti and 25-20 parts of Al according to the weight parts of oxides. Compared with the 100 parts by weight of the main component ceramic material, the auxiliary material comprises 0.1-10 parts by weight of at least one of ZnO and Fe2O3 and 1-10 parts by weight of TaC.

Description

technical field [0001] The invention relates to the field of ceramic materials, in particular to a low-temperature co-fired ceramic material and a preparation method thereof. Background technique [0002] Low-temperature co-fired ceramics (Low-temperature cofired ceramics, LTCC) technology is to make low-temperature co-fired ceramic powder into a green ceramic tape with precise thickness and density. As a circuit substrate material, laser drilling and micro-hole grouting are used on the green ceramic tape , precision conductor paste printing and other processes to produce the required circuit pattern, and embed multiple passive components in it, and then stack them together and co-fire at 900 ° C to make a passive integrated component of a three-dimensional circuit network. It can be made into a three-dimensional circuit substrate with built-in passive components, and IC and active devices can be mounted on its surface to make a passive / active integrated functional module. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/14C04B35/622
CPCC04B35/14C04B35/622C04B2235/3206C04B2235/3217C04B2235/3232C04B2235/3272C04B2235/3284C04B2235/3409C04B2235/3839C04B2235/6565C04B2235/96
Inventor 黑维梅
Owner 苏州研资工业技术有限公司
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