Glass composition, millimeter-wave low temperature co-fired ceramic material, and preparation method of ceramic material

A low-temperature co-fired ceramic and glass composition technology, applied in the field of low-temperature co-fired ceramics, can solve the problem of high dielectric loss, achieve excellent dielectric loss, simple preparation process, and good overall performance

Active Publication Date: 2019-10-22
CHENGDU HONGMING & UESTC NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The invention provides a millimeter-wave low-temperature co-fired ceramic material, which is used to solve the technical problem existing in the prior art: the high dielectric loss of the existing low-temperature co-fired ceramics

Method used

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  • Glass composition, millimeter-wave low temperature co-fired ceramic material, and preparation method of ceramic material
  • Glass composition, millimeter-wave low temperature co-fired ceramic material, and preparation method of ceramic material
  • Glass composition, millimeter-wave low temperature co-fired ceramic material, and preparation method of ceramic material

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Experimental program
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Effect test

Embodiment 1

[0031] A millimeter-wave low-temperature co-fired ceramic material, comprising the following components, calculated by weight percentage:

[0032] Glass composition 44%; Aluminum oxide 56%;

[0033] The glass composition includes the following components, calculated by weight percentage:

[0034]

[0035]

[0036] A method for preparing a millimeter-wave low-temperature co-fired ceramic material: comprising the following steps:

[0037] S1: Preparation of glass composition

[0038] Weigh the above-mentioned glass composition raw materials according to weight percentage; mix and dry the raw materials with a ball mill; put them into a crucible, the temperature of the crucible is 1350°C, and continue to heat the crucible to 1450°C and melt for 60 minutes, then pour it into deionized water to cool Quenching to obtain glass slag, and performing airflow grinding on the glass slag to obtain glass powder, the particle size of the glass powder is D50, and the length is 5-7 μm; ...

Embodiment 2

[0042] A millimeter-wave low-temperature co-fired ceramic material, comprising the following components, calculated by weight percentage:

[0043] Glass composition 49%; Aluminum oxide 51%;

[0044] The glass composition includes the following components, calculated by weight percentage:

[0045]

[0046] A method for preparing a millimeter-wave low-temperature co-fired ceramic material: comprising the following steps:

[0047] S1: Preparation of glass composition

[0048] Weigh the raw materials of the above-mentioned glass composition according to parts by weight; mix and dry the raw materials with a ball mill; put them into a crucible, the temperature of the crucible is 1350°C, and continue to heat the crucible to 1450°C and melt for 60 minutes, then pour it into deionized water to cool Quenching to obtain glass slag, and performing airflow grinding on the glass slag to obtain glass powder, the particle size of the glass powder is D50, and the length is 5-7 μm;

[004...

Embodiment 3

[0052] A millimeter-wave low-temperature co-fired ceramic material, comprising the following components, calculated by weight percentage:

[0053] Glass composition 45%; Aluminum oxide 55%;

[0054] The glass composition includes the following components, calculated by weight percentage:

[0055]

[0056] A method for preparing a millimeter-wave low-temperature co-fired ceramic material: comprising the following steps:

[0057] S1: Preparation of glass composition

[0058] Weigh the raw materials of the above-mentioned glass composition according to parts by weight; mix and dry the raw materials with a ball mill; put them into a crucible, the temperature of the crucible is 1350°C, and continue to heat the crucible to 1450°C and melt for 60 minutes, then pour it into deionized water to cool Quenching to obtain glass slag, and performing airflow grinding on the glass slag to obtain glass powder, i.e. glass powder, the particle size of the glass-ceramic is D50, and the lengt...

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Abstract

The invention discloses a millimeter-wave low temperature co-fired ceramic material. The ceramic material comprises 44-49 wt% of a glass composition and 51-56 wt% of alumina and the glass compositioncomprises 10-37 wt% of CaO, 5-32 wt% of La2O3, 12-40 wt% of B2O3, 5-32 wt% of SiO2, 0.2-5 wt% of CuO, 0.1-10 wt% of P2O5, 0-1 wt% of Na2O and 0-1 wt% of K2O. The millimeter-wave low temperature co-fired ceramic material is prepared by melting and sintering the glass composition and alumina, and the obtained millimeter-wave low temperature co-fired ceramic material has good comprehensive performances, and has a dielectric constant of 6.4-7.3; and the dielectric loss at 15 GHz is less than 0.002, and the dielectric loss at 40 GHz is less than 0.003.

Description

technical field [0001] The present invention relates to the technical field of low-temperature co-fired ceramics, specifically, a millimeter-wave low-temperature co-fired ceramic material and a preparation method thereof. Background technique [0002] Low-temperature co-fired ceramics (LTCC) use low-temperature sintered ceramics and organic binders / plasticizers to mix in a certain proportion, and form green tapes by casting, punching holes, metallized wiring, and through-hole filling on the green tapes. Operation Finally, a multilayer wiring substrate made by low-temperature sintering is obtained. [0003] Electronic products such as modern communication and radar are developing in the direction of miniaturization, light weight, high speed and high reliability. It is required to continuously increase the assembly and interconnection density of microwave and millimeter wave circuits to achieve miniaturization and light weight. [0004] Low-temperature co-fired ceramic techno...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/068C04B35/10C04B35/622
CPCC03C3/068C04B35/10C04B35/622C04B2235/36
Inventor 李在映田茂林鄢健乔峰林晓云
Owner CHENGDU HONGMING & UESTC NEW MATERIALS
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