Low-dielectric low-high-frequency-loss LTCC material and preparation method thereof

A high-frequency loss, ceramic material technology, applied in the field of electronic components, microwave electronic components and ceramic materials, can solve the problems of unstable dielectric constant and high frequency loss

Active Publication Date: 2021-09-10
CHINA ZHENHUA GRP YUNKE ELECTRONICS
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of unstable dielectric constant and high high-frequency loss of the LTCC ceramic material of the existing glass-ceramic system

Method used

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  • Low-dielectric low-high-frequency-loss LTCC material and preparation method thereof
  • Low-dielectric low-high-frequency-loss LTCC material and preparation method thereof
  • Low-dielectric low-high-frequency-loss LTCC material and preparation method thereof

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Embodiment Construction

[0023] The glass formulation of a low-dielectric low-frequency loss LTCC ceramic material is shown in Table 1:

[0024] Table 1 Glass formulation of a low dielectric low high frequency loss LTCC ceramic material

[0025]

[0026]

[0027] In Table 1, SB means borosilicate glass series materials, and GBS means calcium borosilicate glass series materials. SB-7030 is borosilicate glass, composed of 70% silicon dioxide and 30% boron trioxide; SB-7525 is borosilicate glass, composed of 75% silicon dioxide and 25% boron trioxide; SB -8020 is borosilicate glass, which is composed of 80% silicon dioxide and 20% boron trioxide; GBS is calcium borosilicate glass, and GBS-1, GBS-2, GBS-3 are composed of corresponding borosilicate glass The best solution for glass-ceramic systems.

[0028] The main process parameters are as follows:

[0029] Glass smelting: Lime borosilicate glass at 1400°C, melting for 2 hours, borosilicate glass at 1600°C, melting for 2 hours.

[0030] Prepara...

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Abstract

The invention discloses a low-dielectric low-high-frequency-loss LTCC material and a preparation method thereof. The LTCC material comprises the components including borosilicate glass and calcium borosilicate glass; according to the mass percentage, the proportion of the borosilicate glass is 5%-20%, and the proportion of the calcium borosilicate glass is 80%-95%; the borosilicate glass comprises the following components in percentage by weight: 20%-50% of B2O3, 50%-85% of SiO2 and 1%-5% of alkali metal oxide, and the calcium borosilicate glass comprises the following components in percentage by weight: 30%-50% of CaO, 15%-40% of B2O3 and 20%-50% of SiO2. The required ceramic substrate is obtained through the steps of raw material mixing, glass powder smelting, glass cold quenching, crushing and grinding to form glass powder, glass powder mixing, glass powder passivating treatment, tape casting slurry preparation, tape casting, sintering and the like. The problems that dielectric constant and high frequency of an existing LTCC ceramic material of a glass ceramic system are unstable, and high-frequency loss is high are solved. The material is widely applied to the field of microwave electronic communication.

Description

technical field [0001] The invention belongs to the field of electronic components, specifically, to the field of microwave electronic components, and more specifically, to the field of ceramic materials for microwave electronic components. Background technique [0002] At present, LTCC materials with low dielectric constant and low high-frequency loss are divided into: glass-ceramic system, glass-ceramic system and glass-ceramic plus alumina system. For the glass-ceramic system, the traditional glass melting is to use water to cool the glass, and then use organic solvents such as water or alcohol to grind the glass. During the grinding process, the large particles of glass are broken into small particles of glass, and many new interfaces are formed by the broken glass, which increases the instability of the glass powder. Elements such as calcium and boron at the interface of the glass powder are precipitated or react with the solvent. It leads to the discharge of residual ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/14C04B35/22C04B35/622C03C12/00
CPCC04B35/14C04B35/22C04B35/622C03C12/00C04B2235/36C04B2235/365C04B2235/96
Inventor 张秀龚漫莉杜玉龙徐泽鹏尚勇何创创杨俊王星
Owner CHINA ZHENHUA GRP YUNKE ELECTRONICS
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