Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

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

A technology of low-temperature co-fired ceramics and slurry, applied in the field of low-temperature co-fired ceramic materials, which can solve problems such as excessively high resonance frequency temperature coefficient and low dielectric loss, achieve low dielectric loss and improve low-temperature sintering performance

Pending Publication Date: 2022-07-29
SHANDONG SINOCERA FUNCTIONAL MATERIAL CO LTD
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the glass-ceramic composite material formed by BaTi4O9 and low-melting point glass has a suitable dielectric constant and low dielectric loss, due to the high resonance between the two The frequency temperature coefficient limits its application

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Low-temperature co-fired ceramic material and preparation method thereof
  • Low-temperature co-fired ceramic material and preparation method thereof
  • Low-temperature co-fired ceramic material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] The low-temperature co-fired ceramic material described in this embodiment, in terms of the total amount of its preparation raw materials, includes the following components in mass content:

[0052] BaTi 4 O 9 55wt%;

[0053] Mg 2 SiO 4 15wt%;

[0054] Low melting point glass powder 30wt%;

[0055] Wherein, the low melting point glass powder includes the following components by weight:

[0056]

[0057] The preparation method of the low-temperature co-fired ceramic material described in this embodiment includes the following steps:

[0058] (1) According to the selected stoichiometric ratio, weigh the corresponding weight of BaCO 3 , TiO 2 , adding water (material: water = 1: 1.2) and ammonium acrylate dispersant (accounting for 0.7wt% of the powder) and mixing, using a ball mill for pre-mixing for 3h, and after ball milling, using a horizontal sand mill (The grinding medium adopts 0.65mm zirconium balls) for further dispersion to obtain a uniformly disper...

Embodiment 2

[0068] The low-temperature co-fired ceramic material described in this embodiment, in terms of the total amount of its preparation raw materials, includes the following components in mass content:

[0069] BaTi 4 O 9 70wt%;

[0070] Mg 2 SiO 4 5wt%;

[0071] Low melting point glass powder 25wt%;

[0072] Wherein, the low melting point glass powder includes the following components by weight:

[0073]

[0074] BaTi described in this example 4 O 9 The preparation method of the base low temperature co-fired ceramic material comprises the following steps:

[0075] (1) According to the selected stoichiometric ratio, weigh the corresponding weight of BaCO 3 , TiO 2 , adding water (material: water = 1: 1.2) and ammonium acrylate dispersant (accounting for 0.8wt% of the powder) and mixing, using a ball mill for pre-mixing for 3h, and after ball milling, using a horizontal sand mill (The grinding medium adopts 0.65mm zirconium balls) for further dispersion to obtain a u...

Embodiment 3

[0083] The low-temperature co-fired ceramic material described in this embodiment, in terms of the total amount of its preparation raw materials, includes the following components in mass content:

[0084] BaTi 4 O 9 65wt%;

[0085] Mg 2 SiO 4 15wt%;

[0086] Low melting point glass powder 20wt%;

[0087] Wherein, the low melting point glass powder includes the following components by weight:

[0088]

[0089] The preparation method of the low-temperature co-fired ceramic material described in this embodiment includes the following steps:

[0090] (1) According to the selected stoichiometric ratio, weigh the corresponding weight of BaCO 3 , TiO 2 , adding water (material: water = 1: 1.3) and ammonium acrylate dispersant (accounting for 0.9wt% of the powder) and mixing, using a ball mill for pre-mixing for 3h, and after ball milling, using a horizontal sand mill (The grinding medium adopts 0.65mm zirconium balls) for further dispersion to obtain a uniformly disper...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The low-temperature co-fired ceramic material comprises a matrix component, and the matrix component comprises 55-70 wt% of BaTi4O9, 10-20 wt% of BaTi4O9, 10-20 wt% of BaTi4O9, 10-20 wt 5 to 15 weight percent of Mg2SiO4; and 15 to 30 weight percent of Zn-B-Si-Al low-melting-point glass powder. The low-temperature co-fired ceramic material can meet the use requirements of Sub-6GHz microwave devices, has a dielectric constant of 18-22, a high quality factor, a near-zero resonant frequency temperature coefficient and a sintering temperature of 850-900 DEG C, has good stability along with temperature change, can be used for manufacturing 5G communication base station radio frequency front-end filters, duplexers and the like, and has an important application prospect.

Description

technical field [0001] The invention belongs to the technical field of low-temperature co-fired ceramic materials, and in particular relates to a ceramic material with high ceramic compactness, medium dielectric constant, low dielectric loss, and near-zero resonance frequency coefficient and a preparation method thereof. The ceramic material can be used for making dielectric filters, dielectric antennas, duplexers and other components in the field of electronic communication. Background technique [0002] Low Temperature Co-fired Ceramics (LTCC for short) is to make low temperature sintered ceramic powder into a green ceramic tape with precise and dense thickness, and then perform laser drilling, microporous grouting, The required circuit patterns are produced by processes such as precision conductive paste printing, and multiple passive components (such as transformers (T), resistors (R), inductors (L), capacitors (C), etc.) are embedded in it. Then lamination and sinterin...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C04B35/468C04B35/622C04B35/64C03C12/00
CPCC04B35/468C04B35/622C04B35/64C03C12/00C04B2235/3445C04B2235/365
Inventor 宋锡滨刘振锋艾辽东奚洪亮张忠楠闫鑫升
Owner SHANDONG SINOCERA FUNCTIONAL MATERIAL CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com