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

A technology of low-temperature co-fired ceramics and raw material tape, which is applied in the field of low-temperature co-fired ceramics, can solve the problems of large sintering shrinkage rate and the like, and achieve the effect of good matching.

Active Publication Date: 2020-08-07
上海晶材新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a low temperature co-fired ceramic green belt and its preparation method, which is used to solve the problem of sintering in the X and Y axis directions of the existing LTCC green belt material after sintering. The problem of large shrinkage

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  • Low-temperature co-fired ceramic raw material belt and preparation method thereof
  • Low-temperature co-fired ceramic raw material belt and preparation method thereof
  • Low-temperature co-fired ceramic raw material belt and preparation method thereof

Examples

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Embodiment 1

[0037] Such as figure 1 As shown, this embodiment provides a method for preparing a low-temperature co-fired ceramic green belt, the preparation method comprising:

[0038] Step 1) Mixing CBS glass-ceramic powder and BBZ glass powder to obtain a glass mixture powder, and preparing a glass mixture slurry based on the glass mixture powder.

[0039] As an example, the preparation method of the CBS glass-ceramics powder includes:

[0040] The CBS glass-ceramic powder includes the following components by mass ratio: 35%-37% of CaO, 33%-35% of B 2 o 3 , 27%-30% SiO 2 And 2%-4% TiO 2 ;

[0041] Weigh according to the above ratio, mix and put it into a crucible, and melt it into glass liquid at 1450°C-1500°C, quench it into a glass block, and grind it into the CBS glass-ceramic powder by a sand mill; wherein, The particle size D50 of the CBS glass-ceramic powder is 2.0 μm-2.2 μm.

[0042]Specifically, before the mixed raw materials constituting the CBS glass-ceramic powder are ...

Embodiment 2

[0086] Such as figure 2 As shown, this embodiment provides a low-temperature co-fired ceramic raw tape, which is formed on the surface of the base film 100. The raw tape includes, from bottom to top, a lower material layer 200, an intermediate material layer 300, and an upper material layer 400. Wherein, the lower material layer 200 is made of glass mixed slurry based on CBS glass-ceramic powder and BBZ glass powder, and the intermediate material layer 300 is made of ceramic slurry based on ceramic powder, The upper material layer 400 is made of glass mixed slurry based on CBS glass-ceramic powder and BBZ glass powder.

[0087] In this example, the base film 100 includes a PET film; of course, other materials that can be used as the base film are also applicable to this example, and this example does not limit the material of the base film.

[0088] As an example, the glass mixed paste prepared based on CBS glass-ceramic powder and BBZ glass powder includes: CBS glass-cerami...

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Abstract

The invention provides a low-temperature co-fired ceramic raw material belt and a preparation method thereof. The preparation method comprises the following steps: mixing CBS microcrystalline glass powder and BBZ glass powder to obtain glass mixed powder, and obtaining glass mixed slurry on the basis of the glass mixed powder; preparing ceramic slurry based on the ceramic powder; and forming a lower material layer on the surface of the base film based on the glass mixed slurry, forming an intermediate material layer on the surface of the lower material layer based on the ceramic slurry, and forming an upper material layer on the surface of the intermediate material layer based on the glass mixed slurry to prepare the raw material belt. According to the invention, the problem of large sintering shrinkage rate in the X-axis direction and the Y-axis direction after the existing LTCC raw material belt material is sintered is solved.

Description

technical field [0001] The invention relates to the field of low-temperature co-fired ceramics, in particular to a low-temperature co-fired ceramic raw belt and a preparation method thereof. Background technique [0002] Low-temperature cofired ceramics (LTCC) technology refers to making low-temperature sintered ceramic powder into a precise and dense raw tape as a circuit substrate material. hole grouting, 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 for sintering to make a passive integrated component of a three-dimensional circuit network or a built-in passive component. The three-dimensional circuit substrate of the source component is made into a passive / active integrated functional module by mounting IC and active devices on its surface. LTCC technology is easy to realize the integrated structure of multi-layer wiring and packaging, which can re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/622C04B35/64C03C12/00C03C10/00C03C3/064C03C3/14
CPCC04B35/622C04B35/64C03C12/00C03C10/00C03C3/064C03C3/14C04B2235/3217C04B2235/36C04B2235/96C04B2235/9615
Inventor 兰开东李自豪欧阳思波
Owner 上海晶材新材料科技有限公司
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