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Lead-free borosilicate glass-based ceramic composite material and preparation method thereof

A ceramic composite material, lead-free borosilicate technology, applied in glass manufacturing equipment, glass furnace equipment, glass molding, etc., can solve the problems of lead content, unfriendly environment and human health, etc., and achieve high densification and excellent Microwave dielectric properties and good burning effect

Active Publication Date: 2022-04-12
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing ceramic firing accelerator lead borosilicate glass contains lead, which is very unfriendly to the environment and human health, so it is necessary to make glass lead-free

Method used

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  • Lead-free borosilicate glass-based ceramic composite material and preparation method thereof
  • Lead-free borosilicate glass-based ceramic composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] In this example, SiO in the lead-free borosilicate glass-based ceramic composite material 2 -B 2 o 3 -AlF 3 -SrO glass, fused silica, Al 2 o 3 Ceramics, AlN ceramics and TiO 2 The mass fraction of ceramics is 55wt.%, 23wt.%, 10wt.%, 10wt.% and 2wt.%. The preparation method is as follows:

[0061] (1) Mix the weighed glass raw material powder with ethanol as a solvent ball mill for 24 hours, the speed is 500rpm, the ball milling medium is a zirconium ball with a diameter of 15mm, and the mass ratio is glass raw material powder: ethanol: zirconium ball = 1:2: 4. Take the uniformly mixed raw materials, press filter, dry at 80°C for 24 hours, pass through a 100-mesh sieve, and then smelt at 1500°C for 2 hours, and quench the glass melt in distilled water to obtain glass slag;

[0062] (2) The glass slag is crushed by a planetary ball mill to obtain glass powder, the rotating speed is 500rpm, and the time is 12h; the ball milling medium is zirconium balls, and the solv...

Embodiment 2

[0070] In this example, SiO in the lead-free borosilicate glass-based ceramic composite material 2 -B 2 o 3 -AlF 3 -SrO glass, fused silica, Al 2 o 3 , AlN and TiO 2 The mass fraction of is 54wt.%, 10wt.%, 30wt.%, 5wt.% and 1wt.%, and preparation process is as follows:

[0071] (1) Mix the weighed glass raw material powder with ethanol as a solvent ball mill for 24 hours, the speed is 500rpm, the ball milling medium is a zirconium ball with a diameter of 15mm, and the mass ratio is glass raw material powder: ethanol: zirconium ball = 1:2: 4. The ball milling medium is zirconium balls with a diameter of 15mm; take the uniformly mixed raw materials, press filter, dry at 80°C for 24 hours, pass through a 100-mesh sieve, and then smelt at 1500°C for 2 hours, and the glass melt is quenched in distilled water to obtain glass slag;

[0072] (2) The glass slag is crushed by a planetary ball mill to obtain glass powder, the rotating speed is 500rpm, and the time is 12h; the ball...

Embodiment 3

[0078] In this example, SiO in the lead-free borosilicate glass-based ceramic composite material 2 -B 2 o 3 -AlF 3 -SrO glass, fused silica, Al 2 o 3 Ceramics, AlN ceramics and TiO 2 The mass fraction of ceramics is 54wt.%, 5wt.%, 15wt.%, 25wt.% and 1wt.%, and the preparation process is as follows:

[0079] (1) Mix the weighed glass raw material powder with ethanol as a solvent ball mill for 24 hours, the speed is 500rpm, the ball milling medium is a zirconium ball with a diameter of 15mm, and the mass ratio is glass raw material powder: ethanol: zirconium ball = 1:2: 4. The diameter of the zirconium ball is 15mm; take the uniformly mixed raw materials, press filter, dry at 80°C for 24 hours, pass through a 100-mesh sieve, and then smelt at 1500°C for 2 hours, and the glass melt is quenched in distilled water to obtain glass slag;

[0080] (2) The glass slag is crushed by a planetary ball mill to obtain glass powder, the rotating speed is 500rpm, and the time is 12h; the...

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Abstract

The invention discloses a lead-free borosilicate glass-based ceramic composite material and a preparation method thereof. The lead-free borosilicate glass-based ceramic composite material is prepared from the following components in percentage by weight: 40 to 60 percent of SiO2-B2O3-AlF3-SrO glass which is used as a matrix and 40 to 60 percent of ceramic. The glass-based ceramic composite material is obtained by uniformly mixing ceramic powder and glass powder with proper particle sizes, granulating, tabletting and sintering. The prepared glass-based ceramic composite material has the characteristics of excellent microwave dielectric property, high bending strength, low thermal expansion coefficient, relatively high heat conductivity coefficient, good matching property with silver electrodes and the like, and has an application prospect in the field of low-temperature co-fired ceramic (LTCC) packaging.

Description

technical field [0001] The invention relates to the technical field of chip and integrated passive components, in particular to a lead-free borosilicate glass-based ceramic composite material and a preparation method thereof. Background technique [0002] With the successful development of 2nm process silicon-based chips, the current integration density of chips has approached the limit, and it is the future trend to improve the integration of microelectronic components through packaging technology. The LTCC packaging substrate is formed by co-firing of multi-layer ceramic layers printed with circuits at low temperature (≤900°C), which can realize three-dimensional packaging of active and passive components, and has broad applications in the field of high-density and high-reliability microelectronic packaging. Application prospects. In practical applications, the LTCC package substrate needs to have excellent microwave dielectric properties, high mechanical strength, good t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C14/00C03B19/06C03C3/118C03B5/16C04B35/14C04B35/117C04B35/582C04B35/622C04B35/64
CPCY02P40/60
Inventor 王大伟颜廷楠于淑会孙蓉
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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