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Low-temperature co-fired ceramic material, raw materials and preparation process thereof

A low-temperature co-fired ceramic and preparation process technology, applied in the field of electronic materials, can solve the problems of complex manufacturing process, high energy consumption and high production cost, and achieve the effects of good shrinkage consistency, simple manufacturing process and low cost

Inactive Publication Date: 2013-01-23
SHENZHEN ZHENHUA FU ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] There are still big deficiencies in these "glass + ceramic filler" composite systems and "ceramic + glass" systems: ① high production costs, due to the need for high temperature melting glass, long heat treatment time, high energy consumption, high temperature volatilization resulting in formula Changes, which have resulted in complex manufacturing processes, and are not suitable for mass production; ②The requirements for equipment are high, and after the glass is melted, quenching will cause a large loss of equipment; ③The glass slag after quenching has high hardness and is difficult to grind, which not only increases Manufacturing cost, and the shape of the glass is poor, and the process adaptability is not good

Method used

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  • Low-temperature co-fired ceramic material, raw materials and preparation process thereof
  • Low-temperature co-fired ceramic material, raw materials and preparation process thereof
  • Low-temperature co-fired ceramic material, raw materials and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054]1. By weight percentage CaO 25%, MgO 4%, SiO 2 40%, B 2 o 3 (with H 3 BO 3 Form introduction) 30%, Li 2 O (in Li 2 CO 3 Form introduction) 1% weighing 100Kg of powder with a total weight, together with 200Kg of deionized water, mixed with ball mill for 24±4hr, then dried at 150±5°C, and passed through a 20-mesh sieve to obtain powder;

[0055] 2. Calcining the powder obtained in step (1) at a temperature of 500±50°C for 2±1hr to obtain powder a;

[0056] 3. Molar ratio of ZnO: SiO 2 = 100Kg of powder prepared in 2:1, together with 200Kg of deionized water, mixed with ball mill for 24±4hr, then dried at 150±5°C, and passed through a 20-mesh sieve to obtain powder;

[0057] 4. Calcining the powder obtained in step (3) at a temperature of 1050±50°C for 2±1hr to obtain powder b;

[0058] 5. According to weight percentage, powder a 30%, powder b 15%, Al 2 o 3 55% weighing 100Kg powder with a total weight, together with 80Kg deionized water, put it into a ball mil...

Embodiment 2

[0066] 1. By weight percentage CaO 20%, MgO 3%, SiO 2 50%, B 2 o 3 (with H 3 BO 3 Form introduction) 25%, Li 2 O (in Li 2 CO 3 Form introduction) 2% weigh the powder with a total weight of 100Kg, together with 200Kg of deionized water, mix and ball mill for 24±4hr, then dry at 150±5°C, and pass through a 20-mesh sieve to obtain the powder;

[0067] 2. Calcining the powder obtained in step (1) at a temperature of 600±50°C for 2±1hr to obtain powder a;

[0068] 3. Molar ratio of ZnO: SiO 2 = 100Kg of powder prepared in 2:1, together with 200Kg of deionized water, mixed with ball mill for 24±4hr, then dried at 150±5°C, and passed through a 20-mesh sieve to obtain powder;

[0069] 4. Calcining the powder obtained in step (3) at a temperature of 1050±50°C for 2±1hr to obtain powder b;

[0070] 5. By weight percentage, powder a 55%, powder b 15%, Al 2 o 3 30% weighing 100Kg powder with a total weight, together with 80Kg deionized water, put it into a ball mill for dispe...

Embodiment 3

[0078] 1. By weight percentage CaO 25%, MgO 2%, SiO 2 60%, B 2 o 3 (with H 3 BO 3 form introduced) 10%, Li 2 O (in Li 2 CO 3 Form introduction) 3% weigh the powder with a total weight of 100Kg, together with 200Kg of deionized water, mix and ball mill for 24±4hr, then dry at 150±5°C, and pass through a 20-mesh sieve to obtain the powder;

[0079] 2. Calcining the powder obtained in step (1) at a temperature of 800±50°C for 2±1hr to obtain powder a;

[0080] 3. Molar ratio of ZnO: SiO 2 = 100Kg of powder prepared in 2:1, together with 200Kg of deionized water, mixed with ball mill for 24±4hr, then dried at 150±5°C, and passed through a 20-mesh sieve to obtain powder;

[0081] 4. Calcining the powder obtained in step (3) at a temperature of 1050±50°C for 2±1hr to obtain powder b;

[0082] 5. According to weight percentage, powder a 45%, powder b 5%, Al 2 o 3 50% weighing 100Kg of powder with a total weight, together with 80Kg of deionized water, put it into a ball m...

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Abstract

The invention discloses a low-temperature co-fired ceramic material which has low manufacturing cost, high contraction consistency, and is very suitable for low temperature co-fired ceramic (LTCC) curtain coating process production and in which glass is not needed to be founded, and raw materials and a preparation method thereof. The low-temperature co-fired ceramic material is a mixed presintered body which comprises 30 to 55 weight parts of Al2O3, 30 to 55 weight parts of powder a and 5 to 20 weight parts of powder b; the powder a is the presintered body which comprises 10 to 25 weight parts of CaO, 1 to 4 weight parts of MgO, 1 to 5 weight parts of LiO2, 40 to 60 weight parts of SiO2, and 10 to 30 weight parts of B2O3; and the powder b is the presintered body which comprises ZnO and SiO2 in a molar ratio of 2 to 1.

Description

technical field [0001] The invention relates to the field of electronic materials, in particular to a low-temperature co-fired ceramic material and its raw materials and preparation process. Background technique [0002] Low temperature co-fired ceramics (LTCC for short) is a new material technology developed by Hughes Company in 1982. On the surface, laser drilling, micro-hole grouting, precision conductor paste printing and other processes are used to produce the required circuit patterns, and multiple passive components (such as low-capacity capacitors, resistors, filters, impedance converters, couplers, etc.) etc.) embedded in the multilayer ceramic substrate, and then stacked together, the inner and outer electrodes can be made of silver, copper, gold and other metals, respectively, and sintered at 900 ° C to make a high-density circuit that does not interfere with each other in three-dimensional space, and can also be made A three-dimensional circuit substrate with bu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/10C04B35/14C04B35/626C04B35/622
Inventor 阳亚辉朱建华丁晓鸿李建辉陈鲁国李晶许欢华
Owner SHENZHEN ZHENHUA FU ELECTRONICS