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Environment-friendly medium-high dielectric constant LTCC (Low Temperature Co-Fired Ceramic) material and preparation method thereof
The invention discloses an environment-friendly medium-high dielectric constant LTCC (Low Temperature Co-Fired Ceramic) material and a preparation method thereof, the LTCC material is obtained by compounding Li1. 0Nb0. 6Ti0. 5O3 and Li2CO3-B2O3-Bi2O3-SiO2 glass through a solid-phase reaction method, the problems of low-temperature sintering and resonant frequency temperature coefficient adjustment are solved at the same time, and the relatively high dielectric constant of the material is maintained at the same time. Under the condition that Li2CO3-B2O3-Bi2O3-SiO2 glass is added to serve as a fluxing agent, low-temperature sintering of a material system within the range of 850-925 DEG C is achieved, meanwhile, the temperature coefficient of resonance frequency of the material can be adjusted to be within +/-5 ppm/DEG C, the dielectric constant of the material is 53-62, and the Q * f value exceeds 6000 GHz. The LTCC ceramic material disclosed by the invention has relatively low sintering temperature and better compactness, and meanwhile, low-temperature co-firing of the LTCC ceramic material and Ag can be realized.
本发明公开了一种环保型中高介电常数LTCC陶瓷材料及其制备方法，基于Li1.0Nb0.6Ti0.5O3和Li2CO3‑B2O3‑Bi2O3‑SiO2玻璃进行固相反应法复合获得LTCC陶瓷材料，同时解决低温烧结和调节谐振频率温度系数的问题，同时保持较高的材料介电常数。在添加Li2CO3‑B2O3‑Bi2O3‑SiO2玻璃作为助熔剂的情况下，实现材料体系在850℃～925℃范围内的低温烧结，同时材料的谐振频率温度系数也能调整到±5ppm/℃以内，材料的介电常数也在53～62之间，Q×f值超过了6000GHz。本发明LTCC陶瓷材料拥有较低的烧结温度以及更好的致密性的同时还可实现与Ag的低温共烧。
Environment-friendly medium-high dielectric constant LTCC (Low Temperature Co-Fired Ceramic) material and preparation method thereof
The invention discloses an environment-friendly medium-high dielectric constant LTCC (Low Temperature Co-Fired Ceramic) material and a preparation method thereof, the LTCC material is obtained by compounding Li1. 0Nb0. 6Ti0. 5O3 and Li2CO3-B2O3-Bi2O3-SiO2 glass through a solid-phase reaction method, the problems of low-temperature sintering and resonant frequency temperature coefficient adjustment are solved at the same time, and the relatively high dielectric constant of the material is maintained at the same time. Under the condition that Li2CO3-B2O3-Bi2O3-SiO2 glass is added to serve as a fluxing agent, low-temperature sintering of a material system within the range of 850-925 DEG C is achieved, meanwhile, the temperature coefficient of resonance frequency of the material can be adjusted to be within +/-5 ppm/DEG C, the dielectric constant of the material is 53-62, and the Q * f value exceeds 6000 GHz. The LTCC ceramic material disclosed by the invention has relatively low sintering temperature and better compactness, and meanwhile, low-temperature co-firing of the LTCC ceramic material and Ag can be realized.
本发明公开了一种环保型中高介电常数LTCC陶瓷材料及其制备方法，基于Li1.0Nb0.6Ti0.5O3和Li2CO3‑B2O3‑Bi2O3‑SiO2玻璃进行固相反应法复合获得LTCC陶瓷材料，同时解决低温烧结和调节谐振频率温度系数的问题，同时保持较高的材料介电常数。在添加Li2CO3‑B2O3‑Bi2O3‑SiO2玻璃作为助熔剂的情况下，实现材料体系在850℃～925℃范围内的低温烧结，同时材料的谐振频率温度系数也能调整到±5ppm/℃以内，材料的介电常数也在53～62之间，Q×f值超过了6000GHz。本发明LTCC陶瓷材料拥有较低的烧结温度以及更好的致密性的同时还可实现与Ag的低温共烧。
Environment-friendly medium-high dielectric constant LTCC (Low Temperature Co-Fired Ceramic) material and preparation method thereof
一种环保型中高介电常数LTCC陶瓷材料及其制备方法
ZENG MAO (Autor:in) / WANG HONGLIN (Autor:in) / SHEN JIANG (Autor:in)
29.03.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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