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Dielectric ceramic material for LTCC (Low Temperature Co-Fired Ceramic) filter as well as preparation method and application thereof
The invention discloses a dielectric ceramic material for LTCC (low temperature co-fired ceramic) filters and a preparation method and application thereof, the chemical composition formula of the ceramic material is aCaCO3-bTiO2-cBaCO3-dCuO-eZnO-fH3BO3, and a, b, c, d, e and f are mass ratios and meet the following conditions: 38% < = a < = 40%, 38% < = b < = 40%, 3% < = c < = 6%, 0.5% < = d < = 1%, 9% < = e < = 11%, 4% < = f < = 6%, and a + b + c + d + e + f = 1; the filter is applied to the field of filters of mobile terminals. A CaTiO3 main phase material and ZnCuTiO4 and ZnB2O4 auxiliary phase materials are obtained after sintering, ZnCuTiO4 has the characteristics of low dielectric, low sintering temperature and high quality factor, the CaTiO3 main phase can be improved and the sintering temperature can be reduced by combining the low melting point characteristic of ZnB2O4, and finally the ceramic material with low sintering temperature, high dielectric constant, high quality factor, low loss and low resonant frequency temperature coefficient is obtained.
本发明公开了一种LTCC滤波器用介质陶瓷材料及其制备方法和应用，所述陶瓷材料的化学组成式为aCaCO3‑bTiO2‑cBaCO3‑dCuO‑eZnO‑fH3BO3，a、b、c、d、e和f分别为质量比例，并满足以下条件：38％≤a≤40％、38％≤b≤40％、3％≤c≤6％、0.5％≤d≤1％、9％≤e≤11％、4％≤f≤6％、a+b+c+d+e+f＝1；其应用于移动端的滤波器领域。本发明烧结后得到CaTiO3主相材料以及ZnCuTiO4、ZnB2O4辅相材料，而ZnCuTiO4具有低介电、低烧结温度和高品质因素的特性，结合ZnB2O4的低熔点特性，可以对CaTiO3主相进行改进和降低烧结温度，最终得到低烧结温度、高介电常数、高品质因素、低损耗、低谐振频率温度系数的陶瓷材料。
Dielectric ceramic material for LTCC (Low Temperature Co-Fired Ceramic) filter as well as preparation method and application thereof
The invention discloses a dielectric ceramic material for LTCC (low temperature co-fired ceramic) filters and a preparation method and application thereof, the chemical composition formula of the ceramic material is aCaCO3-bTiO2-cBaCO3-dCuO-eZnO-fH3BO3, and a, b, c, d, e and f are mass ratios and meet the following conditions: 38% < = a < = 40%, 38% < = b < = 40%, 3% < = c < = 6%, 0.5% < = d < = 1%, 9% < = e < = 11%, 4% < = f < = 6%, and a + b + c + d + e + f = 1; the filter is applied to the field of filters of mobile terminals. A CaTiO3 main phase material and ZnCuTiO4 and ZnB2O4 auxiliary phase materials are obtained after sintering, ZnCuTiO4 has the characteristics of low dielectric, low sintering temperature and high quality factor, the CaTiO3 main phase can be improved and the sintering temperature can be reduced by combining the low melting point characteristic of ZnB2O4, and finally the ceramic material with low sintering temperature, high dielectric constant, high quality factor, low loss and low resonant frequency temperature coefficient is obtained.
本发明公开了一种LTCC滤波器用介质陶瓷材料及其制备方法和应用，所述陶瓷材料的化学组成式为aCaCO3‑bTiO2‑cBaCO3‑dCuO‑eZnO‑fH3BO3，a、b、c、d、e和f分别为质量比例，并满足以下条件：38％≤a≤40％、38％≤b≤40％、3％≤c≤6％、0.5％≤d≤1％、9％≤e≤11％、4％≤f≤6％、a+b+c+d+e+f＝1；其应用于移动端的滤波器领域。本发明烧结后得到CaTiO3主相材料以及ZnCuTiO4、ZnB2O4辅相材料，而ZnCuTiO4具有低介电、低烧结温度和高品质因素的特性，结合ZnB2O4的低熔点特性，可以对CaTiO3主相进行改进和降低烧结温度，最终得到低烧结温度、高介电常数、高品质因素、低损耗、低谐振频率温度系数的陶瓷材料。
Dielectric ceramic material for LTCC (Low Temperature Co-Fired Ceramic) filter as well as preparation method and application thereof
一种LTCC滤波器用介质陶瓷材料及其制备方法和应用
YOSHIGISHI (author) / KIM JIN YONG (author) / ZHANG BIN (author)
2024-03-29
Patent
Electronic Resource
Chinese
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