Microwave Dielectric Properties of the $0.6TiTe_3O_8-0.4MgTiO_3$ Ceramics With $H_3BO_3$ and SnO

$H_3BO_3$와 SnO 첨가에 따른 $0.6TiTe_3O_8-0.4MgTiO_3$ 세라믹스의 마이크로파 유전특성

  • Published : 2005.04.01

Abstract

In this study, the microwave dielectric properties of $0-6TiTe_3O_8-0.4MgTiO_3$ ceramic with $H_3BO_3$ and SnO were investigated to reduce the sintering time for the LTCC application. According to the X-ray diffraction patterns, both of $0-6TiTe_3O_8-0.4MgTiO_3$ ceramic with $H_3BO_3$ and SnO had the columbite structure of $TiTe_3O_8$ Phase, the ilmenite structure of $MgTiO_3$ phase. The density and dielectric constant of the $0-6TiTe_3O_8-0.4MgTiO_3$ ceramics with $H_3BO_3$ sintered at $830^{\circ}C$ for 1 hour were decreased but the quality factor was not changed with addition of $H_3BO_3$. Also the temperature coefficient of resonant frequency was not changed hardly. In the case of addition of SnO, the density and dielectric constant were increased but the quality factor was decreased and the temperature coefficient of resonant frequency was shifted to the negative(-) direction.

Keywords

References

  1. R. R. Turnmala, 'Ceramic and Glass-ceramics Packaging in the 1990s', J. Am. Ceram. Soc., 74[5] pp. 895-908, 1939 https://doi.org/10.1111/j.1151-2916.1991.tb04320.x
  2. H. T. Sawhill, 'Materials Compatibility and Cosintering Aspects of Shrinkage Control in Low-temperature Cofired Ceramic Package', Ceram. Tran., 26 pp. 307-19, 1987
  3. Yamanaka, S. and Miyake, M., 'Study of the ternary Ti-Te-O system', J. Less-Common Metall., 159, pp. 179-189, 1990 https://doi.org/10.1016/0022-5088(90)90146-B
  4. M. Udovic, M. Valant, D. Suvorov 'Dielectric characterisation of ceramics from the $TiO_2-TeO_2$ system', J. Euro. Ceram. Soc., 21, pp.1735-1738, 2001 https://doi.org/10.1016/S0955-2219(01)00105-4
  5. 이문기, 김재식, 최의선, 류기원, 이영희 '${CaF}_2$ 첨가에 따른 ${TiTe}_3 O_8$ 세라믹스의 마이크로파 유전특성' 대한전기학회하계학술대회 C, pp.1589 -1591, 2003
  6. W. J. Gyuurk, 'Methods for Manufacturing Monolithic Ceramic Bodies', U.S. Patent 3, 192, 086, 1965
  7. G. Zablotny, 'Improving Yields in Cofied Ceramic Packages: An Examination of Process and Equipment', Hybrid Circuit Tech., 9 pp.33-35, 1992
  8. Cheng-Liang Huang and Ming-Hung Weng, 'Improved high Q value of ${MgTiO}_3-{CaTiO}_3$ microwave dielectric ceramics at low sintering temperature', Mater. Res. Bull., 36, pp.2741-2750, 2001 https://doi.org/10.1016/S0025-5408(01)00752-8
  9. B. W. Hakki, 'A Dielectric Resonator Method of Measuring Inductive Capacities in the Millimeter Range', IRE Trans. on Microwave Theory and Techniques, Vol. MTT-24, No.10, 1960
  10. Y. Kobayashi, 'Microwave Measurement of Dielectric Properties of Low-Loss Materials by the Dielectric Rod Resonator Method', IEEE Trans. on Microwave Theory and Techniques, Vol. MTT-33, No.&, 1985
  11. Heli Jantunen et al., 'Compositions of ${MgTiO}_3-{CaTiO}_3$ceramic with two borosilicate glasses for L TCC technology', J. Euro. Ceram. Soc., 20, pp.2331-2336, 2000 https://doi.org/10.1016/S0955-2219(00)00145-X
  12. W. D. Kingery, H. K. Bowen and D. R. Uhlmann, 'Introduction to Ceramics', John Wiely & Sons, Second edition, pp.937-945, 1976