Influence of Sm₂O₃ Additive on BaO-Al₂O₃-B₂O₃-SiO₂ Glass-Ceramics for CBGA Package

Abstract:

Sm₂O₃ additive significantly influenced the microstructure, mechanical, and electrical properties of BaO-Al₂O₃-B₂O₃-SiO₂ glass-ceramics. The calculation by the whole pattern fitting method based on XRD patterns revealed that Sm₂O₃ additive improved the crystallization process of this tetra-system and promoted the formation of major phase quartz. The sintering kinetics showed that Sm₂O₃ addition markedly reduced the sintering activation energy from 406.86 kJ/mol to 391.38 kJ/mol, which benefited the sintering densification and the grain growth, and thus enhanced mechanical properties. Doping 2% Sm₂O₃ reinforced the flexure strength from 136.3 to 171.6 MPa and the Young’s modulus from 49.4 to 79.7 GPa. It also exhibited low dielectric constant of 5.31, low dielectric loss of 5.30 × 10^-4, and high thermal expansion coefficient of 11.76 × 10^-6/°C.

• Periodical: Key Engineering Materials (Volume 803)
• Pages: 88-92
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.803.88
• Online since: May 2019
• Authors: Bo Li*, Hai Bo Bian, Ke Jing
• Keywords: CBGA, Glass-Ceramics, LTCC, Mechanical Properties, Sintering Kinetic

References

[1] H. Xi, D. Zhou, H. Xie, W. Li: Mater. Lett. Forum Vol. 142 (2015), p.221.

[2] S. Chen, D. Zhu: J. Alloys Compd. Forum Vol. 536 (2012), p.73.

[3] B. Li, W. Li, J. Zheng: J. Alloys Compd. Forum Vol. 725 (2017), p.1091.

[4] L. Yuliantini, R. Hidayat M. Djamal, K. Boonin, P. Yasaka, E. Kaewnuam, J. Kaewkhao: Non-Cryst. Solids. Forum Vol. 482 (2018), p.86.

DOI: 10.1016/j.jnoncrysol.2017.12.012

[5] P. Tian, J. Cheng, G. Zhang: Appl. Surf. Sci. Forum Vol. 257 (2011), p.4896.

[6] Y. Ni, C. Lu, Y. Zhang, Z. Xu, Q. Zhang: J. Rare Earths. Forum Vol. 25 (2007), p.94.

[7] C. Lai, J. Wang, F. Zhou, W. Liu, N. Miao: J. Alloys Compd. Forum Vol. 735 (2018), p.2685.