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Effects of Pb–B–Si–O glass on the microstructures and electrical properties of silver electrode for LTCC application

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Abstract

The co-firing compatibility between green tape and the Ag electrode is a crucial characteristic in low-temperature co-fired ceramic (LTCC) technology and plays a vital role in improving the performance and application status of LTCC device modules. In this work, we studied the effects of lead content on the glass viscosity, the microstructure, and co-firing compatibility of silver electrode film. It was found that the softening point and viscosity of the glass were decreased, and the wettability between the glass and silver was improved with the increase of the lead content, which promoted the co-firing densification and interfacial bonding between the silver electrode film and the ceramic layer. The film presented the best electrical properties co-firing at 875 °C for 15 min, with the resistivity of 1.21 mΩ/sq. And the film was densified. The sintering interface was clear and well bonded. The results showed that an appropriate lead content in glass could effectively improve the interfacial bonding and the electrical properties during co-fired process, providing a new control methodology for realizing co-fired matching of the silver electrode film with low-temperature co-fired ceramics.

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Data availability

The datasets generated and analyzed during the study are available from the corresponding author on reasonable request.

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Funding

This work was supported by the Natural Science Foundation of Hunan Province of China (Grant No. 2018JJ3602).

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Authors and Affiliations

  1. College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, 410073, China

    Zhuofeng Liu, Wenxue Liang, Weijun Zhang, Fenglin Wang, Yan Xun, Tongting Chen, Wei Li, Xingyu Chen & Haijun Mao

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  1. Zhuofeng Liu
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  2. Wenxue Liang
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  3. Weijun Zhang
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  4. Fenglin Wang
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  5. Yan Xun
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  6. Tongting Chen
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  7. Wei Li
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  8. Xingyu Chen
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  9. Haijun Mao
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Contributions

All authors contributed to the study conception and design. Material preparation, data collection, and analysis were performed by Zhuofeng Liu, Wenxue Liang, Weijun Zhang, Fenglin Wang, Yan Xun, Tongting Chen, Wei Li, Xingyu Chen, and Haijun Mao. The first draft of the manuscript was written by Zhuofeng Liu and Wenxue Liang. All authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

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Correspondence to Zhuofeng Liu or Weijun Zhang.

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Liu, Z., Liang, W., Zhang, W. et al. Effects of Pb–B–Si–O glass on the microstructures and electrical properties of silver electrode for LTCC application. J Mater Sci: Mater Electron 33, 17814–17827 (2022). https://doi.org/10.1007/s10854-022-08646-3

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  • DOI: https://doi.org/10.1007/s10854-022-08646-3

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