Microwave dielectric properties and low-temperature cofiring of BaTe 4O 9 with aluminum metal electrode

Do Kyun Kwon, Michael T. Lanagan, Thomas R. Shrout

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135 Scopus citations

Abstract

Polycrystalline BaTe4O9 ceramic compound was investigated as a promising microwave dielectric compound for low-temperature cofired ceramics (LTCC) applications. The binary phase BaTe4O9 was synthesized and subsequently densified over the temperature range of only 500°-550°C, which allows for low-temperature cofiring with aluminum metal. The dielectric properties of BaTe4O9 ceramics sintered at 550°C for 2 h were determined in the microwave region of 12-14 GHz. The dielectric constant and Q×f product obtained were 17.5 and 54 700 GHz at 12 GHz, respectively. The temperature coefficient of resonance frequency showed a negative value of -90 ppm°C. In terms of its evaluation for LTCC, the BaTe4O9 composition was found to be chemically compatible and successfully cofired with highly conductive aluminum electrode, while maintaining good electrical performance.

Original languageEnglish (US)
Pages (from-to)3419-3422
Number of pages4
JournalJournal of the American Ceramic Society
Volume88
Issue number12
DOIs
StatePublished - Dec 1 2005

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

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