Low temperature sintering of BaTi4O9-based middle-k dielectric composition for LTCC applications

Young Jin Choi, Jeong Hyun Park, Won Jun Ko, Jae Hwan Park, Sahn Nahm, Jae Gwan Park

    Research output: Contribution to journalArticlepeer-review

    31 Citations (Scopus)

    Abstract

    Effect of glass addition on the low-temperature sintering and microwave dielectric properties of BaTi4O9-based ceramics were studied to develop the middle-k dielectric composition for the functional substrate of low-temperature co-fired ceramics. When 10 wt% of glass was added, sufficient densification was obtained and the relative density more than 98% was reached at the sintering temperature of 875°C. The microwave dielectric properties were k = 32, Q × f = 9000 GHz, and t cf = 10 ppm/°C. As the added amount of glass frit with base dielectric composition, phase changes from BaTi4O9 to BaTi5O 11 and Ba4Ti13O30 was observed, which result in the modification of microwave dielectric properties.

    Original languageEnglish
    Pages (from-to)157-162
    Number of pages6
    JournalJournal of Electroceramics
    Volume14
    Issue number2
    DOIs
    Publication statusPublished - 2005 Mar

    Bibliographical note

    Funding Information:
    This research was supported in part by a grant from the Center for Advanced Materials Processing (CAMP) of the 21st Century Frontier R&D Program funded by the Ministry of Science and Technology, Republic of Korea.

    Keywords

    • BaTiO
    • Glass frit
    • LTCC
    • Middle-permittivity

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Ceramics and Composites
    • Condensed Matter Physics
    • Mechanics of Materials
    • Electrical and Electronic Engineering
    • Materials Chemistry

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