DIELECTRIC CERAMIC COMPOSITION FOR HIGH-FREQUENCY USE AND METHOD FOR PRODUCING THE SAME, DIELECTRIC CERAMIC FOR HIGH-FREQUENCY USE AND METHOD FOR PRODUCING THE SAME, AND HIGH-FREQUENCY CIRCUIT ELEMENT USING THE SAME

Title:

Document Type and Number:

WIPO Patent Application WO/2010/061842

Kind Code:

A1

Abstract:

Provided is a dielectric ceramic composition for high-frequency use represented by the composition formula ａ（Ｓｎ，Ｔｉ）Ｏ２－ｂＭｇ２ＳｉＯ４－ｃＭｇＴｉ２Ｏ５－ｄＭｇＳｉＯ３, wherein a, b, c, and d (where a, b, c, and d are mol%) are within a range of ４≦ａ≦３７, ３４≦ｂ≦９２, ２≦ｃ≦１５, and２≦ｄ≦１５, respectively, and hereａ＋ｂ＋ｃ＋ｄ＝１００. The dielectric ceramic composition for high-frequency use has a dielectric constant εｒ of 7.5 to 12.0, a Ｑｍ×ｆo value of 50,000 (GHz) or greater, and an absolute value of the resonance frequencyｆ。temperature correlation τｆ of 30 ppm/°C or less.

Inventors:

KAWANO, Takafumi (1978-96, Oaza Kogushi, Ube-sh, Yamaguchi 33, 〒7558633, JP)
河野　孝史 (〒33 山口県宇部市大字小串１９７８番地の９６　宇部興産株式会社内 Yamaguchi, 〒7558633, JP)
YAMANAGA, Masataka (1978-96, Oaza Kogushi, Ube-sh, Yamaguchi 33, 〒7558633, JP)

Application Number:

JP2009/069844

Publication Date:

June 03, 2010

Filing Date:

November 25, 2009

Export Citation:

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Assignee:

UBE INDUSTRIES, LTD. (1978-96, Oaza Kogushi Ube-sh, Yamaguchi 33, 〒7558633, JP)
宇部興産株式会社 (〒33 山口県宇部市大字小串１９７８番地の９６ Yamaguchi, 〒7558633, JP)
KAWANO, Takafumi (1978-96, Oaza Kogushi, Ube-sh, Yamaguchi 33, 〒7558633, JP)
河野　孝史 (〒33 山口県宇部市大字小串１９７８番地の９６　宇部興産株式会社内 Yamaguchi, 〒7558633, JP)

International Classes:

C04B35/20; H01B3/12; H01B19/00; H01G4/12; H01P7/04; H01P7/10

Attorney, Agent or Firm:

YAMASHITA, Johei et al. (YAMASHITA & ASSOCIATES, Landic Toranomon Bldg. 7-10, Toranomon 3-chome, Minato-k, Tokyo 01, 〒1050001, JP)

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