Title:
METAL BASE SUBSTRATE
Document Type and Number:
WIPO Patent Application WO/2011/122407
Kind Code:
A1
Abstract:
Disclosed is a metal base substrate which comprises a low-temperature sintering ceramic layer formed on a metal substrate, and in which the low-temperature sintering ceramic layer is not prone to cracking or peeling at the interface with the metal substrate, and the anti-peeling strength of the surface conductor is improved while making it possible for the metal substrate to be configured from copper. In the metal base substrate (12) provided with a metal substrate (14) and a low-temperature sintering ceramic layer (15) formed thereon, the thermal expansion coefficient of the metal substrate (14) is greater than that of the low-temperature sintering ceramic layer (15); the average difference in thermal expansion coefficients between the metal substrate (14) and the low-temperature sintering ceramic layer (15) at 25-400C is 4-9 ppm/degree celsius; the Young's modulus of the low-temperature sintering ceramic layer (15) is less than 120 GPa; and the flexural strength is 200MPa or higher.
Inventors:
MORIYA, Yoichi (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
守屋 要一 (〒55 京都府長岡京市東神足１丁目１０番１号 株式会社村田製作所内 Kyoto, 〒6178555, JP)
KATSUBE, Tsuyoshi (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
勝部 毅 (〒55 京都府長岡京市東神足１丁目１０番１号 株式会社村田製作所内 Kyoto, 〒6178555, JP)
TAKEMORI, Yuki (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
守屋 要一 (〒55 京都府長岡京市東神足１丁目１０番１号 株式会社村田製作所内 Kyoto, 〒6178555, JP)
KATSUBE, Tsuyoshi (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
勝部 毅 (〒55 京都府長岡京市東神足１丁目１０番１号 株式会社村田製作所内 Kyoto, 〒6178555, JP)
TAKEMORI, Yuki (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
Application Number:
JP2011/056914
Publication Date:
October 06, 2011
Filing Date:
March 23, 2011
Export Citation:
Assignee:
MURATA MANUFACTURING CO., LTD. (10-1, Higashikotari 1-chome Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
株式会社村田製作所 (〒55 京都府長岡京市東神足１丁目１０番１号 Kyoto, 〒6178555, JP)
MORIYA, Yoichi (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
守屋 要一 (〒55 京都府長岡京市東神足１丁目１０番１号 株式会社村田製作所内 Kyoto, 〒6178555, JP)
KATSUBE, Tsuyoshi (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
勝部 毅 (〒55 京都府長岡京市東神足１丁目１０番１号 株式会社村田製作所内 Kyoto, 〒6178555, JP)
株式会社村田製作所 (〒55 京都府長岡京市東神足１丁目１０番１号 Kyoto, 〒6178555, JP)
MORIYA, Yoichi (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
守屋 要一 (〒55 京都府長岡京市東神足１丁目１０番１号 株式会社村田製作所内 Kyoto, 〒6178555, JP)
KATSUBE, Tsuyoshi (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
勝部 毅 (〒55 京都府長岡京市東神足１丁目１０番１号 株式会社村田製作所内 Kyoto, 〒6178555, JP)
International Classes:
B32B15/04; H05K1/05
Attorney, Agent or Firm:
KOSHIBA, Masaaki (Koshiba Patent Office, 13-8 Hyakurakuen 3-chome, Nara-sh, Nara 24, 〒6310024, JP)
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