Magnetostatic-wave devices
    8.
    发明公开
    Magnetostatic-wave devices 失效
    Gerätefürmagnetostatische Wellen。

    公开(公告)号:EP0522388A1

    公开(公告)日:1993-01-13

    申请号:EP92110931.0

    申请日:1992-06-27

    IPC分类号: H03H2/00 H01F10/24 H01F10/28

    摘要: A magnetostatic wave device comprises a magnetic garnet film epitaxially grown on a Gd₃Ga₂(GaO₄)₃ substrate. The film is of a composition of a system (Y,Gd)₃Fe₅O₁₂ and has the lattice constant substantially equal to that of the substrate, the difference in lattice constant between the substrate and film being not more than 0.01 Å. The composition may be modified with a small amount of at least one element selected from the group consisting of Bi, Ga and Al.

    摘要翻译: 静磁波器件包括在Gd3Ga2(GaO4)3衬底上外延生长的磁性石榴石膜。 该膜是系统(Y,Gd)3Fe 5 O 12的组成,其晶格常数基本上等于衬底的晶格常数,衬底和膜之间的晶格常数差不超过0.01安培。 该组合物可以用少量选自Bi,Ga和Al中的至少一种元素进行改性。

    Nonreducing dielectric ceramic and monolithic ceramic capacitor
    10.
    发明公开
    Nonreducing dielectric ceramic and monolithic ceramic capacitor 有权
    非还原性介电陶瓷组合物及叠层陶瓷电容器

    公开(公告)号:EP1056102A3

    公开(公告)日:2006-05-24

    申请号:EP00106628.1

    申请日:2000-03-28

    IPC分类号: H01G4/12 C04B35/468

    CPC分类号: H01G4/1227 C04B35/4682

    摘要: A nonreducing dielectric ceramic has a perovskite structure represented by the formula ABO 3 with a principal crystal phase comprising barium titanate as a principal constituent. The crystal axis ratio c/a determined by an X-ray diffraction method at a temperature of -25°C or more satisfies the relationship 1.000 ≤ c/a ≤ 1.003. Preferably, the nonreducing dielectric ceramic has a phase transition point of less than -25°C. Preferably, the nonreducing dielectric ceramic contains at least one rare-earth element. A monolithic ceramic capacitor including dielectric ceramic layers composed of a nonreducing dielectric ceramic in accordance with the present invention is also disclosed.