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    Dielectric ceramic composition for low temperature sintering and multilayer ceramic capacitor using the same
    4.
    发明授权
    Dielectric ceramic composition for low temperature sintering and multilayer ceramic capacitor using the same 有权
    用于低温烧结的介电陶瓷组合物和使用其的多层陶瓷电容器

    公开(公告)号：US07336476B2

    公开(公告)日：2008-02-26

    申请号：US11493671

    申请日：2006-07-27

    申请人： Chan Kong Kim ,  Kang Heon Hur ,  Eun Sang Na ,  Sung Bum Sohn ,  Tae Ho Song ,  Han Seong Jung

    发明人： Chan Kong Kim ,  Kang Heon Hur ,  Eun Sang Na ,  Sung Bum Sohn ,  Tae Ho Song ,  Han Seong Jung

    IPC分类号： H01G4/12 ,  C04B35/468

    CPC分类号： H01G4/1227 ,  C04B35/4682 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3239 ,  C04B2235/3241 ,  C04B2235/3262 ,  C04B2235/3418 ,  C04B2235/5445 ,  C04B2235/6584 ,  C04B2235/661 ,  C04B2235/79 ,  C04B2235/85 ,  H01G4/30

    摘要： The invention relates to a dielectric ceramic composition, which can be sintered at a low temperature as well as achieve a high dielectric constant with excellent thermal stability, and a multilayer ceramic capacitor using the same. The dielectric ceramic composition comprises a main component of (Ba1−xCax)mTiO3; and sub-components including MgCO3, RE2O3, MO, MnO, V2O5, Cr2O3 and a sintering additive of SiO2. RE2O3 is at least one selected from the rare earth oxide group consisting of Y2O3, Dy2O3 and Ho2O3, and MO is one of Ba and Ca. The dielectric ceramic composition is expressed by a following formula: a(Ba1−xCax)mTiO3-bMgCO3-cRE2O3-dMO-eMnO-fSiO2-gV2O5-hCr2O3. Here, a, b, c, d, e, f, g, and h satisfy following relationships: in mole fraction, a=100, 0.1≦b≦3.0, 0.1≦c≦3.0, 0.1≦d≦3.0, 0.05≦e≦1.0, 0.2≦f≦3.0, 0.01≦g≦1.0, and 0.01≦h≦1.0, and x and m satisfy following relationships: 0.005≦x≦0.15, and 0.995≦m≦1.03.

    摘要翻译： 本发明涉及一种电介质陶瓷组合物，其可以在低温下烧结以及获得具有优异热稳定性的高介电常数，以及使用其的多层陶瓷电容器。 电介质陶瓷组合物包含主要组分（Ba 1-x N x Ca 2）m TiO 2 3; 以及包括MgCO 3，RE 2 O 3，MO，MnO，V 2 O，SUB的子组分 > 5 ，Cr 2 O 3 3和SiO 2的烧结添加剂。 RE 2 O 3是选自由Y 2 O 3 O 3组成的稀土氧化物组中的至少一种， Dy 2 O 3和H 2 O 3 O 3，MO是Ba和Ca之一。 电介质陶瓷组合物由下式表示：a（Ba 1-x x Ca 2）m N 2 O 3 2-b M gCO 3 -cRE 2 O 3 -MO-eMnO-fSiO 2 -GV 2 O 5 2 3。 这里，a，b，c，d，e，f，g和h满足以下关系：摩尔分数a =100,0.1≤b≤3.0,0.1≤c≤3.0,0.1≤d <= 3.0,0.05 <= e <= 1.0,0.2 <= f <= 3.0,0.01 <= g <= 1.0,0.01 <= h <= 1.0，x和m满足以下关系：0.005 <= x < = 0.15，0.995 <= m <= 1.03。

    Multi-layer ceramic capacitor
    8.
    发明授权
    Multi-layer ceramic capacitor 有权
    多层陶瓷电容

    公开(公告)号：US07545626B1

    公开(公告)日：2009-06-09

    申请号：US12073917

    申请日：2008-03-12

    申请人： Dae Hwan Kim ,  Tae Ho Song ,  Hyung Joon Kim ,  Jong Ho Lee ,  Chul Seung Lee

    发明人： Dae Hwan Kim ,  Tae Ho Song ,  Hyung Joon Kim ,  Jong Ho Lee ,  Chul Seung Lee

    IPC分类号： H01G4/06

    CPC分类号： H01G4/30 ,  H01G4/12 ,  H01G4/255

    摘要： A multi-layer ceramic capacitor including: a ceramic sintered body having cover layers provided on upper and lower surfaces thereof as outermost layers and a plurality of ceramic layers disposed between the cover layers; first and second internal electrodes formed on the ceramic layers, the first and second internal electrodes stacked to interpose one of the ceramic layers; first and second external electrodes formed on opposing sides of the ceramic sintered body to connect to the first and second internal electrodes, respectively; and anti-oxidant electrode layers formed between the cover layers and adjacent ones of the ceramic layers, respectively, the anti-oxidant electrode layers arranged not to affect capacitance.

    摘要翻译： 一种多层陶瓷电容器，包括：陶瓷烧结体，其具有在其上表面和下表面上设置为最外层的覆盖层和设置在所述覆盖层之间的多个陶瓷层; 形成在所述陶瓷层上的第一和第二内部电极，所述第一和第二内部电极层叠以插入所述陶瓷层之一; 形成在陶瓷烧结体的相对侧上的第一和第二外部电极分别连接到第一和第二内部电极; 以及在覆盖层和相邻的陶瓷层之间形成的抗氧化剂电极层，抗氧化剂电极层分别布置成不影响电容。