Metallic nickel powders, method for preparing the same, conductive paste, and MLCC
    1.
    发明授权
    Metallic nickel powders, method for preparing the same, conductive paste, and MLCC 失效
    金属镍粉末,其制备方法,导电浆料和MLCC

    公开(公告)号:US07238221B2

    公开(公告)日:2007-07-03

    申请号:US10819918

    申请日:2004-04-08

    IPC分类号: B22F9/24

    摘要: Provided are a method for preparing metallic nickel powders capable of decreasing the content of an alkaline metal in the metallic nickel powders, metallic nickel powders with the low content of an alkaline metal, a conductive paste including metallic nickel powders with the low content of an alkaline metal, and a multi-layer ceramic capacitor (MLCC) including a nickel inner electrode with the low content of an alkaline metal. The method for preparing the metallic nickel powders includes heating a mixture including an organic base, a nickel precursor compound, and a polyol. Wherein, the nickel precursor compound is converted to the metallic nickel powders through reduction by the organic base and the polyol. In the method, the organic base is used instead of the hydroxide of an alkaline metal such as NaOH and KOH. Therefore, the content of an alkaline metal such as sodium and potassium that can be incorporated as an impurity into the metallic nickel powders can be significantly reduced.

    摘要翻译: 提供了一种能够降低金属镍粉末中的碱金属含量的金属镍粉末的方法,碱金属含量低的金属镍粉末,含有碱性低的金属镍粉末的导电膏 金属和包含碱金属含量低的镍内电极的多层陶瓷电容器(MLCC)。 制备金属镍粉末的方法包括加热包括有机碱,镍前体化合物和多元醇的混合物。 其中,镍前体化合物通过有机碱和多元醇的还原转化为金属镍粉末。 在该方法中,使用有机碱代替NaOH和KOH等碱金属的氢氧化物。 因此,可以显着降低作为杂质掺入到金属镍粉末中的碱金属如钠和钾的含量。

    Metallic nickel powders, method for preparing the same, conductive paste, and MLCC
    2.
    发明申请
    Metallic nickel powders, method for preparing the same, conductive paste, and MLCC 审中-公开
    金属镍粉末,其制备方法,导电浆料和MLCC

    公开(公告)号:US20080043402A1

    公开(公告)日:2008-02-21

    申请号:US11802402

    申请日:2007-05-22

    IPC分类号: H01G4/008 C22C19/03 H01B1/02

    摘要: Provided are a method for preparing metallic nickel powders capable of decreasing the content of an alkaline metal in the metallic nickel powders, metallic nickel powders with the low content of an alkaline metal, a conductive paste including metallic nickel powders with the low content of an alkaline metal, and a multi-layer ceramic capacitor (MLCC) including a nickel inner electrode with the low content of an alkaline metal. The method for preparing the metallic nickel powders includes heating a mixture including an organic base, a nickel precursor compound, and a polyol. Wherein, the nickel precursor compound is converted to the metallic nickel powders through reduction by the organic base and the polyol. In the method, the organic base is used instead of the hydroxide of an alkaline metal such as NaOH and KOH. Therefore, the content of an alkaline metal such as sodium and potassium that can be incorporated as an impurity into the metallic nickel powders can be significantly reduced.

    摘要翻译: 提供了一种能够降低金属镍粉末中的碱金属含量的金属镍粉末的方法,碱金属含量低的金属镍粉末,含有碱性低的金属镍粉末的导电膏 金属和包含碱金属含量低的镍内电极的多层陶瓷电容器(MLCC)。 制备金属镍粉末的方法包括加热包括有机碱,镍前体化合物和多元醇的混合物。 其中,镍前体化合物通过有机碱和多元醇的还原转化为金属镍粉末。 在该方法中,使用有机碱代替NaOH和KOH等碱金属的氢氧化物。 因此,可以显着降低作为杂质掺入到金属镍粉末中的碱金属如钠和钾的含量。

    Non-magnetic nickel powders and method for preparing the same
    3.
    发明授权
    Non-magnetic nickel powders and method for preparing the same 失效
    非磁性镍粉及其制备方法

    公开(公告)号:US07727303B2

    公开(公告)日:2010-06-01

    申请号:US11710406

    申请日:2007-02-26

    IPC分类号: C22C19/03

    摘要: Provided are non-magnetic nickel powders and a method for preparing the same. The nickel powders are non-magnetic and have a HCP crystal structure. An exemplary method includes (a) dispersing nickel powders with a FCC crystal structure in an organic solvent to prepare a starting material dispersion, and (b) heating the starting material dispersion to transform the nickel powders with the FCC crystal structure to the nickel powders with the HCP crystal structure. The nickel powders do not exhibit magnetic agglomeration or aggregation phenomenon. Therefore, exemplary pastes for inner electrode formation in various electronic devices, which contain the nickel powders of the present disclosure, can be provided in a relatively uniform, well-dispersed state because of the reduced aggregation and agglomeration of the nickel powder. Also, inner electrodes made of the nickel powders can have a low impedance value even at high frequency band.

    摘要翻译: 提供非磁性镍粉末及其制备方法。 镍粉是非磁性的,具有HCP晶体结构。 一种示例性方法包括(a)将FCC晶体结构的镍粉分散在有机溶剂中以制备原料分散体,和(b)加热原料分散体以将具有FCC晶体结构的镍粉转化为镍粉, HCP晶体结构。 镍粉末不会发生磁性聚集或聚集现象。 因此,由于镍粉的聚集和聚集减少,所以可以以相对均匀的,良好分散的状态提供包含本公开的镍粉末的各种电子器件中的内部电极形成的示例性糊料。 此外,即使在高频带,由镍粉制成的内电极也可以具有低阻抗值。

    Non-magnetic nickel powders and method for preparing the same
    4.
    发明授权
    Non-magnetic nickel powders and method for preparing the same 失效
    非磁性镍粉及其制备方法

    公开(公告)号:US07182801B2

    公开(公告)日:2007-02-27

    申请号:US10819917

    申请日:2004-04-08

    IPC分类号: B22F1/00

    摘要: Provided are non-magnetic nickel powders and a method for preparing the same. The nickel powders have non-magnetic property and a HCP crystal structure. The method include (a) dispersing nickel powders with a FCC crystal structure in an organic solvent to prepare a starting material dispersion, and (b) heating the starting material dispersion to transform the nickel powders with the FCC crystal structure to the nickel powders with the HCP crystal structure. The nickel powders do not exhibit magnetic agglomeration phenomenon. Therefore, the pastes for inner electrode formation in various electronic devices, which contain the nickel powders of the present invention, can keep the well-dispersed state. Also, inner electrodes made of the nickel powders can have a low impedance value even at high frequency band.

    摘要翻译: 提供非磁性镍粉末及其制备方法。 镍粉具有非磁性和HCP晶体结构。 该方法包括(a)将FCC晶体结构的镍粉分散在有机溶剂中以制备原料分散体,(b)加热原料分散液,将FCC晶体结构的镍粉转化为镍粉, HCP晶体结构。 镍粉不显示磁性聚集现象。 因此,含有本发明的镍粉末的各种电子器件中的内部电极形成用糊料可以保持良好的分散状态。 此外,即使在高频带,由镍粉制成的内电极也可以具有低阻抗值。

    Method of manufacturing stack-type capacitor and semiconductor memory device having the stack-type capacitor
    5.
    发明授权
    Method of manufacturing stack-type capacitor and semiconductor memory device having the stack-type capacitor 有权
    具有堆叠型电容器的堆叠型电容器和半导体存储器件的制造方法

    公开(公告)号:US07875525B2

    公开(公告)日:2011-01-25

    申请号:US12289966

    申请日:2008-11-07

    IPC分类号: H01L21/20

    摘要: A stack-type capacitor includes a lower electrode, a dielectric layer formed on the lower electrode, and an upper electrode formed on the dielectric layer, wherein the lower electrode includes a first metal layer having a cylindrical shape and a second metal layer filled in the first metal layer. In the capacitor, an amount of oxygen included in the lower electrode is decreased to suppress oxidation of a TiN layer. Thus, a stable stack-type capacitor may be formed, which increases greatly the performance of highly integrated DRAMs.

    摘要翻译: 堆叠型电容器包括下电极,形成在下电极上的电介质层和形成在电介质层上的上电极,其中下电极包括具有圆柱形状的第一金属层和填充在第二金属层中的第二金属层 第一金属层。 在电容器中,下部电极中包含的氧的量减少以抑制TiN层的氧化。 因此,可以形成稳定的堆叠型电容器,这大大增加了高度集成的DRAM的性能。

    Non-magnetic nickel powders and method for preparing the same
    7.
    发明申请
    Non-magnetic nickel powders and method for preparing the same 失效
    非磁性镍粉及其制备方法

    公开(公告)号:US20070181227A1

    公开(公告)日:2007-08-09

    申请号:US11710406

    申请日:2007-02-26

    IPC分类号: C22C19/03

    摘要: Provided are non-magnetic nickel powders and a method for preparing the same. The nickel powders are non-magnetic and have a HCP crystal structure. An exemplary method includes (a) dispersing nickel powders with a FCC crystal structure in an organic solvent to prepare a starting material dispersion, and (b) heating the starting material dispersion to transform the nickel powders with the FCC crystal structure to the nickel powders with the HCP crystal structure. The nickel powders do not exhibit magnetic agglomeration or aggregation phenomenon. Therefore, exemplary pastes for inner electrode formation in various electronic devices, which contain the nickel powders of the present disclosure, can be provided in a relatively uniform, well-dispersed state because of the reduced aggregation and agglomeration of the nickel powder. Also, inner electrodes made of the nickel powders can have a low impedance value even at high frequency band.

    摘要翻译: 提供非磁性镍粉末及其制备方法。 镍粉是非磁性的,具有HCP晶体结构。 一种示例性方法包括(a)将FCC晶体结构的镍粉分散在有机溶剂中以制备原料分散体,和(b)加热原料分散体以将具有FCC晶体结构的镍粉转化为镍粉, HCP晶体结构。 镍粉末不会发生磁性聚集或聚集现象。 因此,由于镍粉的聚集和聚集减少,所以可以以相对均匀的,良好分散的状态提供包含本公开的镍粉末的各种电子器件中的内部电极形成的示例性糊料。 此外,即使在高频带,由镍粉制成的内电极也可以具有低阻抗值。

    Method of manufacturing stack-type capacitor and semiconductor memory device having the stack-type capacitor
    8.
    发明申请
    Method of manufacturing stack-type capacitor and semiconductor memory device having the stack-type capacitor 有权
    具有堆叠型电容器的堆叠型电容器和半导体存储器件的制造方法

    公开(公告)号:US20090075450A1

    公开(公告)日:2009-03-19

    申请号:US12289966

    申请日:2008-11-07

    IPC分类号: H01L21/20

    摘要: A stack-type capacitor includes a lower electrode, a dielectric layer formed on the lower electrode, and an upper electrode formed on the dielectric layer, wherein the lower electrode includes a first metal layer having a cylindrical shape and a second metal layer filled in the first metal layer. In the capacitor, an amount of oxygen included in the lower electrode is decreased to suppress oxidation of a TiN layer. Thus, a stable stack-type capacitor may be formed, which increases greatly the performance of highly integrated DRAMs.

    摘要翻译: 堆叠型电容器包括下电极,形成在下电极上的电介质层和形成在电介质层上的上电极,其中下电极包括具有圆柱形状的第一金属层和填充在第二金属层中的第二金属层 第一金属层。 在电容器中,下部电极中包含的氧的量减少以抑制TiN层的氧化。 因此,可以形成稳定的堆叠型电容器,这大大增加了高度集成的DRAM的性能。