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1.发明授权公开(公告)号：US07786036B2
公开(公告)日：2010-08-31
申请号：US11795128
申请日：2006-03-24
申请人： Kazuhiro Komatsu , Kazuki Hirata , Atsuo Nagai , Tadashi Onomi , Kenji Oka
发明人： Kazuhiro Komatsu , Kazuki Hirata , Atsuo Nagai , Tadashi Onomi , Kenji Oka
IPC分类号： C04B35/468
CPC分类号： C04B35/4682 , C04B35/62685 , C04B2235/3206 , C04B2235/3215 , C04B2235/3217 , C04B2235/3224 , C04B2235/3239 , C04B2235/3263 , C04B2235/3418 , C04B2235/5409 , C04B2235/5445 , C04B2235/658 , C04B2235/6582 , C04B2235/6588 , C04B2235/663 , C04B2235/79 , C04B2235/96 , H01B3/12 , H01G4/1227 , H01G4/30
摘要： A dielectric ceramic composition containing at least 0.15 to 2.5 mol of a Mg compound in terms of MgO, 0 to 1.6 mol of a Ba compound in terms of BaCO3, 0.1 to 3.0 mol of a Ln (Ln includes two or three kinds of elements selected from Er, Dy, and Ho with Er being essential) compound in terms of Ln2O3, 0.01 to 0.4 mol of a Mn compound in terms of MnO4/3, 0.01 to 0.26 mol of a V compound in terms of V2O5, 0.3 to 3.5 mol of a Si compound in terms of SiO2, and 0.01 to 2.5 mol of an Al compound in terms of Al2O3 to 100 mol of barium titanate adjusted for a Ba/Ti molar ratio of 0.997 to 1.007.
摘要翻译： 一种电介质陶瓷组合物，其包含至少0.15至2.5摩尔的Mg化合物，以MgO计，0至1.6摩尔Ba化合物，以BaCO 3计，0.1至3.0摩尔的Ln（Ln包括选择的两种或三种元素 从Er，Dy和Ho与Er是必需的）化合物以Ln 2 O 3计，0.01〜0.4mol的Mn化合物换算成MnO 4/3，0.01〜0.26mol V化合物，V2O5为0.3〜3.5mol 的Si化合物，以SiO 2为0.01〜2.5摩尔的Al化合物，以Ba 2 Ti摩尔比为0.997〜1.007调节的Al 2 O 3〜100摩尔的钛酸钡。
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2.发明申请Dielectric Porcelain Composition, and Method for Manufacturing Capacitor Using the Same 有权介电瓷组合物及使用其制造电容器的方法公开(公告)号：US20080115876A1
公开(公告)日：2008-05-22
申请号：US11795128
申请日：2006-03-24
申请人： Kazuhiro Komatsu , Kazuki Hirata , Atsuo Nagai , Tadashi Onomi , Kenji Oka
发明人： Kazuhiro Komatsu , Kazuki Hirata , Atsuo Nagai , Tadashi Onomi , Kenji Oka
IPC分类号： B32B38/00 , C04B35/468
CPC分类号： C04B35/4682 , C04B35/62685 , C04B2235/3206 , C04B2235/3215 , C04B2235/3217 , C04B2235/3224 , C04B2235/3239 , C04B2235/3263 , C04B2235/3418 , C04B2235/5409 , C04B2235/5445 , C04B2235/658 , C04B2235/6582 , C04B2235/6588 , C04B2235/663 , C04B2235/79 , C04B2235/96 , H01B3/12 , H01G4/1227 , H01G4/30
摘要： A dielectric ceramic composition containing at least 0.15 to 2.5 mol of a Mg compound in terms of MgO, 0 to 1.6 mol of a Ba compound in terms of BaCO3, 0.1 to 3.0 mol of a Ln (Ln includes two or three kinds of elements selected from Er, Dy, and Ho with Er being essential) compound in terms of Ln2O3, 0.01 to 0.4 mol of a Mn compound in terms of MnO4/3, 0.01 to 0.26 mol of a V compound in terms of V2O5, 0.3 to 3.5 mol of a Si compound in terms of SiO2, and 0.01 to 2.5 mol of an Al compound in terms of Al2O3 to 100 mol of barium titanate adjusted for a Ba/Ti molar ratio of 0.997 to 1.007.
摘要翻译： 一种电介质陶瓷组合物，其包含至少0.15至2.5摩尔的Mg化合物，以MgO计，0至1.6摩尔Ba化合物以BaCO 3 3计，0.1至3.0摩尔的Ln（Ln 包括选自Er，Dy和Ho中的两种或三种元素，其中Er是必需的）化合物，根据Ln 2 O 3 3，0.01至0.4mol的Mn 化合物的MnO 3/3/3，0.01〜0.26摩尔V化合物，以V 2 O 5 N计，0.3〜3.5摩尔 的Si化合物，以SiO 2 2计，0.01〜2.5摩尔Al化合物，以Al 2 O 3〜100摩尔 的Ba / Ti摩尔比为0.997〜1.007的钛酸钡。
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公开(公告)号：US07335328B2
公开(公告)日：2008-02-26
申请号：US10502602
申请日：2003-10-24
申请人： Kazuki Hirata , Kenji Oka , Kazuhiro Komatsu , Atsuo Nagai
发明人： Kazuki Hirata , Kenji Oka , Kazuhiro Komatsu , Atsuo Nagai
CPC分类号： H01G4/30 , H01G4/1227
摘要： A method of manufacturing a multilayer ceramic capacitor includes the steps of: preparing a mixture of a raw material powder mainly composed of barium titanate particles; forming the mixture and a binder into a green sheet; alternately layering the green sheet and an internal electrode to obtain a laminated body; and sintering the laminated body. The step of preparing the mixture includes the steps of: introducing the raw material powder and the dispersion medium into a mixing container, and stirring them with balls serving as a mixing medium, to obtain a slurry containing a raw material powder mixture; and drying the slurry. The mixing medium has a diameter that is equal to or less than 400 times the mean particle size of the barium titanate particles of the raw material. The present invention provides a multilayer ceramic capacitor having good DC bias characteristics by suppressing the variation in crystal particles.
摘要翻译： 制造多层陶瓷电容器的方法包括以下步骤：制备主要由钛酸钡颗粒组成的原料粉末的混合物; 将所述混合物和粘合剂形成生片; 交替层叠生片和内部电极以获得层压体; 并烧结层叠体。 制备混合物的步骤包括以下步骤：将原料粉末和分散介质引入混合容器中，并用作为混合介质的滚珠搅拌，得到含有原料粉末混合物的浆料; 并干燥浆料。 混合介质的直径等于或小于原料的钛酸钡颗粒的平均粒度的400倍。 本发明通过抑制晶体颗粒的变化来提供具有良好DC偏置特性的多层陶瓷电容器。
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公开(公告)号：US06947276B2
公开(公告)日：2005-09-20
申请号：US10502620
申请日：2003-10-24
申请人： Kazuki Hirata , Kenji Oka , Kazuhiro Komatsu , Atsuo Nagai
发明人： Kazuki Hirata , Kenji Oka , Kazuhiro Komatsu , Atsuo Nagai
CPC分类号： C04B35/4682 , B32B2311/22 , C04B2235/3206 , C04B2235/3224 , C04B2235/3263 , C04B2235/3418 , C04B2235/5409 , C04B2235/5445 , C04B2235/6025 , C04B2235/6582 , C04B2235/6587 , C04B2237/346 , C04B2237/405 , H01G4/1227 , Y10T29/43 , Y10T29/435 , Y10T29/49126 , Y10T29/49128
摘要： The present invention relates to a method of manufacturing a multilayer ceramic capacitor, having the steps of: (a) alternately layering internal electrodes and ceramic green sheets containing a ceramic material having barium titanate to form a laminated body; (b) sintering the laminated body to obtain a sintered body; and (c) forming an external electrode on end faces of the sintered body to obtain a multilayer ceramic capacitor. The barium titanate has a diffraction line derived from (002) plane and a diffraction line derived from (200) plane in an X-ray diffraction chart. The ratio I(200)/Ib of peak intensity I(200) at 2θ(200) to diffraction intensity Ib at a midpoint angle between peak angle 2θ(002) of the diffraction line derived from the (002) plane and peak angle 2θ(200) of the diffraction line derived from the (200) plane is 2 to 10. The product r·Sa of mean particle size r (μm) of the barium titanate and specific surface area Sa (m2/g) is 1 to 2.
摘要翻译： 本发明涉及一种制造多层陶瓷电容器的方法，具有以下步骤：（a）将包含具有钛酸钡的陶瓷材料的内部电极和陶瓷生坯交替层叠以形成层压体; （b）烧结层压体以获得烧结体; （c）在烧结体的端面上形成外部电极，得到多层陶瓷电容器。 在X射线衍射图中，钛酸钡具有衍生自（002）面的衍射线和衍生自（200）面的衍射线。 （2）（200）的峰强度I（200）的比值I（200）/ I B （002）面的衍射线的峰角2θ（002）与峰角2θ（200°）之间的中点角度处的衍射强度I 衍生自（200）面的衍射线的为2〜10。钛酸钡的平均粒径r（母体）与比表面积Sa（m <2） SUP> / g）为1〜2。
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公开(公告)号：US20050102808A1
公开(公告)日：2005-05-19
申请号：US10502620
申请日：2003-10-24
申请人： Kazuki Hirata , Kenji Oka , Kazuhiro Komatsu , Atsuo Nagai
发明人： Kazuki Hirata , Kenji Oka , Kazuhiro Komatsu , Atsuo Nagai
CPC分类号： C04B35/4682 , B32B2311/22 , C04B2235/3206 , C04B2235/3224 , C04B2235/3263 , C04B2235/3418 , C04B2235/5409 , C04B2235/5445 , C04B2235/6025 , C04B2235/6582 , C04B2235/6587 , C04B2237/346 , C04B2237/405 , H01G4/1227 , Y10T29/43 , Y10T29/435 , Y10T29/49126 , Y10T29/49128
摘要： The present invention relates to a method of manufacturing a multilayer ceramic capacitor, comprising the steps of: (a) alternately layering internal electrodes and ceramic green sheets containing a ceramic material comprising barium titanate to form a laminated body; (b) sintering the laminated body to obtain a sintered body; and (c) forming an external electrode on end faces of the sintered body to obtain a multilayer ceramic capacitor. The barium titanate has a diffraction line derived from (002) plane and a diffraction line derived from (200) plane in an X-ray diffraction chart. The ratio I(200)/Ib of peak intensity I(200)at 2θ(200) to diffraction intensity Ib at a midpoint angle between peak angle 2θ(002) of the diffraction line derived from the (002) plane and peak angle 2θ(200) of the diffraction line derived from the (200) plane is 2 to 10. The product r·Sa of mean particle size r (μm) of the barium titanate and specific surface area Sa (m2/g) is 1 to 2.
摘要翻译： 本发明涉及一种制造多层陶瓷电容器的方法，包括以下步骤：（a）将包含钛酸钡的陶瓷材料的内部电极和陶瓷生片交替层叠以形成层压体; （b）烧结层压体以获得烧结体; （c）在烧结体的端面上形成外部电极，得到多层陶瓷电容器。 在X射线衍射图中，钛酸钡具有衍生自（002）面的衍射线和衍生自（200）面的衍射线。 （2）（200）的峰强度I（200）的比值I（200）/ I B （002）面的衍射线的峰角2θ（002）与峰角2θ（200°）之间的中点角度处的衍射强度I 衍生自（200）面的衍射线的为2〜10。钛酸钡的平均粒径r（母体）与比表面积Sa（m <2） SUP> / g）为1〜2。
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公开(公告)号：US20050116393A1
公开(公告)日：2005-06-02
申请号：US10502602
申请日：2003-10-24
申请人： Kazuki Hirata , Kenji Oka , Kazuhiro Komatsu , Atsuo Nagai
发明人： Kazuki Hirata , Kenji Oka , Kazuhiro Komatsu , Atsuo Nagai
CPC分类号： H01G4/30 , H01G4/1227
摘要： A method of manufacturing a multilayer ceramic capacitor includes the steps of: preparing a mixture of a raw material powder mainly composed of barium titanate particles; forming the mixture and a binder into a green sheet; alternately layering the green sheet and an internal electrode to obtain a laminated body; and sintering the laminated body. The step of preparing the mixture includes the steps of: introducing the raw material powder and the dispersion medium into a mixing container, and stirring them with balls serving as a mixing medium, to obtain a slurry containing a raw material powder mixture; and drying the slurry. The mixing medium has a diameter that is equal to or less than 400 times the mean particle size of the barium titanate particles of the raw material. The present invention provides a multilayer ceramic capacitor having good DC bias characteristics by suppressing the variation in crystal particles.
摘要翻译： 制造多层陶瓷电容器的方法包括以下步骤：制备主要由钛酸钡颗粒组成的原料粉末的混合物; 将所述混合物和粘合剂形成生片; 交替层叠生片和内部电极以获得层压体; 并烧结层叠体。 制备混合物的步骤包括以下步骤：将原料粉末和分散介质引入混合容器中，并用作为混合介质的滚珠搅拌，得到含有原料粉末混合物的浆料; 并干燥浆料。 混合介质的直径等于或小于原料的钛酸钡颗粒的平均粒度的400倍。 本发明通过抑制晶体颗粒的变化来提供具有良好DC偏置特性的多层陶瓷电容器。
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公开(公告)号：US20080316676A1
公开(公告)日：2008-12-25
申请号：US11575338
申请日：2005-09-07
申请人： Hiroki Moriwake , Kazuki Hirata , Atsuo Nagai , Kazuhiro Komatsu
发明人： Hiroki Moriwake , Kazuki Hirata , Atsuo Nagai , Kazuhiro Komatsu
CPC分类号： C04B35/4682 , B32B18/00 , C04B2235/3206 , C04B2235/3224 , C04B2235/3239 , C04B2235/3267 , C04B2235/36 , C04B2235/5445 , C04B2235/761 , C04B2237/704 , H01G4/1227 , Y10T29/435
摘要： Material powder having a tetragonal perovskite crystal structure essentially containing BaTiO3 is provided. The material powder has a c-axis/a-axis ratio ranging from 1.009 to 1.011 and an average particle diameter not larger than 0.5 μm. A dielectric layer is provided by mixing the material powder with additive. The dielectric layer has a tetragonal perovskite crystal structure essentially containing BaTiO3. The dielectric layer has a c-axis/a-axis ratio ranging from 1.005 to 1.009 and an average particle diameter not larger than 0.5 μm. An electrode is formed on the dielectric layer, thus, providing a ceramic capacitor. This ceramic capacitor has a large capacitance and a small capacitance-decreasing rate.
摘要翻译： 提供了具有基本上含有BaTiO 3的四方晶体钙钛矿晶体结构的材料粉末。 该材料粉末的c轴/ a轴比为1.009〜1.011，平均粒径为0.5μm以下。 通过将材料粉末与添加剂混合来提供电介质层。 电介质层具有基本上含有BaTiO 3的四方晶系钙钛矿晶体结构。 电介质层的c轴/ a轴比为1.005〜1.009，平均粒径为0.5μm以下。 在电介质层上形成电极，从而提供陶瓷电容器。 该陶瓷电容器具有大的电容和小的电容减小率。
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公开(公告)号：US06845002B2
公开(公告)日：2005-01-18
申请号：US10473367
申请日：2003-02-05
申请人： Hiroki Moriwake , Atsuo Nagai , Kazuhiro Komatsu
发明人： Hiroki Moriwake , Atsuo Nagai , Kazuhiro Komatsu
CPC分类号： H01G4/1227 , B32B18/00 , C04B35/4682 , C04B35/6281 , C04B2235/3206 , C04B2235/3215 , C04B2235/3217 , C04B2235/3224 , C04B2235/3236 , C04B2235/3239 , C04B2235/3267 , C04B2235/36 , C04B2235/5445 , C04B2235/761 , C04B2235/785 , C04B2237/704
摘要： In present invention, the c-axis/a-axis ratio is set in the range of 1.005 through 1.009 in a tetragonal-perovskite-type crystal structure of BaTiO3. The present invention provides a ceramic capacitor having a large capacity and a method of manufacturing it.
摘要翻译： 在本发明中，在BaTiO 3的四方晶系钙钛矿型晶体结构中，c轴/ a轴比设定在1.005〜1.009的范围内。 本发明提供一种容量大的陶瓷电容器及其制造方法。
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9.发明授权Dielectric ceramic composition, capacitor using this and production method thereof 有权介电陶瓷组合物，使用该电容器的电容器及其制造方法公开(公告)号：US06344427B1
公开(公告)日：2002-02-05
申请号：US09673513
申请日：2000-11-29
IPC分类号： C04B34468
CPC分类号： H01G4/1227 , C04B35/4682 , C04B35/6262 , C04B35/6264 , C04B35/6303 , C04B35/64 , C04B2235/3206 , C04B2235/3217 , C04B2235/3224 , C04B2235/3239 , C04B2235/3263 , C04B2235/3418 , C04B2235/36 , C04B2235/5409 , C04B2235/6025 , C04B2235/652 , C04B2235/658 , C04B2235/6582 , C04B2235/6588 , C04B2235/663 , C04B2235/79 , C04B2235/96 , H01B3/12
摘要： A dielectric ceramic composition of the present invention is a mixture of barium titanate as a main component whose Ba/Ti molar ratio ranging from 1.001 to 1.05 and sub components comprising, at least 0.5 to 5.0 mol of Mg in the form of MgO, 0.1 to 3.0 mol of Dy in the form of Dy2O3, 0.01 to 0.4 mol of Mn in the form of Mn3O4, 0.01 to 0.26 mol of V in the form of V2O5, 0.3 to 3.5 mol of Si in the form of SiO2 and 0.01 to 3.0 mol of Al in the form of Al2O3 per 100 mol of the barium titanate. Even when external electrodes are made of base metal such as copper or the like, a multilayer capacitor whose dielectric layers are not reduced and have high insulation resistance can be obtained by using the dielectric ceramic composition of the present invention.
摘要翻译： 本发明的电介质陶瓷组合物是Ba / Ti摩尔比为1.001〜1.05的主要成分的钛酸钡的混合物，MgO的组成为至少0.5〜5.0摩尔的Mg，0.1〜 Dy 3 O 3的Dy为3.0摩尔，Mn 3 O 4形式的Mn为0.01〜0.4摩尔，V2O5形式的V为0.01〜0.26摩尔，SiO 2为0.3〜3.5摩尔，SiO 2为0.01〜3.0摩尔 的铝每100摩尔钛酸钡的Al 2 O 3形式。 即使当外部电极由诸如铜等的基底金属制成时，也可以通过使用本发明的电介质陶瓷组合物来获得电介质层不被还原并具有高绝缘电阻的层叠电容器。
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公开(公告)号：US07687874B2
公开(公告)日：2010-03-30
申请号：US11702203
申请日：2007-02-05
申请人： Kazuhiro Komatsu , Yasushi Sakuma , Daisuke Nakai , Kaoru Okamoto , Ryu Washino
发明人： Kazuhiro Komatsu , Yasushi Sakuma , Daisuke Nakai , Kaoru Okamoto , Ryu Washino
IPC分类号： H01L31/105 , H01L29/868
CPC分类号： H01L31/075 , H01L31/022408 , Y02E10/548
摘要： In a mesa type PIN-PD formed using a heavily doped semiconductor material, a high frequency response is degraded as slow carriers occur in a heavily doped layer when light incident into a light receiving section transmits through an absorbing layer and reaches the heavily doped layer on a side near the substrate. In a p-i-n multilayer structure, a portion corresponding to a light receiving section of a heavily doped layer on a side near a substrate is previously made thinner than the periphery of the light receiving section by an etching or selective growth technique, over which an absorbing layer and another heavily doped layer are grown to form the light receiving section of mesa structure. This makes it possible to form a good ohmic contact and to realize a PIN-PD with excellent high frequency response characteristics.
摘要翻译： 在使用重掺杂半导体材料形成的台面型PIN-PD中，当入射到光接收部分中的光透射通过吸收层并到达重掺杂层时，在重掺杂层中出现慢载流子时，高频响应降低 靠近基板的一侧。 在pin多层结构中，通过蚀刻或选择性生长技术，预先使与基底附近一侧的重掺杂层的光接收部分对应的部分比光接收部分的周边薄， 并且生长另一重掺杂层以形成台面结构的光接收部分。 这使得可以形成良好的欧姆接触并实现具有优异的高频响应特性的PIN-PD。
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