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1.发明授权Laminated ceramic capacitor having a reduction-resistant dielectric ceramic that includes grains 有权具有包含晶粒的还原性电介质陶瓷的层压陶瓷电容器公开(公告)号：US06292354B1
公开(公告)日：2001-09-18
申请号：US09603043
申请日：2000-06-26
IPC分类号： H01G406
CPC分类号： H01G4/1227 , C04B35/4682
摘要： The present invention provides a laminated ceramic capacitor having good temperature characteristics, and suitable for attaining miniaturization, large capacitance and low production cost besides having high reliability in the high temperature load test, wherein a plurality of inner electrodes are formed in a ceramic sintered body comprising a reduction resistant dielectric ceramic in which grains having a core-shell structure and grains having a homogeneous structure are mixed together, and wherein outer electrodes are formed on the outer surfaces of the ceramic sintered body, the area ratio between the total area of the grains having the core-shell structure and the total area of the grains having the homogeneous structure being adjusted within a the range of about 2:8 to 4:6 when a cross section is observed along an arbitrary direction of the ceramic sintered body.
摘要翻译： 本发明提供一种具有良好温度特性的层压陶瓷电容器，除了在高温负载试验中具有高可靠性之外，还适合于实现小型化，大电容化和低生产成本，其中在陶瓷烧结体中形成多个内电极，其包括 将具有核 - 壳结构的晶粒和具有均匀结构的晶粒混合在一起的抗还原电介质陶瓷，其中在陶瓷烧结体的外表面上形成外电极，晶粒的总面积之间的面积比 当沿着陶瓷烧结体的任意方向观察截面时，具有核 - 壳结构和具有均匀结构的晶粒的总面积在约2：8〜4：6的范围内调整。
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公开(公告)号：US6014309A
公开(公告)日：2000-01-11
申请号：US75668
申请日：1998-05-11
申请人： Yasushi Ueno , Yoshikazu Takagi , Kazuaki Kawabata , Nagato Omori
发明人： Yasushi Ueno , Yoshikazu Takagi , Kazuaki Kawabata , Nagato Omori
CPC分类号： H01G4/30
摘要： There is provided a highly reliable laminated ceramic electronic part in which delamination or crack can be suppressed from occurring during a sintering process even if a number of lamination of internal electrodes is increased and a thickness of the ceramic layer is reduced and which excels in thermal shock resistance. The laminated ceramic electronic part is constructed so as to satisfy the following requirements of that a thickness of the ceramic layer is 10 .mu.m or less; a number of lamination of the internal electrodes is 200 or more; a ratio of a thickness of the internal electrode to the thickness of the ceramic layer (thickness of internal electrode/thickness of ceramic layer) is 0.10 to 0.40; and a ratio of a volume of the internal electrode to a volume of the ceramic element (volume of internal electrodes/volume of ceramic element) is 0.10 to 0.30.
摘要翻译： 提供了一种高度可靠的层叠陶瓷电子部件，其中即使内部电极的层压增加并且陶瓷层的厚度减小并且热冲击优异，也可以在烧结过程中抑制分层或裂纹发生 抵抗性。 层叠陶瓷电子部件的结构要满足陶瓷层的厚度为10μm以下的要求。 内部电极的层叠数为200个以上; 内部电极的厚度与陶瓷层的厚度的比例（内部电极的厚度/陶瓷层的厚度）为0.10〜0.40; 并且内部电极的体积与陶瓷元件的体积（内部电极的体积/陶瓷元件的体积）的比率为0.10〜0.30。
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3.发明授权Method of sorting monolithic ceramic capacitors by measuring the insulation resistance thereof 有权通过测量其绝缘电阻来分选叠层陶瓷电容器的方法公开(公告)号：US06476617B1
公开(公告)日：2002-11-05
申请号：US09425079
申请日：1999-10-21
IPC分类号： G01R3112
CPC分类号： G01R31/022
摘要： A sorting method of monolithic ceramic capacitors in which high reliable sorting can be efficiently achieved based on measuring an insulating resistance involves first performing a burn-in process, which applies not less than double of the rated voltage at the maximum working temperature to a monolithic ceramic capacitor. Thereafter, a high temperature insulation resistance measuring process, which involves measuring an insulation resistance while applying not less than the rated voltage at a temperature of not less than 70° C. to the monolithic ceramic capacitor, is performed so that monolithic ceramic capacitors having abnormal insulation resistances are eliminated. Preferably, the direction of applied voltage in the burn-in process agrees with the direction of applied voltage in the high temperature insulation resistance measuring process.
摘要翻译： 可以通过测量绝缘电阻有效地实现高可靠性分选的叠层陶瓷电容器的分选方法包括首先进行老化过程，其将不低于最大工作温度下的额定电压的两倍应用于单块陶瓷 电容器。 此后，进行耐温绝缘电阻测定工序，其包括在不低于70℃的温度下施加不低于额定电压的单元陶瓷电容器时测量绝缘电阻，使得具有异常的单片陶瓷电容器 绝缘电阻被消除。 优选地，老化过程中施加电压的方向与高温绝缘电阻测量过程中施加电压的方向一致。
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公开(公告)号：US06433992B1
公开(公告)日：2002-08-13
申请号：US09749974
申请日：2000-12-28
IPC分类号： H01G430
摘要： A monolithic capacitor includes a plurality of monolithic ceramic capacitor elements provided with external electrodes at both ends thereof, solder layers arranged on the entire surfaces of the external electrodes of the monolithic ceramic capacitor elements, and metal terminals electrically connected to the external electrodes of the monolithic ceramic capacitor elements. The monolithic ceramic capacitor elements are joined to each other by the solder layers and are stacked on each other. The external electrodes of the monolithic ceramic capacitor elements are electrically connected to each other by the solder layers.
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公开(公告)号：US06381117B1
公开(公告)日：2002-04-30
申请号：US09656724
申请日：2000-09-07
IPC分类号： H01G4228
CPC分类号： H01G4/232 , H01G2/065 , H01G2/14 , H01G4/005 , H05K3/3442 , H05K2201/10636 , H05K2201/10909 , Y02P70/611 , Y02P70/613
摘要： A ceramic electronic component includes at least one component body having two end faces opposing each other and side faces connecting the two end faces, and terminal electrodes formed on the component body. Each of the terminal electrodes extends from each end face to edge portions of each side face of the component body. Each of the terminal electrodes includes a metal layer formed on at least each end face of the component body, a conductive resin layer for covering at least portions of the side faces of the component body, and a metal plating film covering the outer surface of the terminal electrode. The conductive resin layer extends from the metal layer including the edge of the metal layer to the portions of the side faces, and includes a conductive resin containing metal powder and resin. The thickness of the conductive resin layer above the side faces is at least about 10 &mgr;m.
摘要翻译： 陶瓷电子部件包括具有彼此相对的两个端面和连接两个端面的侧面和形成在部件主体上的端子电极的至少一个部件主体。 每个端子电极从每个端面延伸到组件主体的每个侧面的边缘部分。 每个端子电极包括形成在组件主体的至少每个端面上的金属层，用于覆盖组件主体的至少一部分侧面的导电树脂层和覆盖组件主体的外表面的金属镀膜 端子电极。 导电树脂层从包括金属层的边缘的金属层延伸到侧面的部分，并且包括含有金属粉末和树脂的导电树脂。 侧面上方的导电树脂层的厚度为至少约10μm。
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公开(公告)号：US06377439B1
公开(公告)日：2002-04-23
申请号：US09615651
申请日：2000-07-13
IPC分类号： H01G4005
CPC分类号： H01G4/005 , H01G4/30 , Y10T428/24926
摘要： An electronic multilayer ceramic component is disclosed which is less susceptible to having a crack or delamination in a sintered ceramic block and has high thermal shock resistance, high humidity resistance, and high reliability. Dimensional parameters EW, WG, T, and G of the electronic multilayer ceramic component are determined such that the following conditions are satisfied: WG/EW≧0.3; and T/G≦7.0, where EW is the width of inner electrodes, WG is the width of a side gap region between the ends of the inner electrodes and one of side faces of a sintered ceramic block, T is the thickness of a region in which the plurality of inner electrodes are laminated, and G is the thickness of one of the outermost ceramic layers parallel to the plurality of inner electrodes and located outside the region in which the plurality of inner electrodes are laminated.
摘要翻译： 公开了一种电子多层陶瓷组件，其不太可能在烧结陶瓷块中具有裂纹或分层，并且具有高耐热冲击性，高耐湿性和高可靠性。 确定电子多层陶瓷部件的尺寸参数EW，WG，T和G，使得满足以下条件：WG / EW> = 0.3; 和T / G <= 7.0，其中EW是内部电极的宽度，WG是内部电极的端部与烧结陶瓷块的一个侧面之间的侧面间隙区域的宽度，T是 多个内部电极层叠的区域，G是与多个内部电极平行且位于多个内部电极层叠的区域外的最外层陶瓷层之一的厚度。
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7.发明授权Sorting method of monolithic ceramic capacitors based on insulation resistance 有权基于绝缘电阻的单片陶瓷电容器的分选方法公开(公告)号：US06469517B1
公开(公告)日：2002-10-22
申请号：US09480275
申请日：2000-01-11
IPC分类号： G01R3112
CPC分类号： G01R31/022
摘要： In the temperature of 70-140 degrees C., the burn-in process of applying a voltage to monolithic ceramic capacitors so that the strength of the electric field applied between the internal electrodes opposing each other may be 7 30 kV/mm is performed. Subsequently, the insulation resistance of the monolithic ceramic capacitor is measured. The monolithic ceramic capacitors are sorted based on the insulation resistance measured during this insulation-resistance measurement process. In this case, it is sufficient to apply the burn-in process for 2-300 seconds.
摘要翻译： 在70-140℃的温度下，进行向叠层陶瓷电容器施加电压的老化过程，使得施加在彼此相对的内部电极之间的电场强度可以为7×30kV / mm。 随后，测量单片陶瓷电容器的绝缘电阻。 基于在该绝缘电阻测量过程中测量的绝缘电阻来分选单片陶瓷电容器。 在这种情况下，将老化过程应用到2-300秒就够了。
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公开(公告)号：US06292353B1
公开(公告)日：2001-09-18
申请号：US09593570
申请日：2000-06-14
IPC分类号： H01G406
CPC分类号： H01G4/232 , H01G4/30 , H05K3/3442 , Y10T428/24777 , Y10T428/24917
摘要： The present invention provides a reliable ceramic electronic component in which cracks are hardly generated in the ceramic sintered body when a heat impact is applied or even when a stress caused by bending of a printed circuit board after packaging is applied, wherein inner electrodes are disposed in the ceramic sintered body, and wherein a first and second outer electrodes are formed so as to cover the first and second end faces, the first and second outer electrodes comprising electrode cover members extending to the upper face and lower face, up to both side faces of the ceramic sintered body, and the distance e and the distance Lg satisfying the relation of 1.5×Lg≦e≦3.5×Lg, where e denotes a distance between the outermost side edge of the outer electrode and the inner side edge of the electrode cover member of the outer electrode, and Lg denotes the distance between the outermost side edge of the outer electrode and the tip of the inner electrode electrically connected to the outer electrode.
摘要翻译： 本发明提供了一种可靠的陶瓷电子部件，其中当施加热冲击时或陶瓷烧结体中几乎不产生裂纹，或者当施加包装后印刷电路板的弯曲引起的应力时，内部电极设置在 陶瓷烧结体，并且其中形成第一和第二外部电极以覆盖第一和第二端面，第一和第二外部电极包括延伸到上表面和下表面的电极盖构件，直到两个侧面 ，距离e和距离Lg满足1.5×Lg <= e <= 3.5×Lg的关系，其中e表示外电极的最外侧边缘与电极的内侧边缘之间的距离 外部电极的盖构件，Lg表示外部电极的最外侧边缘与内部电极的与前述电极连接的内部电极的前端之间的距离 电极。
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公开(公告)号：US06388864B1
公开(公告)日：2002-05-14
申请号：US09651410
申请日：2000-08-30
IPC分类号： H01G4228
摘要： A ceramic electronic component includes a ceramic electronic component body having two end faces opposing each other, side faces connecting the two end faces, and terminal electrodes formed on each end face; and terminal members, each including a metal being soldered to one of the terminal electrodes. Each of the terminal electrodes includes a metal layer formed only on the end face, a conductive resin layer formed on the metal layer, the conductive resin layer including metal powder and resin, and a plating film on the conductive resin layer.
摘要翻译： 陶瓷电子部件包括陶瓷电子部件体，该陶瓷电子部件主体具有彼此相对的两个端面，连接两个端面的侧面和形成在各个端面上的端子电极; 以及端子构件，每个端子构件包括被焊接到一个端子电极的金属。 每个端子电极包括仅在端面形成的金属层，形成在金属层上的导电树脂层，包括金属粉末和树脂的导电树脂层和在导电树脂层上的镀膜。
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10.发明授权Multilayer capacitor having low equivalent series inductance and controlled equivalent series resistance 有权具有低等效串联电感和受控等效串联电阻的多层电容器公开(公告)号：US08120891B2
公开(公告)日：2012-02-21
申请号：US12335554
申请日：2008-12-16
摘要： In a capacitor body of a multilayer capacitor, one second capacitor portion is sandwiched between two first capacitor portions. An ESR is controlled by setting a width of lead portions of third and fourth internal electrodes disposed in the second capacitor portion to be less than that of lead portions of first and second internal electrodes disposed in the first capacitor portions and by changing ratios between the first and second capacitor portions in the width of the lead portions and in the number of stacked internal electrodes. In the first capacitor portions, current paths from the internal electrodes to an external terminal electrode are widely distributed so that the first capacitor portions have a relatively low ESL, and accordingly, the ESL of the entire multilayer capacitor is reduced.
摘要翻译： 在层叠电容器的电容器体中，一个第二电容器部分夹在两个第一电容器部分之间。 通过将布置在第二电容器部分中的第三和第四内部电极的引线部分的宽度设置为小于设置在第一电容器部分中的第一和第二内部电极的引线部分的宽度，并且通过改变第一 以及在引线部分的宽度和堆叠的内部电极的数量中的第二电容器部分。 在第一电容器部分中，从内部电极到外部端子电极的电流路径广泛分布，使得第一电容器部分具有相对较低的ESL，因此整个层叠电容器的ESL减小。
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