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1. 发明授权

US06656378B2 Piezoelectric ceramic composition reducing leakage current and piezoelectric device using the same 失效
标题翻译：压电陶瓷组合物减少泄漏电流和使用其的压电器件
公开(公告)号：US06656378B2
公开(公告)日：2003-12-02
申请号：US10067814
申请日：2002-02-08
申请人： Sang Koo Kwon , Kang Heon Hur , Jong Kuk Hong , Dong Hwan Seo
发明人： Sang Koo Kwon , Kang Heon Hur , Jong Kuk Hong , Dong Hwan Seo
IPC分类号： H01L41187
CPC分类号： C04B35/493 , C04B2235/3241 , C04B2235/3249 , C04B2235/3258 , C04B2235/3267 , C04B2235/3275 , C04B2235/3296 , H01L41/1876
摘要： Disclosed is a piezoelectric ceramic composition comprising a PZT piezoelectric composition, a B-site of which is substituted with a certain material, and chromium oxide, and a piezoelectric device using the piezoelectric ceramic composition. The piezoelectric ceramic composition has good heat resistance and frequency stability, and reduces a leakage current. There is provided the piezoelectric ceramic composition comprising a main component expressed by Pb[(Co1/2W1/2)xTi1−x−yZry]O3 (wherein, 0.001≦x≦0.04, and 0.35 ≦y≦0.55), Cr2O3 in an amount of 0.01 to 2 wt %, MnO2 in an amount of 0.1 to 0.5 wt %, and an additive in an amount of 0.01 to 2.0 wt %, based on the total weight of the piezoelectric ceramic composition, in which the additive is selected from the group consisting of CoO, MgO, ZnO, Al2O3, Fe2O3, Sb2O3, SnO2, CeO2, Nb2O5, V2O5 and WO3, and mixtures thereof. The piezoelectric ceramic composition satisfies piezoelectric properties such as kp and Qm needed for a piezoelectric material, and is 320° C. or higher in phase transition temperature, ±30 ppm/° C. in TCF, and 0.1% or less in oscillation frequency change after reflow; and the piezoelectric ceramic composition also has good piezoelectric properties such that the leakage current is reduced.
摘要翻译：本发明公开了一种压电陶瓷组合物和使用该压电陶瓷组合物的压电装置，其中PZT压电组合物的B部位用某种材料代替，氧化铬。压电陶瓷组合物具有良好的耐热性和频率稳定性，并且减小了漏电流。提供了包含由Pb [（Co1 / 2W1 / 2）xTi1-x-yZry] O3（其中0.001≤x≤0.04,0.35≤Y＆LE; 0.55）表示的主要成分的压电陶瓷组合物， 0.01〜2.0重量％的MnO 2，0.1〜0.5重量％的MnO 2，0.01〜2.0重量％的添加剂，相对于压电陶瓷组合物的总重量，添加剂为选自CoO，MgO，ZnO，Al2O3，Fe2O3，Sb2O3，SnO2，CeO2，Nb2O5，V2O5和WO3，以及它们的混合物。压电陶瓷组合物满足压电材料所需的压电特性如kp和Qm，在TCF中相变温度为320℃或更高，±30ppm /℃，振荡频率变化为0.1％以下回流后并且压电陶瓷组合物也具有良好的压电性能，使得泄漏电流降低。

2. 发明授权

US06683014B2 Piezoelectric ceramic composition and piezoelectric ceramic device using the same 失效
标题翻译：压电陶瓷组合物和使用其的压电陶瓷装置
公开(公告)号：US06683014B2
公开(公告)日：2004-01-27
申请号：US10206983
申请日：2002-07-30
申请人： Dong Hwan Seo , Kang Heon Hur , Jong Kuk Hong , Sang Koo Kwon
发明人： Dong Hwan Seo , Kang Heon Hur , Jong Kuk Hong , Sang Koo Kwon
IPC分类号： H01L4118
CPC分类号： C04B35/472 , C04B2235/3227 , C04B2235/3234 , C04B2235/3267 , C04B2235/3284 , C04B2235/3296 , C04B2235/5436 , C04B2235/5445 , H01L41/187
摘要： The present invention provides a piezoelectric ceramic composition having the formula: {[Pb(1−1.5x)±(0˜0.2)Lax][Ti(1−y−z)MnyCuz]O3} which meets the requirements: 0.02
摘要翻译：本发明提供一种具有以下结构的压电陶瓷组合物：符合要求的{[Pb（1-1.5×）±（0〜0.2）Lax] [Ti（1-yz）MnyCuz] O 3}：0.02

3. 发明授权

US08174816B2 Ceramic electronic component 有权
标题翻译：陶瓷电子元件
公开(公告)号：US08174816B2
公开(公告)日：2012-05-08
申请号：US12648223
申请日：2009-12-28
申请人： Dong Hwan Seo , Kang Heon Hur , Doo Young Kim
发明人： Dong Hwan Seo , Kang Heon Hur , Doo Young Kim
IPC分类号： H01G4/00
CPC分类号： H01G4/30 , H01G4/232
摘要： There is provided a ceramic electronic component including a ceramic sintered body, internal conductive layers, and external electrodes. Each of the external electrodes includes a first electrode layer, a conductive resin layer covering the first electrode layer, and a second electrode layer covering the conductive resin layer and having an extension length greater than the length of the first electrode layer extending from one of the side surfaces of the ceramic sintered body to the portions of the top and bottom surfaces thereof. The distance from the top or bottom surface of the ceramic sintered body to the closest layer of the internal conductive layers is greater than or equal to the length of the first electrode layer extending from one of the side surfaces of the ceramic sintered body to the portions of the top and bottom surfaces thereof.
摘要翻译：提供了包括陶瓷烧结体，内部导电层和外部电极的陶瓷电子部件。每个外部电极包括第一电极层，覆盖第一电极层的导电树脂层和覆盖导电树脂层的第二电极层，其延伸长度大于从第一电极层之一延伸的第一电极层的长度陶瓷烧结体的侧表面与其顶表面和底表面的部分。从陶瓷烧结体的顶面或底面到内部导电层的最靠近的距离大于或等于从陶瓷烧结体的一个侧面延伸到第一电极层的部分的长度的顶面和底面。

4. 发明授权

US07147835B2 Oxide powder for dielectrics, method of manufacturing oxide powder for dielectrics, and multi-layer ceramic capacitor using the same 有权
标题翻译：用于电介质的氧化物粉末，用于电介质的氧化物粉末的制造方法以及使用其的多层陶瓷电容器
公开(公告)号：US07147835B2
公开(公告)日：2006-12-12
申请号：US10888592
申请日：2004-07-12
申请人： Dong Hwan Seo , Kang Heon Hur , Sung Hyung Kang , Jin Yung Ryu
发明人： Dong Hwan Seo , Kang Heon Hur , Sung Hyung Kang , Jin Yung Ryu
IPC分类号： C01F1/00 , C01F11/00 , C01F17/00 , C01G23/00 , H01G4/06
CPC分类号： C04B35/4682 , C01G23/003 , C01G23/006 , C01P2002/34 , C01P2004/62 , C04B35/62675 , C04B35/62805 , C04B35/6281 , C04B35/62815 , C04B35/62821 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3224 , C04B2235/3232 , C04B2235/5409 , C04B2235/5445 , C04B2235/5481 , C04B2235/768 , C04B2235/79
摘要： Disclosed herein is a small particle oxide powder for dielectrics. The oxide powder has a perovskite structure, an average particle diameter [D50(μm)] of 0.3 μm or less, a particle size distribution of the average particle diameter within 3%, a particle size distribution satisfying a condition D99/D50
摘要翻译：本文公开了一种用于电介质的小颗粒氧化物粉末。氧化物粉末具有钙钛矿结构，平均粒径[D50（母体）]为0.3μm以下，平均粒径在3％以内的粒度分布，满足条件D99 / D50 <2.5的粒度分布， 0.2重量％，C / A轴比为1.006以上的OH基团的含量。制备氧化物粉末的方法包括以下步骤：将TiO 2 2颗粒和由ABO 3的钙钛矿结构的A表示的至少一种元素溶解的化合物; 干燥和粉碎TiO 2和该化合物的混合物; 煅烧粉碎混合物; 将含有位点A的元素的氧化物加入到涂覆的TiO 2颗粒中并进行湿式混合，干燥和粉碎; 主要在真空下煅烧粉碎粉碎粉末; 并二次煅烧和粉碎粉末。

5. 发明授权

US07229035B2 Method of deagglomerating ceramic powder, deagglomeration mill used therefor and method of preparing highly dispersed slurry using the deagglomerated powder 有权
标题翻译：陶瓷粉末的分散方法，用于其的解聚磨和使用解聚粉末制备高分散浆料的方法
公开(公告)号：US07229035B2
公开(公告)日：2007-06-12
申请号：US11023610
申请日：2004-12-29
申请人： Eun Sang Na , Hyeon Pyo Jeon , Dong Hwan Seo , Youn Kyu Choi , Sung Hyung Kang
发明人： Eun Sang Na , Hyeon Pyo Jeon , Dong Hwan Seo , Youn Kyu Choi , Sung Hyung Kang
IPC分类号： B02C19/00
CPC分类号： C04B35/6261 , B02C17/16 , C04B35/4682 , C04B35/62615 , C04B35/62625 , C04B35/6263 , C04B35/62802 , C04B35/62839 , C04B2235/3215 , C04B2235/3236 , C04B2235/5445 , C04B2235/5481 , H01G4/12
摘要： Disclosed herein is a method of deagglomerating ceramic powder to inhibit agglomeration and provide a uniform particle size, a deagglomeration mill used for the above method, and a method of preparing uniformly mixed ceramic slurry using the deagglomerated ceramic powder. The deagglomeration method of the ceramic powder includes loading a mixture of ceramic powder and solvent into the deagglomeration mill which includes a hollow cylindrical mill cover having a diameter larger than a length and having a plurality of beads therein; rotating an impeller of a main shaft disposed longitudinally at an internal center portion of the mill cover at a peripheral velocity of 6–10 m/s, using a driving means; deagglomerating the ceramic powder by the action of beads which are moved by a rotational force of the impeller; and discharging the mixture of ceramic powder and solvent from the deagglomeration mill.
摘要翻译：本文公开了一种使聚集陶瓷粉末抑制团聚并提供均匀粒径的方法，用于上述方法的解聚磨，以及使用解聚陶瓷粉末制备均匀混合的陶瓷浆料的方法。陶瓷粉末的解聚方法包括将陶瓷粉末和溶剂的混合物加载到解聚磨中，其包括直径大于长度的中空圆柱形磨机盖，其中具有多个珠粒; 使用驱动装置以6-10m / s的圆周速度旋转主轴的叶轮纵向设置在所述轧机盖的内部中心部分; 通过由叶轮的旋转力移动的珠粒的作用使陶瓷粉末分散; 并从解聚磨中排出陶瓷粉末和溶剂的混合物。

6. 发明授权

US06936558B2 Low temperature sinterable dielectric ceramic composition, multilayer ceramic chip capacitor and ceramic electronic device 失效
标题翻译：低温烧结介电陶瓷组合物，多层陶瓷片式电容器和陶瓷电子器件
公开(公告)号：US06936558B2
公开(公告)日：2005-08-30
申请号：US10601776
申请日：2003-06-24
申请人： Dong Hwan Seo , Jong Hee Kim , Sung Hyung Kang , Soon Mok Choi , Hyuk Joon Youn
发明人： Dong Hwan Seo , Jong Hee Kim , Sung Hyung Kang , Soon Mok Choi , Hyuk Joon Youn
IPC分类号： C04B35/00 , C03C3/066 , C03C3/068 , C04B35/48 , H01B3/02 , H01B3/12 , H01G4/12 , H05K1/03 , H05K1/16 , C04B35/486
CPC分类号： C03C3/068 , B32B18/00 , B32B2311/12 , C03C3/066 , C04B35/16 , C04B35/481 , C04B2235/3201 , C04B2235/3213 , C04B2235/3215 , C04B2235/3217 , C04B2235/3229 , C04B2235/3244 , C04B2235/3284 , C04B2235/3293 , C04B2235/365 , C04B2235/5445 , C04B2235/656 , C04B2235/6582 , C04B2235/6584 , C04B2235/96 , C04B2237/341 , C04B2237/348 , C04B2237/407 , C04B2237/704 , H01G4/1236 , H05K1/0306 , H05K1/162
摘要： A low temperature sinterable dielectric ceramic composition, as well as a multilayer ceramic chip capacitor and a ceramic electronic device. The dielectric ceramic composition comprises a major composition represented by the general formula: x{αBaO, (1−α)SrO}-y{SiO2}-z{(1−β)ZrO2, β Al2O3} (wherein x, y and z are weight percentages; x+y+z=100, 55≦x≦75, 10≦y≦35, and 5≦z≦30, α and β are moles; 0.4≦α≦0.8, and 0.01≦β≦0.07) and 2 to 10 parts by weight of a Zn—B-silicate glass composition, per 100 parts by weight of the major composition. The multilayer ceramic chip capacitor and a multilayer ceramic circuit board for the electronic device comprise a plurality of dielectric ceramic layers, internal electrodes arrayed inside the dielectric ceramic layers, and outer electrodes electrically connected to the internal electrodes, characterized in that the dielectric ceramic layer is a sintered body of the dielectric ceramic composition mentioned above, and the internal electrode is made of a conductive base metal material.
摘要翻译：低温可烧结介电陶瓷组合物，以及多层陶瓷片状电容器和陶瓷电子器件。介电陶瓷组合物包含由以下通式表示的主要组成：x {αBaO，（1-α）SrO} -y {SiO 2} -z {（1-β）ZrO 2，其中x，y和z是重量百分比; x + y + z = 100,55 <= x < = 75，10 <= y <= 35，5 <= z <= 30，α和β为摩尔数;0.4≤α≤0.8，0.01≤β≤0.07）和2〜10重量份的Zn-B硅酸盐玻璃组合物，每100重量份的主要组成。多层陶瓷片状电容器和用于电子器件的多层陶瓷电路板包括多个电介质陶瓷层，排列在电介质陶瓷层内部的内部电极和与内部电极电连接的外部电极，其特征在于介电陶瓷层为上述介电陶瓷组合物的烧结体，内部电极由导电性基体金属材料构成。

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