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公开(公告)号：US10236125B2
公开(公告)日：2019-03-19
申请号：US15478393
申请日：2017-04-04
发明人： Seok Hyun Yoon , Jung Deok Park , Chang Hak Choi , Dong Hun Kim , Seung Ho Lee , Chan Hee Nam
IPC分类号： C04B35/46 , H01G4/30 , C04B35/468 , H01G4/005 , H01G4/12
摘要： A dielectric ceramic composition contains: a barium titanate-based powder as a main ingredient; a first accessory ingredient containing Na; a second accessory ingredient containing Ba; and a third accessory ingredient containing Si. A content of the first accessory ingredient (based on moles of Na) is 0.3 to 4.0 moles per 100 moles of the main ingredient, and a Ba/Si ratio is in a range of 0.16 to 1.44.
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公开(公告)号：US10056190B2
公开(公告)日：2018-08-21
申请号：US15217194
申请日：2016-07-22
发明人： Seung Heui Lee , Seung Ho Lee , Kyoung Jin Cha , Min Gon Lee
CPC分类号： H01G4/30 , H01G4/008 , H01G4/012 , H01G4/1227 , H01G4/232
摘要： A multilayer ceramic electronic component and a method of manufacturing the same are provided. The multilayer ceramic electronic component includes a ceramic body including dielectric layers, and internal electrodes alternately disposed on the dielectric layers and containing a ceramic additive disposed therein; and external electrodes formed on an outer portion of the ceramic body and electrically connected to the internal electrodes. The ceramic additive is disposed in the internal electrode at a position spaced apart from a boundary between the internal electrode and the dielectric layer by a predetermined distance.
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公开(公告)号：US09159491B2
公开(公告)日：2015-10-13
申请号：US13974759
申请日：2013-08-23
发明人： Min Gon Lee , Seung Ho Lee , Jong Han Kim , Yoon Hee Lee , Sung Hwan Lee
CPC分类号： H01G4/012 , H01G4/0085 , H01G4/12 , H01G4/30
摘要： There is provided a multilayer ceramic electronic component including a ceramic body including dielectric layers, and first and second internal electrodes formed within the ceramic body and disposed to face each other having the respective dielectric layers interposed therebetween, wherein in a cross-section of the ceramic body in a length-thickness (L-T) direction, when an area of non-electrode regions in cover part internal electrodes among the first and second internal electrodes is defined as Acover and an area of non-electrode regions in center part internal electrodes among the first and second internal electrodes is defined as Acenter, a ratio of Acenter to Acover satisfies 0.33≦Acenter/Acover≦0.95.
摘要翻译： 提供了一种多层陶瓷电子部件，其包括：包含电介质层的陶瓷体，以及形成在陶瓷体内并且彼此相对设置的第一和第二内部电极，所述第一和第二内部电极具有介于其间的各个电介质层，其中，在陶瓷的横截面中 在第一和第二内部电极中的覆盖部分内部电极中的非电极区域的面积被定义为Acover和中心部分内部电极中的非电极区域的面积之间的长度（LT）方向上的主体 第一和第二内部电极被定义为Acenter，Acenter与Acover的比率满足0.33＆amp; NlE; Acenter / Acover＆amp; NlE; 0.95。
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4.发明授权公开(公告)号：US09099243B2
公开(公告)日：2015-08-04
申请号：US14061744
申请日：2013-10-23
发明人： Su Hwan Cho , Jong Han Kim , Seung Ho Lee , Jae Yeol Choi
摘要： There is provided a multilayer ceramic electronic component includes a ceramic body including a dielectric layer; and an internal electrode formed in the ceramic body, wherein on a cross-section of the ceramic body in a width-thickness direction, a thickness Te of the internal electrode satisfies 0.1 μm≦Te≦1.0 μm, and when the internal electrode is divided into three regions including a central region and both edge regions in a width direction of the ceramic body and a ratio of an actual total length of the internal electrode corresponding to the sum of lengths of electrode portions to an ideal total length of the internal electrode is defined as connectivity S of the internal electrode, connectivity of the internal electrode in the edge regions satisfies 75%≦S≦98%, and a ratio of connectivity of the internal electrode in the edge regions to connectivity of the internal electrode in the central region is 0.9 to 0.98.
摘要翻译： 提供了一种多层陶瓷电子部件，包括：包含电介质层的陶瓷体; 以及形成在所述陶瓷体中的内部电极，其中，在所述陶瓷体的宽度方向的截面上，所述内部电极的厚度Te满足0.1μm＆lt; 1lE; Te＆nlE;1.0μm，并且当所述内部电极被分割时 在陶瓷体的宽度方向上包括中心区域和两个边缘区域的三个区域，并且与电极部分的长度之和相对应的内部电极的实际总长度与内部电极的理想总长度之比为 定义为内部电极的连通性，边缘区域中的内部电极的连通性满足75％＆lt; NlE; S＆nlE; 98％，并且边缘区域中的内部电极与中心内部电极的连通性的连接性 区域为0.9〜0.98。
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公开(公告)号：US10943736B2
公开(公告)日：2021-03-09
申请号：US16374000
申请日：2019-04-03
发明人： Seung Ho Lee , Jae Yeol Choi , Ki Pyo Hong , Beom Seock Oh
摘要： A method of manufacturing a multilayer ceramic electronic component which includes preparing first and second ceramic green sheets; forming an internal electrode pattern on the first ceramic green sheet using a conductive metal paste; forming a ceramic member on first and second end portions of a first surface of the second ceramic green sheet to form a step portion absorption layer; stacking two or more of the first ceramic green sheets on each other in a stacking direction to form a first group; stacking two or more of the first ceramic green sheets on each other in the stacking direction to form a second group; and placing the second ceramic green sheet between the first group and the second group in the stacking direction to form a ceramic body, wherein the first and second end portions oppose each other in a first direction perpendicular to the stacking direction.
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公开(公告)号：US10580576B2
公开(公告)日：2020-03-03
申请号：US15953942
申请日：2018-04-16
发明人： Jin Woo Kim , Chang Hak Choi , Kang Heon Hur , Seok Hyun Yoon , Seung Ho Lee
IPC分类号： H01B1/08 , H01G4/12 , H01G4/30 , C04B35/628 , C04B35/462 , C04B35/468 , C04B35/48 , C04B35/465 , C04B35/47 , C01G23/00 , H01G4/248
摘要： A multilayer ceramic electronic component includes: a body part including dielectric layers and internal electrodes disposed to face each other with respective dielectric layers interposed therebetween; and external electrodes disposed on an outer surface of the body part and electrically connected to the internal electrodes. The dielectric layer includes grains including: a semiconductive or conductive grain core region containing a base material represented by ABO3, where A is at least one of Ba, Sr, and Ca, and B is at least one of Ti, Zr, and Hf, and a doping material including a rare earth element; and an insulating grain shell region enclosing the grain core region.
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公开(公告)号：US09601684B2
公开(公告)日：2017-03-21
申请号：US14284168
申请日：2014-05-21
发明人： Boum-Seock Kim , Kyung-Mi Kim , Seung Ho Lee , Kyung-Lock Kim , Jung-Wook Seo
IPC分类号： H01L41/187 , H01L41/09 , H01L41/083 , B06B1/06
CPC分类号： H01L41/0838 , B06B1/0603 , H01L41/1876
摘要： Disclosed are a piezoelectric element and a piezoelectric vibrator having the same. The piezoelectric element and the piezoelectric vibrator having the same in accordance with an embodiment of the present invention include: a piezoelectric material formed by laminating a plurality of ceramic layers with one another; internal electrodes formed, respectively, on surfaces of the ceramic layers; and a pair of cover layers formed, respectively, above and below the piezoelectric material in order to protect the internal electrodes, and at least one of the cover layers includes: a plurality of crystal grains; and crack inhibiting particles disposed at boundaries between the plurality of crystal grains and configured to inhibit a crack from spreading in the cover layers.
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公开(公告)号：US09281124B2
公开(公告)日：2016-03-08
申请号：US14262162
申请日：2014-04-25
发明人： Min Gon Lee , Jong Han Kim , Seung Ho Lee
CPC分类号： H01G4/12 , H01G4/012 , H01G4/30 , H05K3/3442 , H05K2201/10015 , H05K2201/2045 , Y02P70/613 , Y10T29/435
摘要： A multilayer ceramic capacitor may include a ceramic body having a plurality of dielectric layers stacked therein; an active part including a plurality of first and second internal electrodes alternately exposed through both end surfaces of the ceramic body; upper and lower cover layers; and first and second external electrodes covering both end surfaces of the ceramic body. When a thickness of the upper or lower cover layer is defined as C, a margin between the active part and a side surface of the ceramic body in a width direction is defined as M, a cross-sectional area of the ceramic body in a width-thickness direction is defined as Ac, and a cross-sectional area of the active part in the width-thickness direction, in which the internal electrodes are overlapped in a thickness direction, is defined as Aa, 1.826≦C/M≦4.686, and 0.2142≦Aa/Ac≦0.4911.
摘要翻译： 多层陶瓷电容器可以包括其中堆叠有多个电介质层的陶瓷体; 活性部分，包括通过陶瓷体的两个端面交替暴露的多个第一和第二内部电极; 上下盖层; 以及覆盖陶瓷体两端面的第一和第二外部电极。 当上盖层或下覆盖层的厚度定义为C时，陶瓷体的宽度方向上的活性部分和侧表面之间的边界被定义为M，陶瓷体的宽度的横截面积 厚度方向被定义为Ac，并且内部电极在厚度方向上重叠的宽度 - 厚度方向上的有源部分的横截面面积被定义为Aa，1.826＆nlE; C / M＆nlE; 4.686 ，和0.2142＆amp; NlE; Aa / Ac＆nlE; 0.4911。
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公开(公告)号：US10079095B2
公开(公告)日：2018-09-18
申请号：US15202145
申请日：2016-07-05
发明人： Kyoung Jin Cha , Seung Ho Lee , Seung Heui Lee , Min Gon Lee
摘要： A capacitor includes a body including a plurality of dielectric layers and internal electrodes which are alternately stacked, and a compensation region formed in the interior of the body, the compensation region including portions of the plurality of dielectric layers and including a central portion and an end portion extended from the central portion. A thickness of the central portion of the compensation region is between 4 and 13 times as great as that of a dielectric layer among the plurality of dielectric layers on which the internal electrodes are formed.
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10.发明授权公开(公告)号：US09812259B2
公开(公告)日：2017-11-07
申请号：US14516435
申请日：2014-10-16
发明人： Seung Ho Lee , Jong Han Kim , Min Gon Lee
CPC分类号： H01G4/30 , H01G2/06 , H01G4/1227 , H01G4/248 , H05K3/3442 , H05K2201/10015
摘要： A multilayer ceramic capacitor may include: an active part including dielectric layers and internal electrodes which are alternately stacked therein; and a cover part disposed on at least one of an upper surface and a lower surface of the active part. The cover part may include an active part protective cover and an exterior cover, and the active part protective cover may be disposed adjacent to the active part.
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