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61.发明公开公开(公告)号：US20240071686A1
公开(公告)日：2024-02-29
申请号：US17972760
申请日：2022-10-25
发明人： Young Joo OH , Jung Rag YOON , Chang Ho LEE
IPC分类号： H01G4/12 , C04B35/468
CPC分类号： H01G4/1227 , C04B35/468 , C04B2235/3236 , C04B2235/3239 , C04B2235/3251 , C04B2235/3277 , C04B2235/6567
摘要： A dielectric ceramic composition for multi-layer ceramic capacitor for use in extreme environments is formed by mixing a main compos it ion and a composite oxide for low-temperature sintering, where the main composition includes 96.0 to 99.0 wt. % of BaTiO3 and 1.0 to 4.0 wt. % of Nb2O5 and Co3O4 as an additive. The main composition is formed by per forming a heat treatment for synthesis to form a core-shell structure having the BaTiO3 as a core and the Nb2O5 and Co3O4 covering the sur face of the BaTiO3. The composite oxide for low-temperature sintering is at least one selected from BaV2O6, Ba3V4O13 and Ba4V2O9.
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公开(公告)号：US20240062959A1
公开(公告)日：2024-02-22
申请号：US18495864
申请日：2023-10-27
发明人： Marianne Berolini , Cory Nelson , Seth Fuller , Alma Iris Cordova
CPC分类号： H01G4/008 , H01G4/1227 , H01G4/248 , H01G4/30
摘要： The present invention is directed to a multilayer ceramic capacitor. The multilayer ceramic capacitor has a first end and a second end that is spaced apart from the first end in a longitudinal direction that is perpendicular to a lateral direction wherein the lateral direction and longitudinal direction are each perpendicular to a Z-direction. The multilayer ceramic capacitor comprises a monolithic body comprising a plurality of dielectric layers and a plurality of electrode layers parallel with the lateral direction. At least one electrode layer includes a first electrode comprising a connecting portion and a central portion extending from the connecting portion in the longitudinal direction wherein the central portion includes a Z-directional edge and the connecting portion includes an edge extending in both the longitudinal direction and the Z-direction and wherein the Z-directional edge of the central portion forms a first angle of from greater than 90° to less than 180° with the edge of the connecting portion. A first external termination disposed along the first end and a second external termination disposed along the second end.
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公开(公告)号：US11901133B2
公开(公告)日：2024-02-13
申请号：US18184109
申请日：2023-03-15
发明人： David L. Frank
CPC分类号： H01G4/30 , H01G4/008 , H01G4/1218 , H01G4/232 , H01G4/38
摘要： An energy storage element and method of fabrication thereof are disclosed. An energy storage element includes a set of electrodes where one or more electrodes have extended conductive paths through nano-channel electric interconnections with ceramic particles in one or more dielectric layers. The electrode's electric field is extended into the dielectric material providing increased capacitance. The set of electrodes can include a pair of electrode layers respectively attached directly to opposing sides of one dielectric layer. The set of electrodes, which can also be referred to as multi-layer electrodes, can include a plurality of electrode layers interleaved between, and directly attached to, a plurality of stacked dielectric layers.
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公开(公告)号：US11901130B2
公开(公告)日：2024-02-13
申请号：US18097998
申请日：2023-01-17
发明人： Jin Soo Park , Myung Jun Park , Hyun Hee Gu , Bum Soo Kim , Yeon Song Kang , Duk Hyun Chun , Chung Eun Lee
CPC分类号： H01G4/2325 , H01G4/008 , H01G4/248 , H01G4/308 , H01G4/1227
摘要： A multilayer electronic component, in which the external electrode may be thinned to secure capacitance per unit volume, while securing the external electrode at a corner in a specific thickness or higher with improved reliability for moisture resistance.
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公开(公告)号：US11901128B2
公开(公告)日：2024-02-13
申请号：US17704411
申请日：2022-03-25
发明人： Jin Uk Cha , Chang Min Lee , Hye Sung Yoon , Seon A Jang , Ji Hyuk Lim , Ki Yong Lee
CPC分类号： H01G4/1227 , H01G4/2325 , H01G4/30 , H01G4/012
摘要： A capacitor component includes a body including a dielectric layer and first and second internal electrode layers, and external electrodes disposed on the body and connected to the first and second internal electrode layers, respectively. The body includes an active portion in which the first and second internal electrode layers are alternately disposed with the dielectric layer interposed therebetween, a cover portion disposed on an upper portion and a lower portion of the active portion, and a side margin portion disposed on both sides of the active portion opposing each other. When a content of magnesium (Mg) included in the active portion is A1, a content of magnesium (Mg) included in the cover portion is C1, and a content of magnesium (Mg) included in the margin portion is M1, 0
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公开(公告)号：US11894198B2
公开(公告)日：2024-02-06
申请号：US17835277
申请日：2022-06-08
发明人： Hikaru Okuda , Toshihiro Harada
CPC分类号： H01G4/30 , H01G4/008 , H01G4/012 , H01G4/1227
摘要： A multilayer ceramic capacitor includes a multilayer body including dielectric layers and internal electrode layers stacked together, and external electrodes. The multilayer body includes an inner layer portion and outer layer portions in a stacking direction, and an electrode opposing portion and gap portions in a length direction. The multilayer body further includes conductor portions in the two outer layer portions in the gap portions, and each includes conductor layers stacked in the stacking direction. One of that conductor layers that is closest to a middle in the stacking direction of the multilayer body is closer to the middle in the stacking direction of the multilayer body than another of the internal electrode layers closest in the stacking direction to a main surface of the multilayer body.
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公开(公告)号：US11894191B2
公开(公告)日：2024-02-06
申请号：US17721808
申请日：2022-04-15
发明人： Jae Hoon Kim , Ji Hoon Kim , Gyoung Heon Ko , Yong Hoon Kim
CPC分类号： H01G4/012 , H01G4/1227 , H01G4/232 , H01G4/30
摘要： A multilayer electronic component may include a first internal electrode layer including a first dielectric layer and first to fourth internal electrodes disposed to be spaced apart from each other on the first dielectric layer, a second internal electrode layer including a second dielectric layer and a fifth internal electrode disposed on the second dielectric layer, a body including a capacitance forming portion in which the first internal electrode layer and the second internal electrode layer are alternately disposed, a connection electrode penetrating through the first and second internal electrode layers, spaced apart from the first to fourth internal electrodes, and connected to the fifth internal electrode, first to fourth external electrodes disposed to be connected to the first to fourth internal electrodes, respectively, on the body, and a fifth external electrode disposed to be connected to the connection electrode on the body.
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公开(公告)号：US11887783B2
公开(公告)日：2024-01-30
申请号：US17421408
申请日：2020-01-17
申请人： KYOCERA Corporation
CPC分类号： H01G2/08 , C04B35/4682 , H01G4/1227 , H01G4/232 , H01G4/248 , H01G4/30 , C04B2235/3206 , C04B2235/3224 , C04B2235/3236 , C04B2235/3262 , C04B2235/36 , C04B2235/405 , C04B2235/442 , H01G4/08
摘要： A capacitor according to an embodiment of the present disclosure is provided with a capacitor body in which a plurality of dielectric layers and a plurality of internal electrode layers are alternately laminated. The dielectric layers each includes crystal particles, grain boundaries and metal particles. An average particle size of the metal particles is smaller than an average particle size of the crystal particles and larger than an average width of interfacial grain boundaries among the grain boundaries. Observation of the longitudinal cross section of the dielectric layer shows that the metal particles are distributed along the width direction and the thickness direction of the dielectric layer.
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公开(公告)号：US20240021368A1
公开(公告)日：2024-01-18
申请号：US18373349
申请日：2023-09-27
发明人： Toru WAKAMATSU , Daisuke HAMADA
CPC分类号： H01G4/008 , H01G4/30 , H01G4/012 , H01G4/1227 , H01G4/232
摘要： In a multilayer ceramic capacitor including first and second inner electrodes alternately arranged with respect to a stacking direction of a multilayer body, a polarity based on a direction of voltage applied between a first outer electrode and a second outer electrode is determined such that the first inner electrodes function as positive electrodes and the second inner electrodes function as negative electrodes. The first inner electrodes have a first metal composition including Ni or Cu as a main component, and the second inner electrodes have a second metal composition including at least one metal element selected from Au, Pt, Ir, Pd, Os, Ag, Rh, and Ru, which have standard electrode potentials higher than that of Cu, as a main component.
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公开(公告)号：US20240021367A1
公开(公告)日：2024-01-18
申请号：US18373342
申请日：2023-09-27
发明人： Toru WAKAMATSU , Daisuke HAMADA
CPC分类号： H01G4/008 , H01G4/30 , H01G4/1218 , H01G4/1236
摘要： In a multilayer ceramic capacitor including first and second inner electrodes alternately arranged with respect to a stacking direction of a multilayer body, a polarity based on a direction of voltage applied between a first outer electrode and a second outer electrode is determined such that the first inner electrodes function as positive electrodes and the second inner electrodes function as negative electrodes. The first inner electrodes have a first metal composition including Ni as a main component, and the second inner electrodes have a second metal composition including Ni as a main component, and at least one metal element selected from Au, Pt, Ir, Pd, Os, Ag, Rh, Ru, and Cu, which have standard electrode potentials higher than that of Ni, as an additive component.
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