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公开(公告)号：US20220013295A1
公开(公告)日：2022-01-13
申请号：US17366141
申请日：2021-07-02
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yasuhiro NISHISAKA , Mitsuru IKEDA
Abstract: An electronic component includes a multilayer body including a multilayer main body including internal nickel electrode layers exposed at end surfaces thereof, external nickel layers on the end surfaces of the multilayer body, and external copper electrode layers covering one of the end surfaces. When dimensions of the external nickel layer and the multilayer body are TN and T0, a relationship of TN
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公开(公告)号：US20220013293A1
公开(公告)日：2022-01-13
申请号：US17366136
申请日：2021-07-02
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yasuhiro NISHISAKA , Mitsuru IKEDA
Abstract: An electronic component includes a multilayer body including a multilayer main body including end surfaces at which internal nickel electrode layers are exposed, side gap portions, external nickel layers on the end surfaces of the multilayer body, and external copper electrode layers covering the end surfaces on which the external nickel layers are provided. A nickel-based oxide and/or a silicon-based oxide are provided between the external nickel layer and the external copper electrode layer. A nickel layer and a tin layer are provided outside the external copper electrode layer. In a cross section passing through a middle of the electronic component in the width direction and extending in the length direction and the lamination direction, a relationship of about 0.2≤Tea/Tem≤about 1.1 is satisfied.
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公开(公告)号：US20250014830A1
公开(公告)日：2025-01-09
申请号：US18754231
申请日：2024-06-26
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hironori TSUTSUMI , Mitsuru IKEDA , Akihiro YOSHIDA , Takayuki SHIMAKAWA
Abstract: A multilayer ceramic capacitor includes an element body portion including dielectric layers and internal electrode layers including Ni, and external electrodes. In each internal electrode layer, a width of an opposing portion is larger than a width of a lead-out portion. The element body portion includes side margin portions extending from both end portions of the opposing portion to first and second side surfaces, through a central portion in a length direction, and parallel or substantially parallel to a thickness direction and a width direction. A dielectric layer between adjacent internal electrode layers in the thickness direction includes grains including pores. Each of the side margin portions includes a dielectric including grains that do not include pores.
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公开(公告)号：US20250014818A1
公开(公告)日：2025-01-09
申请号：US18754232
申请日：2024-06-26
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hironori TSUTSUMI , Mitsuru IKEDA , Akihiro YOSHIDA , Takayuki SHIMAKAWA
Abstract: A multilayer ceramic capacitor includes an element body portion including internal electrode layers, and first and second external electrodes. In the internal electrode layers, a width of an opposing portion is larger than a width of a lead-out portion, each of the first and second external electrodes includes a Cu layer on the element body portion including first and second layer portions. The first layer portion has a higher Cu content than the second layer portion, the second layer portion has a higher glass content than the first layer portion. The Cu in the first layer portion is continuous to connect lead-out portions adjacent to each other. In a cross section of the second layer portion extending through a central portion in the width direction and parallel to the thickness and length directions, the glass occupies about 25% or more of an area of the second layer portion.
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公开(公告)号：US20220384104A1
公开(公告)日：2022-12-01
申请号：US17752910
申请日：2022-05-25
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Mitsuru IKEDA , Yasuhiro NISHISAKA
Abstract: An electronic component includes an electronic element and an interposer board. The electronic element includes a multilayer body and external electrodes at multilayer body end surfaces of the multilayer body and connected to internal electrode layers. The interposer board includes board end surfaces, board side surfaces orthogonal to the board end surfaces, and board main surfaces orthogonal to the board end surfaces and the board side surfaces. One of the board main surfaces is located in a vicinity of the electronic element and joined with one of the multilayer body main surfaces in a vicinity of the interposer board. The interposer board is an alumina board. The board end surfaces include a metal layer including a Pd-containing layer, and an electrolessly-plated layer on an outer periphery of the Pd-containing layer.
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Patent Agency Ranking
公开(公告)号：US20210335551A1
公开(公告)日：2021-10-28
申请号：US17232360
申请日：2021-04-16
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Mitsuru IKEDA
Abstract: A multilayer ceramic capacitor includes a multilayer body, two external electrodes, and two wall portions. The multilayer body includes a multilayer main body including an inner layer portion in which dielectric layers and internal electrode layers are stacked, and two outer layer portions on opposite sides of the inner layer portion in a stacking direction, two side gap portions on opposite sides of the multilayer main body in a width direction, two main surfaces on opposite sides in the stacking direction, two side surfaces on opposite sides in the width direction, and two end surfaces on opposite sides in a length direction. The two external electrodes each are provided at one of the two end surfaces of the multilayer body, and each extend from the one of the two end surfaces to a portion of the main surface. The wall portions cover portions of the external electrodes at the two end surfaces, and each include a protruding portion that protrudes from the main surface.
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17.发明申请公开(公告)号：US20170309401A1
公开(公告)日：2017-10-26
申请号：US15646332
申请日：2017-07-11
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hirobumi ADACHI , Mitsuru IKEDA , Hitoaki KIMURA
Abstract: A three terminal capacitor includes a capacitor element including first through sixth surfaces, first-side and second-side outer electrodes, a center outer electrode between the first-side and second-side outer electrodes, and conductor layers. The conductor layers include a pair of outermost conductor layers that are respectively nearest to the fifth and sixth surfaces, and thicknesses of the pair of outermost conductor layers are greater than a thickness of a center conductor layer nearest to a center of the capacitor element in a width direction.
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公开(公告)号：US20170110247A1
公开(公告)日：2017-04-20
申请号：US15393349
申请日：2016-12-29
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hirobumi ADACHI , Mitsuru IKEDA , Hitoaki KIMURA
CPC classification number: H01G4/232 , H01G4/0085 , H01G4/1227
Abstract: A three-terminal capacitor includes a capacitor element including first through sixth surfaces, first-side and second-side outer electrodes, a center outer electrode between the first-side and second-side outer electrodes, and conductor layers within the capacitor element. A height H2 is greater than a height H3, where the height H2 represents a higher one of a height at a center of a portion of the first-side outer electrode on the fifth surface and a height at a center of a portion of the first-side outer electrode on the sixth surface, and the height H3 represents a height at a center of a portion of the first-side outer electrode on the third surface, wherein the height H2 and the height H3 extend in the thickness direction.
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公开(公告)号：US20160163459A1
公开(公告)日：2016-06-09
申请号：US14924827
申请日：2015-10-28
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Mitsuru IKEDA , Hirobumi ADACHI , Hitoaki KIMURA
CPC classification number: H01G4/30 , H01G4/012 , H01G4/232 , H01G4/2325
Abstract: A capacitor element includes first through sixth surfaces, a first-side outer electrode at a first end portion of the first surface and on portions of the third, fifth, and sixth surfaces, a second-side outer electrode at a second end portion of the first surface and on portions of the fourth, fifth, and sixth surfaces, a center outer electrode at a portion of the first surface between the first-side outer electrode and the second-side outer electrode and on portions of the fifth and sixth surfaces, and two outermost conductor layers of first and second conductor layers are disposed at both outermost ends in the width direction, a first of the two outermost conductor layers next to one of the first conductor layers with an inner dielectric layer therebetween is connected to the center outer electrode, and a second of the pair of outermost conductor layers next to one of the second conductor layers with an inner dielectric layer therebetween is connected to the first-side outer electrode and the second-side outer electrode.
Abstract translation: 电容器元件包括第一至第六表面，在第一表面的第一端部处的第一侧外电极和第三，第五和第六表面的部分上的第二侧外电极，在第二端部处的第二侧外电极 第一表面和第四表面，第五表面和第六表面的部分上的第一表面的第一表面的第一表面外侧电极和第二侧外部电极之间的中心外部电极，以及第五表面和第六表面的部分， 并且第一和第二导体层的两个最外面的导体层设置在宽度方向的两个最外端，在其间具有内部电介质层的一个第一导体层中的两个最外面的导体层中的第一个被连接到中心外部 电极，并且在其间具有内部电介质层的一个第二导体层上的一对最外面的导体层中的第二导体层与第一侧外部电极 e和第二侧外电极。
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公开(公告)号：US20250014829A1
公开(公告)日：2025-01-09
申请号：US18754226
申请日：2024-06-26
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hironori TSUTSUMI , Mitsuru IKEDA , Akihiro YOSHIDA , Takayuki SHIMAKAWA
Abstract: A multilayer ceramic capacitor includes an element body portion including dielectric layers and internal electrode layers laminated in a thickness direction, and external electrodes respectively on first and second end surfaces and electrically connected to the internal electrode layers. Each of the internal electrode layers includes an opposing portion opposed to another internal electrode layer, and a lead-out portion connected to the opposing portion and extending to the first or second end surface, a width of the opposing portion is larger than a width of the lead-out portion in the width direction, and a relationship of C1>C2 is satisfied when a continuity of an end portion of the opposing portion in the width direction is defined as C1 and a continuity of an end portion of the lead-out portion in the width direction is defined as C2.
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