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1.
公开(公告)号:US20180240594A1
公开(公告)日:2018-08-23
申请号:US15900084
申请日:2018-02-20
申请人: TDK CORPORATION
发明人: Ryota NOMURA , Hiroki AKIBA , Sanshiro AMAN , Tetsuhiro TAKAHASHI
CPC分类号: H01G4/1227 , C04B35/465 , C04B35/4686 , C04B35/47 , C04B35/49 , C04B35/495 , C04B35/6261 , C04B35/6262 , C04B35/638 , C04B35/64 , C04B2235/3203 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3217 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3232 , C04B2235/3239 , C04B2235/3244 , C04B2235/3251 , C04B2235/3256 , C04B2235/3258 , C04B2235/3262 , C04B2235/3287 , C04B2235/3409 , C04B2235/3418 , C04B2235/6562 , C04B2235/6565 , C04B2235/6567 , C04B2235/6582 , H01G4/008 , H01G4/012 , H01G4/1236 , H01G4/1254 , H01G4/1263 , H01G4/30
摘要: A dielectric composition comprising a main component expressed by a chemical formula of (A6-xBxCx+2D8-xO30, 0≤x≤5), wherein said “A” component is at least one element selected form the group consisting of Ba, Ca, and Sr, said “B” component is at least one element selected from the group consisting of Y, La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu, said “C” component is at least one element selected from the group consisting of Ti, and Zr, said “D” component is at least one element selected from the group consisting of Nb, and Ta, and said dielectric composition comprises 2.50 mol or more and 20.00 mol or less of an oxide of Ge as a first sub component with respect to 100 mol of said main component.
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公开(公告)号:US20150364259A1
公开(公告)日:2015-12-17
申请号:US14732849
申请日:2015-06-08
发明人: Taisuke Kanzaki , Akio Masunari
CPC分类号: H01G4/30 , B32B18/00 , C04B35/4682 , C04B35/638 , C04B2235/3206 , C04B2235/3224 , C04B2235/3239 , C04B2235/3267 , C04B2235/3418 , C04B2235/6021 , C04B2235/6562 , C04B2237/06 , C04B2237/12 , C04B2237/346 , C04B2237/704 , H01G4/0085 , H01G4/1227 , H01G4/1263
摘要: A multilayer ceramic capacitor that includes dielectric layers made mainly of a perovskite compound containing Ba and Ti and optionally Zr and Hf, and inner electrodes having an average thickness of approximately 0.5 μm or less. The Mg content of the dielectric layers is approximately in the range of 0≦Mg≦0.4 (parts by mole) based on a total of 100 parts by mole of Ti, Zr, and Hf. The proportion of Mg-containing defects in the inner electrodes is approximately 20% or more.
摘要翻译: 一种多层陶瓷电容器,其包括主要由包含Ba和Ti以及任选的Zr和Hf的钙钛矿化合物和平均厚度为约0.5μm或更小的内部电极制成的电介质层。 基于总共100份(摩尔)Ti,Zr和Hf,电介质层的Mg含量大致在0< nlE; Mg≦̸ 0.4(摩尔份)的范围内。 内部电极中含Mg缺陷的比例约为20%以上。
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公开(公告)号:US20150206660A1
公开(公告)日:2015-07-23
申请号:US14536621
申请日:2014-11-08
发明人: Liang Chai
CPC分类号: H01G4/1227 , H01G4/005 , H01G4/012 , H01G4/12 , H01G4/1245 , H01G4/1263 , H01G4/248 , H01G4/30 , H01G4/33
摘要: A capacitor includes a pair of electrodes and a metalized dielectric layer disposed between the pair of electrodes, in which the metalized dielectric layer has a plurality of metal aggregates distributed within a dielectric material. The distribution is such that a volume fraction of metal in the metalized dielectric layer is at least about 30%. Meanwhile, the plurality of metal aggregates are separated from one another by the dielectric material. A method for forming a metal-dielectric composite may include coating a plurality of dielectric particles with a metal to form a plurality of metal-coated dielectric particles and sintering the plurality of metal-coated dielectric particles at a temperature of at least about 750° C. to about 950° C. to transform the metal coatings into discrete, separated metal aggregates. Contrary to conventional techniques of separating electrodes by a dielectric tape, this inventive system and method demonstrates that a metalized dielectric layer may be formed in-situ during sintering.
摘要翻译: 电容器包括一对电极和设置在该对电极之间的金属化介电层,其中金属化介电层具有分布在电介质材料内的多个金属聚集体。 该分布使得金属化介电层中的金属的体积分数至少为约30%。 同时,多个金属聚集体通过介电材料彼此分离。 形成金属 - 电介质复合材料的方法可以包括用金属涂覆多个电介质颗粒以形成多个金属涂覆的电介质颗粒,并在至少约750℃的温度下烧结多个金属涂覆的电介质颗粒 到约950℃,以将金属涂层转变成离散的分离的金属聚集体。 与通过电介质带分离电极的常规技术相反,本发明的系统和方法证明了可以在烧结期间原位形成金属化电介质层。
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公开(公告)号:US08885322B2
公开(公告)日:2014-11-11
申请号:US13270645
申请日:2011-10-11
申请人: Liang Chai
发明人: Liang Chai
CPC分类号: H01G4/1227 , H01G4/005 , H01G4/012 , H01G4/12 , H01G4/1245 , H01G4/1263 , H01G4/248 , H01G4/30 , H01G4/33
摘要: A capacitor includes a pair of electrodes and a metalized dielectric layer disposed between the pair of electrodes, in which the metalized dielectric layer has a plurality of metal aggregates distributed within a dielectric material. The distribution is such that a volume fraction of metal in the metalized dielectric layer is at least about 30%. Meanwhile, the plurality of metal aggregates are separated from one another by the dielectric material. A method for forming a metal-dielectric composite may include coating a plurality of dielectric particles with a metal to form a plurality of metal-coated dielectric particles and sintering the plurality of metal-coated dielectric particles at a temperature of at least about 750° C. to about 950° C. to transform the metal coatings into discrete, separated metal aggregates. Contrary to conventional techniques of separating electrodes by a dielectric tape, this inventive system and method demonstrates that a metalized dielectric layer may be formed in-situ during sintering.
摘要翻译: 电容器包括一对电极和设置在该对电极之间的金属化介电层,其中金属化介电层具有分布在电介质材料内的多个金属聚集体。 该分布使得金属化介电层中的金属的体积分数至少为约30%。 同时,多个金属聚集体通过介电材料彼此分离。 形成金属 - 电介质复合材料的方法可以包括用金属涂覆多个电介质颗粒以形成多个金属涂覆的电介质颗粒,并在至少约750℃的温度下烧结多个金属涂覆的电介质颗粒 到约950℃,以将金属涂层转变成离散的分离的金属聚集体。 与通过电介质带分离电极的常规技术相反,本发明的系统和方法证明了可以在烧结期间原位形成金属化电介质层。
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公开(公告)号:US20140319660A1
公开(公告)日:2014-10-30
申请号:US14357167
申请日:2012-10-25
IPC分类号: H01L21/02
CPC分类号: H01G4/1254 , H01G4/1263 , H01G4/306 , H01L21/02205 , H01L21/02282 , H01L21/02288 , H01L21/76817 , H01L27/016 , H01L28/40 , H01L29/84
摘要: A solid-state electronic device according to the present invention includes: an oxide layer (possibly containing inevitable impurities) that is formed by heating, in an atmosphere containing oxygen, a precursor layer obtained from a precursor solution as a start material including both a precursor containing bismuth (Bi) and a precursor containing niobium (Nb) as solutes, the oxide layer consisting of the bismuth (Bi) and the niobium (Nb); wherein the oxide layer is formed by heating at a heating temperature from 520° C. to 650° C.
摘要翻译: 根据本发明的固态电子器件包括:氧化物层(可能含有不可避免的杂质),其通过在包含氧气的气氛中加热由作为起始材料的前体溶液获得的前体层而形成,该起始材料包括前体 含有铋(Bi)和含有铌(Nb)作为溶质的前体,由铋(Bi)和铌(Nb)构成的氧化物层。 其中通过在520℃至650℃的加热温度下加热形成氧化物层。
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公开(公告)号:US20080224264A1
公开(公告)日:2008-09-18
申请号:US11967200
申请日:2007-12-30
申请人: Jong-Bum PARK
发明人: Jong-Bum PARK
IPC分类号: H01L21/283 , H01L29/92
CPC分类号: H01G4/33 , H01G4/1263 , H01G4/20 , H01L28/91
摘要: A capacitor includes a lower electrode, a first dielectric layer formed over the lower electrode, a second dielectric layer formed over the first dielectric layer, wherein the second dielectric layer includes an amorphous high-k dielectric material, a third dielectric layer formed over the second dielectric layer, and an upper electrode formed over the third dielectric layer.
摘要翻译: 电容器包括下电极,形成在下电极上的第一电介质层,形成在第一电介质层上的第二电介质层,其中第二电介质层包括非晶高k电介质材料,第二介电层形成在第二电介质层上 电介质层和形成在第三介电层上的上电极。
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公开(公告)号:US4536821A
公开(公告)日:1985-08-20
申请号:US584343
申请日:1984-02-28
CPC分类号: H01G4/1263 , C04B35/497 , H01G4/12 , H01G4/1254 , Y10T29/435
摘要: A dielectric composition, particularly suitable for the manufacture of ceramic capacitors, comprising lead magnesium niobate and lead zinc niobate. These may be additives, such as one or more oxide additives chosen from the group comprising silica, manganese dioxide, zinc oxide, nickel oxide, alumina, ceric oxide, lanthanum oxide and tungsten oxide, gallium oxide, titanium dioxide and lead oxide, or additives such as bismuth stannate. The compositions can be fired at temperatures between 980.degree. and 1075.degree. C. so that in the case of multilayer ceramic capacitors high silver content internal electrodes can be used. Higher dielectric constants, for example 9000 to 16,300, of the fired ceramics than conventional ceramics are obtained, thus permitting capacitor device size reduction.
摘要翻译: 特别适用于制造陶瓷电容器的电介质组合物,包括铌酸铅镁和铌酸铅锌。 这些可以是添加剂,例如一种或多种选自二氧化硅,二氧化锰,氧化锌,氧化镍,氧化铝,氧化铈,氧化镧和氧化钨,氧化镓,二氧化钛和氧化铅的组分的氧化物添加剂,或添加剂 如锡酸铋。 组合物可以在980℃和1075℃之间的温度下焙烧,因此在多层陶瓷电容器的情况下可以使用高含量的内部电极。 获得比常规陶瓷更高的介电常数,例如9000至16300的焙烧陶瓷,从而允许电容器尺寸减小。
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公开(公告)号:US4265668A
公开(公告)日:1981-05-05
申请号:US89245
申请日:1979-10-29
IPC分类号: C04B35/499 , H01B3/12 , H01G4/12 , C04B35/46 , C04B35/00
CPC分类号: C04B35/499 , H01B3/12 , H01G4/1263
摘要: A basic ceramic composition of high dielectric constant type ceramic composition comprises from 68.67 to 69.19% of PbO, from 3.67 to 4.09% of MgO, from 24.17 to 26.99% of Nb.sub.2 O.sub.5 and from 0.25 to 2.97% of TiO.sub.2, all percentages being by weight. Modified composition may comprise additive of Pb(Mn.sub.2/3 W.sub.1/3)O.sub.3, Pb(Mn.sub.1/3 Nb.sub.2/3)O.sub.3, Pb(Mn.sub.1/3 Ta.sub.2/3)O.sub.3, Pb(Mn.sub.1/2 W.sub.1/2)O.sub.3, MnO, and MgO. Modified composition may comprise Ba, Sr and Ca, which replace Pb of the basic ceramic composition. In a modified composition, the content of B site elements may be larger than that of A site element of an ABO.sub.3 crystal of the high dielectric constant type ceramic composition. A high dielectric constant, low dielectric loss, low temperature dependence of capacitance, high insulation resistance and a low sintering temperature are provided by the ceramic compositions of the present invention.
摘要翻译: 高介电常数陶瓷组合物的基本陶瓷组合物包含68.67至69.19%的PbO,3.67至4.09%的MgO,24.17至26.99%的Nb2O5和0.25至2.97%的TiO2,所有百分比均为重量百分比。 改性组合物可以包括Pb(Mn2 / 3W1 / 3)O3,Pb(Mn1 / 3Nb2 / 3)O3,Pb(Mn1 / 3Ta2 / 3)O3,Pb(Mn1 / 2W1 / 2)O3,MnO和MgO 。 改性组合物可以包含替代碱性陶瓷组合物的Pb的Ba,Sr和Ca。 在改性组合物中,B位元素的含量可以大于高介电常数型陶瓷组合物的ABO 3晶体的A位元素的含量。 本发明的陶瓷组合物提供高介电常数,低介电损耗,低电容温度依赖性,高绝缘电阻和低烧结温度。
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9.
公开(公告)号:US3709704A
公开(公告)日:1973-01-09
申请号:US3709704D
申请日:1970-06-12
发明人: MATSUO Y , SASAKI H , HAYAKAWA S
IPC分类号: C04B35/468 , H01B3/02 , H01G4/12 , C04B33/00
CPC分类号: C04B35/4682 , H01B3/025 , H01G4/1263
摘要: A CERAMIC MATERIAL IN A PEROVSKITE STRUCTURE HAVING A HIGH DIELECTRIC PERMITTIVITY A LOW POWER FACTOR AND A LOW TEMPERATURE COEFFICIENT TO PERMITTIVITY THE COMPOSITION OF WHICH IS IN A CHEMICAL FORMULA OF
BA(NA0.25XNB0.75TI1-X)O3
WHEREIN X RAGES FROM 0.01 TO 0.30 IN ACCORDANCE WITH THE INVENTIONS. THE CERAMIC DIELECTRIC COMPOSITION OF
BA(NA0.25XNHB0.75XTI1-X)O3
CAN BE MODIFIED BY SUBSTITUTIONO SR FOR BA OR LI FOR NA IN ACCORDANCE WITH THE INVENTIONS.-
公开(公告)号:US20190189895A1
公开(公告)日:2019-06-20
申请号:US16284744
申请日:2019-02-25
申请人: EPCOS AG
发明人: Dieter Somitsch , Franz Rinner
IPC分类号: H01L41/083 , H01L41/293 , H01L41/047 , H01G4/12 , H01G4/005 , H01G4/252 , H01G4/30
CPC分类号: H01L41/083 , C25D11/005 , C25D11/04 , C25D11/34 , C25D17/008 , H01G4/005 , H01G4/1218 , H01G4/1236 , H01G4/1263 , H01G4/252 , H01G4/30 , H01G4/302 , H01L41/0471 , H01L41/0472 , H01L41/0477 , H01L41/293 , Y10T29/42 , Y10T29/43 , Y10T29/435
摘要: A multilayer component is disclosed. In an embodiment, a multilayer component includes a fully active stack comprising a plurality of dielectric layers, internal electrodes and two external electrodes arranged on opposite sides of the stack, wherein at least one portion of the internal electrode layers are coated.
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