公开(公告)号：US20030158031A1

公开(公告)日：2003-08-21

申请号：US10032769

申请日：2001-12-27

发明人： Naseemabeevi Jawahar Isuhak ,  Thomas Sebastian Mailadil

IPC分类号： C04B035/495

CPC分类号： C04B35/495 ,  C01G33/006 ,  C01G35/006 ,  C01P2002/50 ,  C01P2004/54 ,  C01P2004/82 ,  C01P2006/40

摘要： The present invention discloses a novel microwave dielectric composition of the general formula 5AO-2B2O5 wherein AnullBa, Sr, Ca, Mg or Zn and BnullNb or Ta, and a process for the preparation thereof In one embodiment of the invention, the dielectric constant is in the range 11null1 to 42null1, quality factornullfrequency in the range 2000 and 88,000 and temperature coefficient of resonant frequency in the range null140null7 and null73null5 ppm/null C.

摘要翻译： 本发明公开了一种通式5AO-2B2O5的新型微波介电组合物，其中A = Ba，Sr，Ca，Mg或Zn和B = Nb或Ta，以及其制备方法在本发明的一个实施方案中， 介电常数在11±1至42±1范围内，品质因子频率范围为2000和88,000，谐振频率的温度系数在+ 140±7和-73±5 ppm /°C范围内。

公开(公告)号：US20030054941A1

公开(公告)日：2003-03-20

申请号：US10041325

申请日：2002-01-07

申请人： BROPTICS COMMUNICATION CORPORATION

发明人： Hui-Ling Wen ,  John Lin ,  Yu-Lung Lo

IPC分类号： C04B035/495

CPC分类号： G02B6/0218 ,  C04B35/495 ,  C04B35/63 ,  C04B35/6303 ,  C04B35/634 ,  C04B2235/3201 ,  C04B2235/3217 ,  C04B2235/3239 ,  C04B2235/3244 ,  C04B2235/3248 ,  C04B2235/3258 ,  C04B2235/326 ,  C04B2235/3418 ,  C04B2235/80 ,  C04B2235/94 ,  C04B2235/9607

摘要： The present invention discloses a process for the preparation of zirconium tungstate (ZrW2O8) ceramic body, comprising a reactive sintering step to react and sinter powders of the raw materials comprising a Zr-containing compound and a W-containing compound to form a zirconium tungstate ceramic body. The addition of zirconium tungstate powders as the seeds in the process can effectively reduce the steps, shorten the preparation time, lower the sintering temperature and duration, save the cost, and provide the zirconium tungstate ceramic body with uniform microstructure. Also, a process for the preparation of modified zirconium tungstate ceramic body is disclosed, by forming a second phase in the zirconium tungstate ceramic body to tune the thermal expansion coefficient of the zirconium tungstate ceramic body. The present invention also relates to the use of the modified zirconium tungstate ceramic body to provide a temperature compensated fiber bragg grating (FBG) device.

摘要翻译： 本发明公开了一种制备钨酸锆（ZrW2O8）陶瓷体的方法，该方法包括使包含含Zr化合物和含W化合物的原料的粉末反应并烧结的反应性烧结步骤，以形成钨酸锆陶瓷 身体。 在该过程中加入钨酸锆粉作为种子可有效降低步骤，缩短制备时间，降低烧结温度和持续时间，节省成本，并为钨酸锆陶瓷体提供均匀的微观结构。 另外，通过在钨酸锆陶瓷体中形成第二相以调节钨酸锆陶瓷体的热膨胀系数，公开了制备改性锆酸钨陶瓷体的方法。 本发明还涉及使用改性的钨酸锆陶瓷体来提供温度补偿光纤布拉格光栅（FBG）装置。

公开(公告)号：US20030050179A1

公开(公告)日：2003-03-13

申请号：US09937501

申请日：2002-01-07

发明人： Kazuhisa Itakura ,  Takashi Oba ,  Akifumi Tosa ,  Kazushige Obayashi

IPC分类号： C04B035/453 ,  C04B035/495

CPC分类号： C04B35/453 ,  C04B35/495

摘要： The present invention is directed to a dielectric ceramic composition exhibiting a high unloaded quality factor and a small variation thereof. The dielectric ceramic composition of the invention containing Ba, Zn, and Ta, contains 100 parts by weight of a predominant component represented by xBaO-yZnO-(null)zTa2O5 (x, y, and z represent compositional proportions by mol and satisfy xnullynullznull1), wherein x, y, and z fall within a quadrilateral region formed by connecting points A (xnull0.503, ynull0.152, znull0.345), B (xnull0.497, ynull0.158, znull0.345), C (xnull0.503, ynull0.162, znull0.335), and D (xnull0.497, ynull0.168, znull0.335) (sides AB, BD, DC, and CA being included) as shown in FIG. 1; 0.2-1.6 parts by weight K as reduced to K2O; and 0.7-8 parts by weight Ta as reduced to Ta2O5, wherein the ratio by weight of K to Ta falls within the range of 0.185-0.4. The dielectric resonator of the present invention is formed of the dielectric ceramic composition.

摘要翻译： 本发明涉及一种表现出高卸载品质因数及其变化小的介电陶瓷组合物。 含有Ba，Zn和Ta的本发明的电介质陶瓷组合物含有100重量份的由xBaO-yZnO-（½）zTa2O5表示的主要成分（x，y，z表示组成比例摩尔，满足x + y + z = 1），其中x，y和z落在通过连接点A（x = 0.503，y = 0.152，z = 0.345）形成的四边形区域内，B（x = 0.497，y = 0.158，z = 0.345），C（x = 0.503，y = 0.162，z = 0.335）和D（x = 0.497，y = 0.168，z = 0.335）（包括边AB，BD，DC和CA） 。 1; 0.2-1.6重量份K，还原成K2O; 和还原为Ta 2 O 5的0.7-8重量份的Ta，其中K与Ta的重量比在0.185-0.4的范围内。 本发明的介质谐振器由电介质陶瓷组合物形成。

公开(公告)号：US20020132721A1

公开(公告)日：2002-09-19

申请号：US10143318

申请日：2002-05-08

申请人： Honeywell International Inc.

发明人： Jianxing Li ,  Tim Scott ,  Tamara White

IPC分类号： C04B035/468 ,  C04B035/472 ,  C04B035/495

CPC分类号： C23C14/3414 ,  C04B35/462 ,  C23C14/08 ,  Y10S977/775 ,  Y10S977/777 ,  Y10S977/838 ,  Y10S977/891

摘要： The invention comprises ferroelectric vapor deposition targets and to methods of making ferroelectric vapor deposition targets. In one implementation, a ferroelectric physical vapor deposition target has a predominate grain size of less than or equal to 1.0 micron, and has a density of at least 95% of maximum theoretical density. In one implementation, a method of making a ferroelectric physical vapor deposition target includes positioning a prereacted ferroelectric powder within a hot press cavity. The prereacted ferroelectric powder predominately includes individual prereacted ferroelectric particles having a maximum straight linear dimension of less than or equal to about 100 nanometers. The prereacted ferroelectric powder is hot pressed within the cavity into a physical vapor deposition target of desired shape having a density of at least about 95% of maximum theoretical density and a predominate maximum grain size which is less than or equal to 1.0 micron. In one implementation, the prereacted ferroelectric powder is hot pressed within the cavity into a physical vapor deposition target of desired shape at a maximum pressing temperature which is at least 200null C. lower than would be required to produce a target of a first density of at least 85% of maximum theoretical density in hot pressing the same powder but having a predominate particle size maximum straight linear dimension of at least 1.0 micron at the same pressure and for the same amount of time, and a target density greater than the first density at the lower pressing temperature is achieved.

摘要翻译： 本发明包括铁电气相沉积靶和制备铁电沉积靶的方法。 在一个实施方案中，铁电物理气相沉积靶具有小于或等于1.0微米的主要晶粒尺寸，并且具有至少95％的最大理论密度的密度。 在一个实施方案中，制造铁电物理气相沉积靶的方法包括将预反应的铁电粉末定位在热压腔内。 预反应的铁电粉末主要包括具有小于或等于约100纳米的最大直线尺寸的单个预反应的铁电颗粒。 将预反应的铁电粉末在空腔内热压成所需形状的物理气相沉积靶，其具有至少约95％的最大理论密度和最大粒度小于或等于1.0微米的最大粒度。 在一个实施方案中，将预反应的铁电粉末在空腔内热压成所需形状的物理气相沉积靶，其最大压制温度比产生第一密度的靶的要求低至少200℃ 在相同的压力和相同的时间量下热压相同的粉末但具有至少1.0微米的主要粒度最大直线尺寸的至少85％的最大理论密度，并且目标密度大于第一密度 在较低的压制温度下实现。

公开(公告)号：US20030170169A1

公开(公告)日：2003-09-11

申请号：US10382570

申请日：2003-03-07

申请人： SHOWA DENKO K.K.

发明人： Kazuhiro Omori ,  Kazumi Naito ,  Toshiya Kawasaki ,  Kouichi Wada

IPC分类号： C01G033/00 ,  C04B035/495

CPC分类号： C01G33/00 ,  C01P2002/52 ,  C01P2004/60 ,  C01P2004/61 ,  C01P2006/11 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/17 ,  C01P2006/40 ,  C01P2006/80 ,  C04B35/495 ,  C04B35/6262 ,  C04B35/62655 ,  C04B35/6268 ,  C04B35/63424 ,  C04B35/638 ,  C04B38/0615 ,  C04B2111/00853 ,  C04B2235/5409 ,  C04B2235/5427 ,  C04B2235/5436 ,  C04B2235/6581 ,  C04B2235/72 ,  C04B2235/79 ,  H01G9/028 ,  H01G9/0525 ,  C04B38/0054 ,  C04B38/007

摘要： (1) A niobium monoxide powder for a capacitor represented by formula: NbOx (xnull0.8 to 1.2) and optionally containing other elements in an amount of 50 to 200,000 ppm, having a tapping density of 0.5 to 2.5 g/ml, an average particle size of 10 to 1000 nullm, angle of repose from 10null to 60null, the BET specific surface area from 0.5 to 40 m2/g and a plurality of pore diameter peak tops in the pore distribution, and a producing method thereof; (2) a niobium monoxide sintered body, which is obtained by sintering the above niobium monoxide powder and, having a plurality of pore diameter peak tops in a range of 0.01 nullm to 500 nullm, preferably, the peak tops of two peaks among the plurality of pore diameter peak tops having a highest relative intensity are present in the range of 0.2 to 0.7 nullm and in the range of 0.7 to 3 nullm, respectively, and a producing method thereof; (3) a capacitor using the above sintered body and a producing method thereof; and (4) an electronic circuit and electronic device using the above capacitor.

摘要翻译： （1）一种用于由式NbO x（x = 0.8〜1.2）表示的电容器的铌氧化物粉末，任选地含有50〜200,000ppm的其他元素，敲击密度为0.5〜2.5g / ml，平均 其粒径为10〜1000μm，休止角为10°〜60°，BET比表面积为0.5〜40m2 / g，孔分布中的多个细孔直径峰顶及其制造方法。 （2）一种铌一氧化物烧结体，其通过烧结上述铌一氧化物粉末而获得，并且具有多个孔径峰值在0.01μm至500μm的范围内，优选为多个峰值中的两个峰值的峰顶 其相对强度最高的孔径峰值分别为0.2〜0.7μm，0.7〜3μm的范围。 （3）使用上述烧结体的电容器及其制造方法; 和（4）使用上述电容器的电子电路和电子装置。

公开(公告)号：US20030104922A1

公开(公告)日：2003-06-05

申请号：US10005179

申请日：2001-12-04

发明人： Toshiyuki Sue

IPC分类号： C04B035/495

CPC分类号： C04B35/495 ,  C04B35/50 ,  C04B2235/3205 ,  C04B2235/3206 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3227 ,  C04B2235/3258 ,  C04B2235/326 ,  C04B2235/3267 ,  C04B2235/6565 ,  C04B2235/6567 ,  C04B2235/72 ,  C04B2235/724 ,  C04B2235/727 ,  C04B2235/768 ,  C04B2235/80 ,  C04B2235/81

摘要： The dielectric ceramic material of the present invention is constituted from a solid solution of which dominant crystal phase is a perovskite crystal, and the perovskite crystal consists of complex oxide of at least Ba, Sr, Mg, W and rare earth element, and is preferably used for dielectric resonator since this dielectric ceramic material makes it possible to achieve a high values of nullr and Q factor in a high frequency region, and decrease the absolute value of the temperature factor nullf of resonant frequency.

摘要翻译： 本发明的电介质陶瓷材料由主要结晶相为钙钛矿晶体的固溶体构成，钙钛矿晶体由至少Ba，Sr，Mg，W和稀土元素的复合氧化物构成，优选为 用于介质谐振器，因为这种介电陶瓷材料可以在高频区域中实现高的εir和Q因子值，并降低谐振频率的温度因子τf的绝对值。

公开(公告)号：US20020151429A1

公开(公告)日：2002-10-17

申请号：US09836309

申请日：2001-04-17

发明人： Jeffrey R. Jacquin ,  Randy E. Rose

IPC分类号： C04B035/48 ,  C04B035/495 ,  C04B035/478

CPC分类号： C04B35/117

摘要： The present invention provides a dielectric ceramic composition comprising a base material represented by the general formula: (x) Al2O3null(y) TiO2, where x and y are percentages of the total weight of the base material, with x being in the range of about 60 to about 96 and y being in the range of about 4 to about 40. Also provided is a first additive material comprising Nb2O5 and a second additive material comprising BaZrO3. In another embodiment the present invention provides a sintered dielectric ceramic composition comprising a base material represented by the general formula: (x) Al2O3null(y) TiO2, where x and y are percentages of the total weight of the base material, with x being in the range of about 60 to about 96 and y being in the range of about 4 to about 40. Also provided is a first additive material comprising Nb2O5 and a second additive material comprising BaZrO3.

摘要翻译： 本发明提供了一种介电陶瓷组合物，其包含由以下通式表示的基材：（x）Al 2 O 3 +（y）TiO 2，其中x和y是基材的总重量的百分比，x在约 60至约96，y在约4至约40的范围内。还提供了包含Nb 2 O 5的第一添加剂材料和包含BaZrO 3的第二添加剂材料。 在另一个实施方案中，本发明提供一种烧结电介质陶瓷组合物，其包含由以下通式表示的基材：（x）Al 2 O 3 +（y）TiO 2，其中x和y是基材的总重量的百分比，x在 约60至约96的范围，y在约4至约40的范围内。还提供了包含Nb 2 O 5的第一添加剂材料和包含BaZrO 3的第二添加剂材料。

公开(公告)号：US20020058580A1

公开(公告)日：2002-05-16

申请号：US10036205

申请日：2001-12-29

发明人： Galeb H. Maher ,  Samir Maher

IPC分类号： C04B035/468 ,  C04B035/495

CPC分类号： C04B35/6303 ,  B32B18/00 ,  B32B2311/08 ,  C04B35/465 ,  C04B35/468 ,  C04B35/4682 ,  C04B35/628 ,  C04B2235/3201 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3215 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3229 ,  C04B2235/3232 ,  C04B2235/3236 ,  C04B2235/3239 ,  C04B2235/3244 ,  C04B2235/3251 ,  C04B2235/3255 ,  C04B2235/3256 ,  C04B2235/3258 ,  C04B2235/3262 ,  C04B2235/3294 ,  C04B2235/3409 ,  C04B2235/365 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/656 ,  C04B2235/77 ,  C04B2235/78 ,  C04B2235/785 ,  C04B2235/786 ,  C04B2235/79 ,  C04B2237/346 ,  C04B2237/40 ,  C04B2237/408 ,  H01G4/1218 ,  H01G4/1227 ,  H01G4/1245 ,  H01G4/30

摘要： A dielectric ceramic powder and multilayer ceramic capacitors made from the powders are disclosed. A dielectric start powder mixture includes at least ninety weight percent essentially pure barium titanate powder having an average particle size of from 0.2 to 1.2 microns; from 0.2 to 2.5 weight percent of barium lithium borosilicate; from 0.1 to 0.3 weight percent of MnCO3; 0.4 to 1.50 weight percent Nb205 or a niobate compound, or a molar equivalent of Ta2O5 or a tantalum compound as a grain growth inhibitor; and, 0.4 to 1.2 weight percent of gadolinium oxide (Gd2O3). The start powder mixture is calcined and then sintered in an open zirconia setter at from 950null C. to 1,025null C. to produce a dielectric ceramic body that satisfies X7R capacitor performance characteristics; that includes no hazardous heavy metal oxides; and, that may include silver-palladium electrodes having 85 weight percent or more of silver.

摘要翻译： 公开了由粉末制成的电介质陶瓷粉末和多层陶瓷电容器。 电介质起始粉末混合物包含平均粒度为0.2-1.2微米的至少90重量％的基本上纯的钛酸钡粉末; 0.2至2.5重量％的硼硅酸钡锂; 0.1〜0.3重量％的MnCO 3; 0.4〜1.50重量％的Nb 2 O 5或铌酸盐化合物，或摩尔当量的Ta 2 O 5或钽化合物作为晶粒生长抑制剂; 和0.4〜1.2重量％的氧化钆（Gd 2 O 3）。 将起始粉末混合物煅烧，然后在开放式氧化锆固定器中在950℃至1050℃下烧结以制备满足X7R电容器性能特征的电介质陶瓷体; 不含有害重金属氧化物; 并且可以包括具有85重量％或更多银的银 - 钯电极。

公开(公告)号：US20040063566A1

公开(公告)日：2004-04-01

申请号：US10256974

申请日：2002-09-27

发明人： Christopher Caspers ,  Elijah Underhill ,  Xubai Zhang

IPC分类号： C04B035/465 ,  C04B035/495

CPC分类号： H01G4/1227 ,  B32B2307/75 ,  C04B35/4682 ,  C04B35/47 ,  C04B35/6262 ,  C04B2235/3205 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3225 ,  C04B2235/3229 ,  C04B2235/3232 ,  C04B2235/3236 ,  C04B2235/3244 ,  C04B2235/3249 ,  C04B2235/3251 ,  C04B2235/3255 ,  C04B2235/3256 ,  C04B2235/3258 ,  C04B2235/326 ,  C04B2235/3287 ,  C04B2235/3293 ,  C04B2235/6025 ,  C04B2235/604 ,  H01B3/12

摘要： Dielectric composite materials including an electronically tunable dielectric phase and a calcium and oxygen-containing compound are disclosed. The tunable phase may comprise a material such as barium strontium titanate. The calcium/oxygen compound may comprise CaO or a transition metal-containing compound such as Ca2Nb2O7 or CaTiO3. The material may also include a rare earth oxide dopant such as CeO2. The materials resist dielectric breakdown and possess improved combinations of electronic properties. The materials may be tailored for specific applications.

摘要翻译： 公开了包括电子可调电介质相和含钙和氧的化合物的介电复合材料。 可调相可以包括诸如钛酸锶钡的材料。 钙/氧化合物可以包含CaO或含过渡金属的化合物如Ca2Nb2O7或CaTiO3。 该材料还可以包括稀土氧化物掺杂剂如CeO 2。 该材料抵抗绝缘击穿，具有改进的电子性能组合。 这些材料可以针对特定应用而定制。

公开(公告)号：US20040063565A1

公开(公告)日：2004-04-01

申请号：US10256931

申请日：2002-09-27

发明人： Xunhu Dai

IPC分类号： C04B035/495

CPC分类号： H01G4/1254 ,  C04B35/495 ,  C04B35/6303 ,  C04B2235/3251 ,  C04B2235/3255 ,  C04B2235/3284 ,  C04B2235/3298 ,  C04B2235/3409 ,  C04B2235/36 ,  C04B2235/656 ,  C04B2235/76 ,  C04B2235/765 ,  C04B2235/80

摘要： An exemplary composition of matter and method for making high-efficiency, low-loss capacitors is disclosed as including inter alia a B2O3nullBi2O3nullZnO glass in admixture with material typically comprising about 30-40 wt % cubic phase (Bi0.5Zn0.5)(Zn0.5Nb1.5)O7 and about 60-70 wt % pseudo-orthorhombic phase Bi2(Zn1/3Nb1/3)2O7 (e.g., nullBZNnull). The mixture effectively reduces the sintering temperature of BZN from the range of about 950-1050null C. to the range of about 850-900null C., thereby rendering BZN suitable for cofiring with, for example, existing LTCC dielectrics. Disclosed features and specifications may be variously controlled, configured, adapted or otherwise optionally modified to further improve or otherwise optimize the sintering temperature of BZN and/or BZN-based materials. Exemplary embodiments of the present invention representatively provide for embedded high-efficiency, low-loss capacitors that may be readily integrated with existing portable ceramic technologies for the improvement of dielectric properties, device package form factors, weights and/or other manufacturing, device or material performance metrics.

摘要翻译： 公开了用于制造高效率，低损耗电容器的物质和方法的示例性组合物，其特别包括通常包含约30-40重量％立方相（Bi0.5Zn0.5）的材料与B2O3-Bi2O3-ZnO玻璃的混合物 ）（Zn0.5Nb1.5）O7和约60-70重量％的伪正交相Bi2（Zn1 / 3Nb1 / 3）2O7（例如“BZN”）。 该混合物有效地将BZN的烧结温度从约950-1050℃的范围降低至约850-900℃，从而使BZN适合与例如现有的LTCC电介质共烧。 公开的特征和规格可以被不同地控制，配置，适应或以其他方式任意地修改，以进一步改善或以其他方式优化BZN和/或BZN基材料的烧结温度。 本发明的示例性实施例代表性地提供了嵌入式高效率低损耗电容器，其可以容易地与现有的便携式陶瓷技术集成以改善介电性质，器件封装形状因子，重量和/或其它制造，器件或材料 性能指标。