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    Barium lanthanum silicate glass-ceramics
    6.
    发明授权
    Barium lanthanum silicate glass-ceramics 失效
    钡硅酸镧玻璃陶瓷

    公开(公告)号：US07189668B2

    公开(公告)日：2007-03-13

    申请号：US11008151

    申请日：2004-12-10

    申请人： Michael Budd

    发明人： Michael Budd

    IPC分类号： C03C8/24 ,  C03C10/06

    CPC分类号： C03C10/0009 ,  C03C8/24

    摘要： This invention relates to glass-ceramic materials in the BaO—La2O3—SiO2 system, which are suitable for processing via a powder route, and which, after heat-treatment have a combination of high thermal expansion and excellent refractoriness. The precursor glass powders of the present invention have compositions on a weight percent basis of 10–55% BaO, 3–50% La2O3, 25–48% SiO2 and optionally up to 30% in total of other compatible metal oxides. The powders are substantially free from alkali metal oxides and from boron oxide such that the refractoriness of the glass-ceramic materials is not compromised. The materials may be advantageously employed at high temperatures in direct combination with other materials of high expansion or may be used to join or hermetically seal components made of other materials having similarly high expansion.

    摘要翻译： 本发明涉及BaO-La 2 O 3 -SiO 2体系中的玻璃 - 陶瓷材料，它们适用于通过粉末 路由，并且在热处理之后具有高热膨胀和优异耐火性的组合。 本发明的前体玻璃粉末的组成按10-55％BaO，3-50％La 2 O 3 3％，25-48％SiO 总共可以有多达30％的其它相容的金属氧化物。 这些粉末基本上不含碱金属氧化物和氧化硼，使得玻璃 - 陶瓷材料的耐火性不受影响。 这些材料可以在高温下有利地与其他高膨胀材料直接组合使用，或者可用于连接或气密地密封由具有类似高膨胀的其它材料制成的部件。

    Dielectric material with low temperature coefficient and high quality
    7.
    发明授权
    Dielectric material with low temperature coefficient and high quality 失效
    介电材料，温度系数低，质量好

    公开(公告)号：US6121174A

    公开(公告)日：2000-09-19

    申请号：US938158

    申请日：1997-09-26

    申请人： Hitoshi Yokoi ,  Hidetoshi Mizutani ,  Motohiko Sato ,  Kazushige Ohbayashi

    发明人： Hitoshi Yokoi ,  Hidetoshi Mizutani ,  Motohiko Sato ,  Kazushige Ohbayashi

    IPC分类号： C04B35/18 ,  C03C10/00 ,  C03C10/06 ,  C04B35/00 ,  H01B3/02 ,  H01B3/12 ,  H01P7/08 ,  H05K1/03 ,  H05K3/46 ,  C03C14/00

    CPC分类号： H01P7/082 ,  C03C10/0045 ,  H01P7/084 ,  H05K1/0306

    摘要： A dielectric material is disclosed which has a small absolute value of the temperature coefficient of resonance frequency and a high coefficient of unloaded quality. Also disclosed are a process for producing the dielectric material and multilayer and other circuit boards containing the dielectric material. The dielectric material is a highly densified material having a water absorption lower than 0.1%, which is obtained by mixing 95.5 to 99.5 percent by weight mixture of a glass frit and a strontium compound with 0.5 to 4.5 percent by weight titanium dioxide, compacting the resultant mixture, and sintering the compact at a relatively low temperature around 930.degree. C. This dielectric material is a glass ceramic containing strontium anorthite (SrAl.sub.2 Si.sub.2 O.sub.8) as the main crystalline phase, and may contain the TiO.sub.2, which remains unchanged after sintering. The absolute value of the temperature coefficient of resonance frequency of the dielectric material is 20 ppm/.degree. C. or lower, preferably 10 ppm/.degree. C. or lower, more preferably 5 ppm/.degree. C. or lower. The product of the unloaded quality coefficient and resonance frequency is 1,800 GHz or larger, preferably 2,500 GHz or larger. This material therefore has excellent dielectric properties.

    摘要翻译： 公开了一种介电材料，其谐振频率的温度系数的绝对值小，并且具有高的卸载质量系数。 还公开了用于制造包含电介质材料的电介质材料和多层和其它电路板的方法。 电介质材料是吸水率低于0.1％的高度致密化的材料，其通过将玻璃料和锶化合物的95.5-99.5重量％的混合物与0.5-4.5重量％的二氧化钛混合而获得，将所得物 混合物，并在930℃附近的相对较低的温度下烧结。该介电材料是含有锶钙长石（SrAl 2 Si 2 O 8）作为主要结晶相的玻璃陶瓷，并且可以含有在烧结后保持不变的TiO 2。 介电材料的共振频率的温度系数的绝对值为20ppm /℃以下，优选为10ppm /℃以下，更优选为5ppm /℃以下。 无载质量系数和谐振频率的乘积为1800GHz以上，优选为2,500GHz以上。 因此该材料具有优异的介电特性。

    Composition for producing low temperature co-fired substrate
    8.
    发明授权
    Composition for producing low temperature co-fired substrate 失效
    用于生产低温共烧基材的组合物

    公开(公告)号：US5468694A

    公开(公告)日：1995-11-21

    申请号：US156059

    申请日：1993-11-22

    申请人： Tomoyuki Taguchi ,  Hideyuki Kuribayashi ,  Jun Tanaka ,  Tomomi Konaga ,  Yoshihiro Morigami

    发明人： Tomoyuki Taguchi ,  Hideyuki Kuribayashi ,  Jun Tanaka ,  Tomomi Konaga ,  Yoshihiro Morigami

    IPC分类号： C03C8/14 ,  C03C10/00 ,  C03C10/06 ,  H05K1/03 ,  C03C3/064

    CPC分类号： C03C8/14 ,  C03C10/0054 ,  H05K1/0306

    摘要： A novel crystallizable glass composition for producing a novel low temperature co-fired glass-ceramic substrate having patterns of a low electrical-resistance conductor such as Ag, Ag-Pd, Au, and/or Cu is obtained. Being subjected to a firing process, the novel crystallizable glass can precipitate mullite as main crystalline phase, and at least one subordinate crystalline phase among forsterite, spinel, sapphirine, and similar crystalline phases. And also, the novel crystallizable glass powder composition with a inorganic filler as external additive having a minimum of 1.4 m.sup.2 /g. of mean specific surface area can precipitate both mullite phase and cordierite phase. The mixing weight ratio of the filler to the crystallizable glass powder is from 0.1/99.9 to 20/80. The crystallizable glass composition comprises following oxide components expressed in terms of percent by weight on the oxide basis; 45-58% of Al.sub.2 O.sub.3, 20-35% of SiO.sub.2, 5-15% of B.sub.2 O.sub.3, 5-20% of MgO, and 0-4% of alkali metal oxide. The substrates produced from the above compositions have high flexural strength, low dielectric constant, low loss factor, and controllable thermal expansion coefficient of ranging from about 30 to about 70.times.10.sup.- 7 /.degree.C. As for the substrate containing both mullite phase and cordierite phase, as the substrate has a low thermal expansion coefficient, it can be combined with AlN to produce a composite structure package.

    摘要翻译： 获得了具有诸如Ag，Ag-Pd，Au和/或Cu等低电阻导体图形的新型低温共烧玻璃陶瓷基板的可结晶玻璃组合物。 经过焙烧处理后，新型可结晶玻璃可以将莫来石沉淀为主晶相，并在镁橄榄石，尖晶石，蓝宝石和类似结晶相中至少存在一个以下结晶相。 另外，作为外部添加剂的无机填料的新型可结晶玻璃粉末组合物的最小值为1.4m 2 / g。 的平均比表面积可以沉淀莫来石相和堇青石相。 填料与可结晶玻璃粉末的混合重量比为0.1 / 99.9〜20/80。 可结晶玻璃组合物包含以氧化物为基准的以重量百分比表示的以下氧化物组分; 45-58％的Al2O3，20-35％的SiO2，5-15％的B2O3，5-20％的MgO和0-4％的碱金属氧化物。 由上述组合物制备的基材具有约30至约70×10 -7 /℃范围内的高弯曲强度，低介电常数，低损耗因数和可控热膨胀系数。对于含有莫来石相和堇青石相的基材 由于基板具有低的热膨胀系数，因此可以与AlN组合以产生复合结构封装。

    Glass-doped ceramic matrix composites
    9.
    发明授权
    Glass-doped ceramic matrix composites 失效
    玻璃掺杂陶瓷基复合材料

    公开(公告)号：US5284806A

    公开(公告)日：1994-02-08

    申请号：US1146

    申请日：1993-01-07

    申请人： Kishor P. Gadkaree

    发明人： Kishor P. Gadkaree

    IPC分类号： C03C10/00 ,  C03C14/00 ,  C03C10/06

    CPC分类号： C03C14/004 ,  C03C10/0045 ,  C03C14/002 ,  C03C2214/02 ,  C03C2214/04 ,  C03C2214/06 ,  C03C2214/20 ,  C03C2214/30

    摘要： Fiber-reinforced glass-ceramic matrix composites exhibiting substantially increased resistance to stress failure above the microcrack point in a hot oxidizing environment are provided by introducing into the composite a matrix additive consisting of a stable, refractory, chemically compatible glass. The glass is disposed as an intergranular glass phase in the crystalline aluminosilicate glass-ceramic matrix of the composite, which may further comprise a whisker addition to the matrix to increase the high-temperature viscosity of the intergranular glass.

    摘要翻译： 通过向复合材料中引入由稳定的耐火材料与化学相容的玻璃组成的基质添加剂，提供了在热氧化环境中显示出高于微裂纹点的应力破坏的抗性的纤维增强玻璃 - 陶瓷基复合材料。 玻璃在复合材料的结晶铝硅酸盐玻璃 - 陶瓷基体中作为晶间玻璃相设置，该基质还可以包含添加到基体中的晶须以增加晶间玻璃的高温粘度。