Low-temperature co-fired ceramics material and multilayer wiring board using the same
    13.
    发明申请
    Low-temperature co-fired ceramics material and multilayer wiring board using the same 有权
    低温共烧陶瓷材料和使用其的多层线路板

    公开(公告)号:US20050288167A1

    公开(公告)日:2005-12-29

    申请号:US11166367

    申请日:2005-06-27

    摘要: Objects of the present invention are to provide a low-temperature co-fired ceramic material having a coefficient of linear thermal expansion controlled and has a high dielectric constant, and to reduce the warpage of a fired product even if it has an unsymmetrical lamination structure in a multilayer wiring board in which glass-ceramic mixed layers of different compositions are laminated. A low-temperature co-fired ceramic material in accordance with the present invention includes: SiO2—B2O3—Al2O3-alkaline earth metal oxide based glass, alumina, titania, and cordierite; glass, titania, and cordierite; or glass, titania, and mullite. When a multilayer wiring board is made of the low-temperature co-fired ceramic material, the content of cordierite or mullite of the substrate material is adjusted to control a difference in a coefficient of linear thermal expansion between the layers of the substrate material to not more than 0.25×10−6/° C.

    摘要翻译: 本发明的目的是提供一种具有控制线性热膨胀系数并具有高介电常数的低温共烧陶瓷材料,并且即使其具有不对称层压结构也能减少烧制产品的翘曲 层叠不同组成的玻璃 - 陶瓷混合层的多层布线基板。 根据本发明的低温共烧陶瓷材料包括:SiO 2 -S 2 O 3 O 3 -Al < 碱土金属氧化物基玻璃,氧化铝,二氧化钛和堇青石; 玻璃,二氧化钛和堇青石; 或玻璃,二氧化钛和莫来石。 当由低温共烧陶瓷材料制成多层布线板时,调整基板材料的堇青石或莫来石的含量,以控制基板材料层之间的线性热膨胀系数的差异 大于0.25×10 -6 /℃

    Composite soft magnetic material
    15.
    发明授权
    Composite soft magnetic material 失效
    复合软磁材料

    公开(公告)号:US5348800A

    公开(公告)日:1994-09-20

    申请号:US13210

    申请日:1993-02-01

    摘要: A composite soft magnetic material is produced from soft magnetic metal (e.g., Sendust) particles by coating the particles with a non-magnetic metal oxide (e.g., .alpha.-alumina) in a mechano-fusion manner, or heat treating the particles to form a diffusion layer of .alpha.-alumina thereon, coating the coated particles with a high resistance soft magnetic substance (e.g., ferrite), and sintering the double coated particles under pressure as by hot pressing or plasma activated sintering. It exhibits high saturation magnetic flux density, magnetic permeability, and electric resistivity. The non-magnetic metal oxide intervening between the soft magnetic metal and the high resistance soft magnetic substance is effective in reducing core loss.

    摘要翻译: 复合软磁性材料由软磁性金属(例如,Sendust)颗粒通过以机械融合的方式用非磁性金属氧化物(例如,α-氧化铝)涂覆颗粒,或者热处理颗粒形成 在其上的α-氧化铝扩散层,用高电阻软磁性物质(例如,铁氧体)涂覆涂覆的颗粒,并且通过热压或等离子体活化烧结在压力下烧结双涂层颗粒。 它表现出高饱和磁通密度,磁导率和电阻率。 介于软磁金属和高电阻软磁性物质之间的非磁性金属氧化物有效地减少铁损。