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    • 8. 发明授权
    • Multilayer circuit board and electronic device
    • 多层电路板和电子设备
    • US08217270B2
    • 2012-07-10
    • US11990860
    • 2006-08-18
    • Tadahiro OhmiAkinobu TeramotoAkihiro Morimoto
    • Tadahiro OhmiAkinobu TeramotoAkihiro Morimoto
    • H05K1/03
    • H05K1/024H05K3/4602H05K3/4626H05K3/4673H05K2201/0116H05K2201/0195H05K2201/0209H05K2201/0254
    • A multilayered circuit board which is provided with a low-permittivity interlayer insulating film, and which can significantly improve the performance such as signal transmission characteristics of the multilayered circuit board such as a package and a printed board, because the surface in contact with the interlayer insulating film of the circuit board has no unevenness to eliminate the lowering of production yield and the deterioration of high-frequency signal transmission characteristics; and electronic equipment using the circuit board. The multilayered circuit board comprises, mounted on a substrate, plural wiring layers and plural insulating layers positioned between the plural wiring layers, wherein at least part of the plural insulating layers are composed of a porous insulating layer containing at least any of materials selected from a porous material group consisting of porous material, aerogel, porous silica, porous polymer, hollow silica and hollow polymer, and a non-porous insulating layer formed on at least one surface of the porous insulating layer and not containing the porous material group.
    • 具有低介电常数层间绝缘膜的多层电路板,能够显着地提高诸如封装和印刷电路板的多层电路板的信号传输特性等性能,因为与中间层 电路板的绝缘膜没有不均匀性,消除了生产成本的降低和高频信号传输特性的恶化; 和使用电路板的电子设备。 多层电路板包括安装在基板上的多个布线层和位于多个布线层之间的多个绝缘层,其中多个绝缘层的至少一部分由多孔绝缘层组成,多孔绝缘层至少含有选自 由多孔材料,气凝胶,多孔二氧化硅,多孔聚合物,中空二氧化硅和中空聚合物组成的多孔材料组和形成在多孔绝缘层的至少一个表面上并且不包含多孔材料组的无孔绝缘层。
    • 10. 发明授权
    • Valve for vacuum exhaustion system
    • 真空排气系统阀门
    • US07988130B2
    • 2011-08-02
    • US12208949
    • 2008-09-11
    • Tadahiro OhmiNobukazu IkedaMichio YamajiMasafumi KitanoAkihiro Morimoto
    • Tadahiro OhmiNobukazu IkedaMichio YamajiMasafumi KitanoAkihiro Morimoto
    • F16K7/17
    • F16K7/14F16K27/003F16K51/02
    • The invention provides a valve and a method of operating the valve that makes it possible to reduce the diameter of the vacuum exhaustion pipings to make the facility for the vacuum exhaustion system small, which results in lower costs and shortens vacuum exhaustion time, and also which can prevent corrosion, cloggings, and seal leakages inside the piping system caused by the accumulation of substances produced by the decomposition of gas flowing through the pipings. In particular, in accordance with the present invention, an aluminum passivation is applied on the piping parts, i.e. the valve and others, that are used in the vacuum exhaustion system so as to inhibit gas decomposition caused by temperature rise at the time of baking so that components for reduction in the diameter size in the vacuum exhaustion system are provided. Thus, corrosion, cloggings and seat leakages caused by gas decomposition are prevented.
    • 本发明提供了一种操作阀门的阀门和方法,其使得可以减小真空排气管道的直径,从而使得真空耗尽系统的设备较小,这导致降低成本并缩短真空耗尽时间,以及哪些 可以防止由流经管道的气体分解产生的物质积聚引起的管道系统内的腐蚀,堵塞和密封泄漏。 特别地,根据本发明,在真空耗尽系统中使用的管道部件即阀等上施加铝钝化,以便抑制由于烘烤时由温度升高引起的气体分解 提供了用于减小真空排气系统中的直径尺寸的部件。 因此,防止由气体分解引起的腐蚀,堵塞和座椅泄漏。