Circuit board
    27.
    发明专利
    Circuit board 审中-公开
    电路板

    公开(公告)号:JP2010212438A

    公开(公告)日:2010-09-24

    申请号:JP2009056696

    申请日:2009-03-10

    Inventor: OIKAWA AKIRA

    Abstract: PROBLEM TO BE SOLVED: To provide a circuit board capable of controlling the characteristic impedance of signal wiring, suppressing an increase in a resistance value of a ground layer and also exhibiting countermeasures against high-frequency wave interference. SOLUTION: The circuit board has strip structure or microstrip structure having a ground layer 6 and signal wiring 3a, 3b arranged on the ground layer via an insulator layer 2 wherein a conductive portion forming the ground layer is formed into a mesh-like conductor 6B having a large number of through holes at positions opposing the signal wiring, and the characteristic impedance of the signal wiring 3a, 3b is adjusted. A solid electrode region 6A where no through holes are formed is formed outside the mesh-like conductor 6B, thereby suppressing an increase in the DC resistance of the ground layer 6. When the thickness of the insulator layer 2 is t, a distance U between the signal wiring and the solid electrode region is set in a range of 20t≥U≥3t. COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种能够控制信号布线的特性阻抗的电路板,抑制接地层的电阻值的增加,并且还表现出对抗高频波干扰的对策。 解决方案:电路板具有带状结构或微带结构,其具有经由绝缘体层2布置在接地层上的接地层6和信号布线3a,3b,其中形成接地层的导电部分形成网状 导体6B在与信号布线相对的位置处具有大量通孔,并且调节信号布线3a,3b的特性阻抗。 在网状导体6B的外侧形成没有形成通孔的固体电极区域6A,从而抑制接地层6的直流电阻的增加。当绝缘体层2的厚度为t时,距离U为 信号线和固体电极区域设定在20t≥U≥3t的范围内。 版权所有(C)2010,JPO&INPIT

    Noise insulation improved in packages and printed circuit high speed digital systems on board (pcb)

    公开(公告)号:JP2010519777A

    公开(公告)日:2010-06-03

    申请号:JP2009551177

    申请日:2008-02-21

    Abstract: Improved noise isolation for high-speed digital systems on packages and printed circuit boards is provided by the use of mixed alternating impedance electromagnetic bandgap (AI-EBG) structures and a power island configured to provide ultimate noise isolation. A power island is surrounded by a plurality of mixed AI-EBG structures to provide a power distribution network. In this structure, the gap around the power island provides excellent isolation from DC to the first cavity resonant frequency which is determined by the size of the structure and dielectric material. One AI-EBG structure provides excellent isolation from the first cavity resonant frequency of around 1.5 GHz to 5 GHz. The other AI-EBG structure provides excellent noise isolation from 5 GHz to 10 GHz. Through use of this novel configuration of AI-EBG structures, a combination effect of the hybrid AI-EBG structure provides excellent isolation far in excess of 10 GHz. The AI-EBG structure is a metallic-dielectric EBG structure that comprises two metal layers separated by a thin dielectric material (similar to power/ground planes in packages and PCBs). However, in the AI-EBG structure, only one of the metal layers has a periodic pattern which is preferably a two-dimensional rectangular lattice with each element consisting of a metal patch with four connecting metal branches.

    Inkjet printer and printing method using the same
    30.
    发明专利
    Inkjet printer and printing method using the same 有权
    喷墨打印机和使用该打印机的打印方法

    公开(公告)号:JP2010056522A

    公开(公告)日:2010-03-11

    申请号:JP2009115639

    申请日:2009-05-12

    Abstract: PROBLEM TO BE SOLVED: To provide an inkjet printer and a printing method using the same which can print a pattern having a plurality of orientations with uniform quality.
    SOLUTION: This inkjet printer includes: a first inkjet head 10 which prints in one direction; and a second inkjet head 20 which prints in the other direction intersected with the one direction. This printing method includes steps of: separating printing data into X-axis components and Y-axis components; printing the Y-axis components using the first inkjet head 10 printing in the Y-axis direction; and printing the X-axis components using the second inkjet head 20 printing in the X-axis direction.
    COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种可以打印具有均匀质量的多个取向的图案的喷墨打印机和使用该喷墨打印机的打印方法。 解决方案:该喷墨打印机包括:沿一个方向打印的第一喷墨头10; 以及在与该一个方向相交的另一个方向上打印的第二喷墨头20。 该打印方法包括以下步骤:将打印数据分离成X轴分量和Y轴分量; 使用第一喷墨头10在Y轴方向上打印Y轴部件; 并且使用第二喷墨头20在X轴方向上打印X轴部件。 版权所有(C)2010,JPO&INPIT

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