Printed circuit board, electronic device, high voltage power supply device, image forming apparatus, and method of manufacturing electronic device
    5.
    发明专利
    Printed circuit board, electronic device, high voltage power supply device, image forming apparatus, and method of manufacturing electronic device 有权
    印刷电路板,电子设备,高压电源装置,图像形成装置以及制造电子装置的方法

    公开(公告)号:JP2010267876A

    公开(公告)日:2010-11-25

    申请号:JP2009119073

    申请日:2009-05-15

    发明人: NAGASAKI OSAMU

    摘要: PROBLEM TO BE SOLVED: To protect a semiconductor component with an inexpensive and simple method from a discharge generated from a piezoelectric element owing to the pyroelectric effect in a process of a flow soldering. SOLUTION: An electronic device includes, for instance, a printed circuit board soldered with the use of a solder jet flow, a semiconductor component provided on the printed circuit board, and a piezoelectric element provided on the printed circuit board. Further, the electronic device includes a reference potential pattern and a land. The reference potential pattern imparts a reference potential to at least one of the semiconductor component and the piezoelectric element. The land is provided between the semiconductor component and the piezoelectric element, connected to the reference potential pattern, and formed by exposing the wiring part from a solder resist layer of the printed-wiring board. This causes the discharge current generated in the piezoelectric element owing to the pyroelectric effect in a process of the flow soldering using the solder jet flow to flow on a discharge channel formed by the piezoelectric, the land, the reference potential pattern, and the solder jet flow. COPYRIGHT: (C)2011,JPO&INPIT

    摘要翻译: 要解决的问题:由于在流动焊接的过程中的热电效应,为了保护半导体元件免受由压电元件产生的放电的廉价且简单的方法的影响。 解决方案:电子设备包括例如使用焊料喷射流焊接的印刷电路板,设置在印刷电路板上的半导体部件和设置在印刷电路板上的压电元件。 此外,电子设备包括参考电位图案和焊盘。 参考电位图案向半导体元件和压电元件中的至少一个赋予参考电位。 该区域设置在与基准电位图形连接的半导体元件和压电元件之间,并通过从布线基板的阻焊层露出布线部而形成。 这是由于在使用焊料喷射流动的流动焊接的过程中由压电元件产生的放电电流在由压电体,焊盘,基准电位图案和焊料射流形成的放电通道上流动 流。 版权所有(C)2011,JPO&INPIT

    Printed circuit board, and mounting structure and mounting method in printed circuit board
    6.
    发明专利
    Printed circuit board, and mounting structure and mounting method in printed circuit board 有权
    印刷电路板,印刷电路板的安装结构及安装方法

    公开(公告)号:JP2010171140A

    公开(公告)日:2010-08-05

    申请号:JP2009011233

    申请日:2009-01-21

    IPC分类号: H05K3/34

    摘要: PROBLEM TO BE SOLVED: To provide a mounting technique for increasing a permissible amount of warpage by suppressing the occurrence of a bridge defect by releasing excessive solder to a pattern arranged at a periphery of a land. SOLUTION: A printed circuit board 1 on which an electronic component with many lattice-shaped bottom surface electrodes is mounted has patterns 40 to which excessive solder is stuck and which are formed at fixed intervals in a diagonal direction of a land 10 on the printed circuit board opposed to the electrodes of the electronic component, wherein one or a plurality of patterns 40 are arranged in conformity with warpage shape of the component and of the printed circuit board 1. COPYRIGHT: (C)2010,JPO&INPIT

    摘要翻译: 要解决的问题:提供一种通过通过将过量的焊料释放到布置在焊盘的周边的图案来抑制桥接缺陷的发生来增加容许翘曲量的安装技术。 解决方案:其上安装有具有许多格子状底面电极的电子部件的印刷电路板1具有图案40,多余的焊料被卡住,并且以固定的间隔在焊盘10的对角线方向上形成 与电子部件的电极相对的印刷电路板,其中一个或多个图案40被配置成与部件和印刷电路板1的翘曲形状一致。版权所有(C)2010,JPO&INPIT