Method for manufacturing flexible printed circuit boards
    4.
    发明授权
    Method for manufacturing flexible printed circuit boards 有权
    柔性印刷电路板的制造方法

    公开(公告)号:US08001684B2

    公开(公告)日:2011-08-23

    申请号:US11959194

    申请日:2007-12-18

    IPC分类号: H05K3/02

    摘要: An exemplary method for manufacturing flexible printed circuit board is provided. A metal foil is supplied from a first feeding roller. The metal foil has a first surface and a second surface on two opposite sides of the metal foil. A first coverlay having a number of first openings defined therein is supplied from a second feeding roller and laminated on the first surface of the metal foil. Electrical traces are formed with the metal foil. A second coverlay having a number of second openings defined therein is supplied from a third feeding roller and laminated on the second surface of the metal foil. Each of the second openings registers with the respective first opening so that the electrical traces are exposed from the corresponding first and second openings. The method can improve quality and efficiency of manufacturing flexible printed circuit boards in a hollowed out form.

    摘要翻译: 提供了制造柔性印刷电路板的示例性方法。 从第一供给辊供给金属箔。 金属箔在金属箔的两个相对侧上具有第一表面和第二表面。 具有限定在其中的多个第一开口的第一覆盖层从第二馈送辊供应并层压在金属箔的第一表面上。 用金属箔形成电迹线。 具有限定在其中的多个第二开口的第二覆盖物从第三进料辊供应并层压在金属箔的第二表面上。 每个第二开口与相应的第一开口对准,使得电迹线从相应的第一和第二开口露出。 该方法可以提高以空心形式制造柔性印刷电路板的质量和效率。

    Method for manufacturing printed circuit boards
    5.
    发明授权
    Method for manufacturing printed circuit boards 有权
    制造印刷电路板的方法

    公开(公告)号:US08088294B2

    公开(公告)日:2012-01-03

    申请号:US12110542

    申请日:2008-04-28

    IPC分类号: H01B13/00

    摘要: An exemplary method for manufacturing printed circuit boards is provided. In the method, a copper clad substrate having a copper layer thereon is provided. A surface of the copper layer is roughened by applying an atmospheric pressure plasma thereto. A photoresist layer is formed on the roughened surface of the copper layer. The photoresist layer is exposed. The photoresist layer is developed to form a patterned photoresist layer, thereby exposing portions of the copper layer. The exposed portions of the copper layer exposed are removed so that the remaining portions of the copper layer form electrical traces. The patterned photoresist layer is removed.

    摘要翻译: 提供了制造印刷电路板的示例性方法。 在该方法中,提供了具有铜层的铜包覆基板。 通过向其施加大气压等离子体使铜层的表面变粗糙。 在铜层的粗糙化表面上形成光致抗蚀剂层。 曝光光致抗蚀剂层。 显影光致抗蚀剂层以形成图案化的光致抗蚀剂层,从而暴露铜层的部分。 去除暴露的铜层的暴露部分,使得铜层的其余部分形成电迹线。 去除图案化的光致抗蚀剂层。

    Data-aware dynamic supply random access memory
    7.
    发明授权
    Data-aware dynamic supply random access memory 有权
    数据感知动态供应随机存取存储器

    公开(公告)号:US08345504B2

    公开(公告)日:2013-01-01

    申请号:US13009240

    申请日:2011-01-19

    IPC分类号: G11C11/40

    CPC分类号: G11C11/413 G11C11/412

    摘要: A Random Access Memory (RAM) with a plurality of cells is provided. In an embodiment, the cells of a same column are coupled to a same pair of bit-lines and are associated to a same power controller. Each cell has two inverters; the power controller has two power-switches. For the cells of the same column, the two power-switches respectively perform independent supply voltage controls for the two inverters in each cell according to data-in voltages of the bit-lines during Write operation.

    摘要翻译: 提供具有多个单元的随机存取存储器(RAM)。 在一个实施例中,同一列的单元耦合到同一对位线并且与相同的功率控制器相关联。 每个电池有两个逆变器; 电源控制器有两个电源开关。 对于同一列的单元,两个电源开关根据写操作期间位线的数据输入电压分别对每个单元中的两个反相器执行独立的电源电压控制。