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    • 19. 发明授权
    • Ground vias for enhanced preamp heat release in hard disk drives
    • 用于硬盘驱动器中增强前置放热释放的通孔
    • US08233287B2
    • 2012-07-31
    • US12024857
    • 2008-02-01
    • Alex CayabanSzu-Han HuYasunari OoyabuMartin John McCaslin
    • Alex CayabanSzu-Han HuYasunari OoyabuMartin John McCaslin
    • H05K7/10
    • G11B33/1426G11B33/123H05K1/0206H05K1/056H05K1/189H05K2201/09509H05K2201/09554
    • Described is a preamp flex cable for use in a hard drive. The flex cable incorporates a stiffener layer operable to provide a mechanical support, an insulating layer provided over the stiffener layer and having at least one via provided therein to expose the stiffener layer, and at least one conductive layer provided over the insulating layer. The at least one conductive layer forms an electrical circuit and at least one heat removing element that extends through the via and establishes a contact with the stiffener layer. In one implementation, the heat removing element includes a rectangular plate having a recessed center portion and an edge portion. The recessed center portion protrudes through the at least one via in the insulating layer to mechanically couple with the stiffener. In another implementation, the heat removing element includes first portion and second rectangular portions. The first portion protrudes through the at least one via in the insulating layer to thermally couple with the stiffener and the second portion is disposed over the insulating layer, such that the second portion can be thermally coupled to the preamp.
    • 描述了一种用于硬盘驱动器的前置放大器柔性电缆。 柔性电缆包括可操作以提供机械支撑件的加强层,设置在加强层上的绝缘层,并且具有设置在其中的至少一个通孔以露出加强层,以及设置在绝缘层上的至少一个导电层。 所述至少一个导电层形成电路和至少一个散热元件,其延伸穿过所述通孔并与所述加强层建立接触。 在一个实施方式中,除热元件包括具有凹入的中心部分和边缘部分的矩形板。 凹陷的中心部分穿过绝缘层中的至少一个通孔突出以与加强件机械地联接。 在另一实施方式中,除热元件包括第一部分和第二矩形部分。 第一部分穿过绝缘层中的至少一个通孔突出,以与加强件热耦合,并且第二部分设置在绝缘层上方,使得第二部分可以热耦合到前置放大器。
    • 20. 发明授权
    • Wired circuit board and producing method thereof
    • 有线电路板及其制造方法
    • US08164002B2
    • 2012-04-24
    • US12004038
    • 2007-12-20
    • Jun IshiiYasunari Ooyabu
    • Jun IshiiYasunari Ooyabu
    • H05K1/03
    • H05K1/0259G11B5/486H05K1/056H05K1/167H05K3/28H05K2201/0329
    • A wired circuit board includes a metal supporting board, an insulating base layer formed on the metal supporting board, a conductive pattern formed on the insulating base layer, a first semiconductive layer formed on a surface of the insulating base layer exposed from the conductive pattern, an insulating cover layer formed on the conductive pattern and the first semiconductive layer and a second semiconductive layer formed on a surface of the insulating cover layer. The first semiconductive layer is electrically connected to the conductive pattern and the metal supporting board, and the second semiconductive layer is electrically connected to the metal supporting board.
    • 布线电路板包括金属支撑板,形成在金属支撑板上的绝缘基底层,形成在绝缘基底层上的导电图案,形成在从导电图案露出的绝缘基底层的表面上的第一半导体层, 形成在导电图案和第一半导体层上的绝缘覆盖层和形成在绝缘覆盖层的表面上的第二半导体层。 第一半导电层电连接到导电图案和金属支撑板,并且第二半导体层电连接到金属支撑板。