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    • 8. 发明授权
    • Ultra-low-profile tube-type magnetics
    • 超薄型管型磁性材料
    • US6040753A
    • 2000-03-21
    • US287157
    • 1999-04-06
    • Sriram RamakrishnanRobert Louis SteigerwaldWilliam Hull Bicknell
    • Sriram RamakrishnanRobert Louis SteigerwaldWilliam Hull Bicknell
    • H01F17/00H01F27/28H01F5/00
    • H01F17/0033H01F27/2804
    • A low-profile transformer or inductor includes a leg of a magnetically permeable core. A tube-type winding arrangement is made by use of a flat, flexible dielectric sheet, on one side of which a broad conductive area is affixed, and on the other side of which a plurality of mutually parallel elongated regions are affixed. The dielectric sheet is rolled into a tube defining a parting line which is perpendicular to the axes of elongation of the conductive strips. The discontinuous elongated strips are formed into a continuous winding by means of stitches. The stitches may be through vias extending through overlapping regions of the tube to interconnect ends of the strip conductors, or may be generated by an HDI conductor overlying the ends of the strip conductors, with through vias making connections to the ends of the strip conductors and to HDI conductors.
    • 低调的变压器或电感器包括一个可渗透磁芯的支脚。 管式绕组装置通过使用平坦的柔性电介质片材制成,其一侧上具有宽的导电区域,并且在另一侧上固定有多个相互平行的细长区域。 将电介质片轧制成限定与导电条的伸长轴垂直的分型线的管。 不连续的细长带通过缝合形成连续的卷绕。 线迹可以是通过延伸穿过管的重叠区域的通孔以互连带状导体的端部,或者可以由覆盖条状导体的端部的HDI导体产生,通孔形成与条状导体的端部的连接, 到HDI导体。