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    • 9. 发明授权
    • Planar magnetic element
    • 平面磁性元件
    • US06404317B1
    • 2002-06-11
    • US08701996
    • 1996-08-23
    • Tetsuhiko MizoguchiToshiro SatoMasashi SahashiMichio HasegawaHiroshi TomitaAtsuhito Sawabe
    • Tetsuhiko MizoguchiToshiro SatoMasashi SahashiMichio HasegawaHiroshi TomitaAtsuhito Sawabe
    • H01F500
    • H01F17/0006H01F2017/0066H01F2017/0086Y10T29/4902
    • Disclosed herein is a planar magnetic element comprising a substrate, a first magnetic layer arranged over the substrate, a first insulation layer arranged over the first magnetic layer, a planer coil formed of a conductor, having a plurality of turns, arranged over the first insulation layer and having a gap aspect ratio of at least 1, the gap aspect ratio being the ratio of the thickness of the conductor to the gap between any adjacent two of the turns, a second insulation layer arranged over the planar coil, and a second magnetic layer arranged over the second insulation layer. When used as an inductor, the planar magnetic element has a great quality coefficient Q. When used as a transformer, it has a large gain and a high voltage ratio. Since the element is small and thin, it is suitable for use in an integrated circuit, and can greatly contribute to miniaturization of electronic devices.
    • 本文公开了一种平面磁性元件,包括基板,布置在基板上的第一磁性层,布置在第一磁性层上的第一绝缘层,由导体形成的具有多个匝的平面线圈,布置在第一绝缘层 并且具有至少为1的间隙宽高比,间隙宽高比是导体的厚度与任何相邻的两个匝之间的间隙的比率,布置在平面线圈上的第二绝缘层和第二磁性 层布置在第二绝缘层上。 当用作电感器时,平面磁性元件具有很高的质量系数Q.当用作变压器时,其具有大的增益和高电压比。 由于元件小而薄,因此适用于集成电路,并且可以极大地有助于电子设备的小型化。