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    • 10. 发明授权
    • Magnetic detecting element having antiferromagnetic film having predetermined space in track width direction and method for manufacturing the same
    • 磁性检测元件具有在磁道宽度方向上具有预定空间的反铁磁膜及其制造方法
    • US07045224B2
    • 2006-05-16
    • US10675435
    • 2003-09-30
    • Naoya HasegawaEiji UmetsuMasamichi SaitoYosuke Ide
    • Naoya HasegawaEiji UmetsuMasamichi SaitoYosuke Ide
    • G11B5/127
    • B82Y25/00G01R33/093Y10T428/1129Y10T428/1143Y10T428/115Y10T428/1157Y10T428/1171Y10T428/1193
    • The present invention provides a magnetic detecting element including a pinned magnetic layer and a first antiferromagnetic layer which constitutes an exchange coupling film and the structures of which are optimized for properly pinning magnetization of the pinned magnetic layer, improving reproduction output and properly complying with a narrower gap, and a method of manufacturing the magnetic detecting element. The pinned magnetic layer has a synthetic ferrimagnetic structure, and the first antiferromagnetic layer has a predetermined space C formed at the center in the track width direction to produce exchange coupling magnetic fields only between the first antiferromagnetic layer and both side portions of a first magnetic layer of the pinned magnetic layer. Therefore, the magnetization of the pinned magnetic layer can be pinned, and an improvement in reproduction output and gap narrowing can be realized. Furthermore, a magnetic detecting element with high resistance to electrostatic damage (ESD) can be manufactured. Thus, a magnetic detecting element adaptable for a future higher recording density can be provided.
    • 本发明提供了一种磁检测元件,其包括钉扎磁性层和构成交换耦合膜的第一反铁磁层,其结构被优化以适当地钉扎钉扎磁性层的磁化,提高再生产量并适当地符合较窄的 间隙,以及制造磁检测元件的方法。 钉扎磁性层具有合成亚铁磁性结构,第一反铁磁性层具有形成在轨道宽度方向中心的预定空间C,仅在第一反铁磁性层与第一磁性层的两侧部之间产生交换耦合磁场 的固定磁性层。 因此,可以使被钉扎的磁性层的磁化被固定,并且可以实现再现输出和间隙变窄的改善。 此外,可以制造具有高抗静电损伤(ESD)的磁性检测元件。 因此,可以提供适用于将来更高记录密度的磁检测元件。