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    • 81. 发明授权
    • Thin-film magnetic head having abrasion-resistant face opposing recording medium
    • 具有耐磨面的相对于记录介质的薄膜磁头
    • US06504687B1
    • 2003-01-07
    • US09660928
    • 2000-09-13
    • Akira MiyatakeEiji Umetsu
    • Akira MiyatakeEiji Umetsu
    • G11B539
    • G11B5/3903G11B5/11G11B5/255G11B5/3143G11B5/40
    • A thin-film magnetic head is provided, in which, even if sags occur in a shield layer when an opposing face opposing a medium is polished, the sags are unlikely to reach an MR device or another shield layer, whereby short-circuiting can be avoided. The thin-film magnetic head includes a laminate having a magnetoresistive device, two insulating layers provided on both sides of the magnetoresistive device in the thickness direction thereof, and two shield layers provided on the insulating layers on the magnetoresistive device, and a substrate on which the laminate is provided. In the thin-film magnetic head, the magnetoresistive device, the insulating layers, and the shield layers are exposed at the opposing face opposing a recording medium. At least one of the shield layers in contact with the insulating layers is composed of a magnetic layer and a rigid layer which is harder than the magnetic layer and is in contact with the insulating layer.
    • 提供了一种薄膜磁头,其中即使在与介质相对的相对面被抛光时,在屏蔽层中出现凹陷,则下垂不太可能到达MR器件或另一个屏蔽层,从而短路可以是 避免。 薄膜磁头包括具有磁阻装置的层叠体,在厚度方向上设置在磁阻装置的两侧的两个绝缘层,以及设置在磁阻装置的绝缘层上的两个屏蔽层,以及基板, 提供层压板。 在薄膜磁头中,磁阻装置,绝缘层和屏蔽层在与记录介质相对的相对面上露出。 与绝缘层接触的屏蔽层中的至少一个由磁性层和比磁性层更硬并与绝缘层接触的刚性层构成。