Magnetoresistive sensor with reduced operating temperature
    3.
    发明授权
    Magnetoresistive sensor with reduced operating temperature 失效
    具有降低工作温度的磁阻传感器

    公开(公告)号:US07064934B2

    公开(公告)日:2006-06-20

    申请号:US10459820

    申请日:2003-06-12

    IPC分类号: G11B5/39

    摘要: A magnetoresistive (MR) sensor having reduced operating temperature is disclosed. The MR sensor, which includes an MR stack having a magnetoresistive layer, is configured to operate in a current-perpendicular-to-plane (CPP) mode wherein a sense current flows substantially perpendicular to a longitudinal plane of the magnetoresistive layer. The MR sensor further includes a thermal sink layer positioned with respect to the MR stack to reduce an operating temperature of the magnetoresistive sensor. The thermal sink layer is made of a material having high thermal conductivity, and is preferably separated from the MR stack by a metallic cap or seed layer.

    摘要翻译: 公开了具有降低的工作温度的磁阻(MR)传感器。 包括具有磁阻层的MR堆叠的MR传感器被配置为以电流垂直于平面(CPP)模式工作,其中感测电流基本上垂直于磁阻层的纵向平面流动。 MR传感器还包括相对于MR堆叠定位的散热层,以降低磁阻传感器的工作温度。 散热层由具有高导热性的材料制成,并且优选地通过金属盖或种子层与MR堆叠分离。