MAGNETORESISTIVE SENSOR WITH REDUCED STRESS SENSITIVITY

    公开(公告)号:US20200011943A1

    公开(公告)日:2020-01-09

    申请号:US16028738

    申请日:2018-07-06

    Abstract: A magnetoresistive sensor includes a first non-magnetic layer, a second non-magnetic layer, and a magnetic free bi-layer. The magnetic free bi-layer is disposed between first non-magnetic layer and the second non-magnetic layer, the magnetic free bi-layer including a first magnetic free layer coupled to a second magnetic free layer. The first magnetic free layer is coupled to the first non-magnetic layer, and the second magnetic free layer is coupled to the second non-magnetic layer. The second non-magnetic layer comprises a non-magnetic material having an atomic radius within 10% of an atomic radius of at least one of the first magnetic free layer and the second magnetic free layer.

    MAGNETORESISTIVE SENSOR AND FABRICATION METHOD FOR A MAGNETORESISTIVE SENSOR

    公开(公告)号:US20210373094A1

    公开(公告)日:2021-12-02

    申请号:US17324446

    申请日:2021-05-19

    Abstract: Exemplary embodiments are directed to magnetoresistive sensors and corresponding fabrication methods for magnetoresistive sensors. One example of a magnetoresistive sensor includes a layer stack, wherein the layer stack includes a reference layer having a fixed reference magnetization, wherein the fixed reference magnetization has a first magnetic orientation. The layer stack furthermore includes a magnetically free system of a plurality of layers, wherein the magnetically free system has a magnetically free magnetization, wherein the magnetically free magnetization is variable in the presence of an external magnetic field, and wherein the magnetically free magnetization has a second magnetic orientation in a ground state. The magnetically free system has two ferromagnetic layers and an interlayer, wherein the interlayer is arranged between the two ferromagnetic layers and includes magnesium oxide. The layer stack furthermore includes a barrier layer, which is arranged between the reference layer and the magnetically free system and includes magnesium oxide.

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