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    • 1. 发明授权
    • Magnetoresistive sensor element and method for reducing the angular error of a magnetoresistive sensor element
    • 磁阻传感器元件和减小磁阻传感器元件角度误差的方法
    • US07095596B2
    • 2006-08-22
    • US10535475
    • 2003-10-09
    • Peter SchmollngruberIngo HerrmannHenrik SiegleHartmut KittelPaul FarberUlrich May
    • Peter SchmollngruberIngo HerrmannHenrik SiegleHartmut KittelPaul FarberUlrich May
    • G11B5/33G11B5/127
    • B82Y25/00G01R33/093
    • A magnetoresistive sensor element is provided, having a magnetoresistive layer system which, in top view, is at least regionally striated. The sensor element operates on the basis of the GMR effect and is constructed according to the spin valve principle, the striated layer system featuring a reference layer having a direction of magnetization substantially uninfluenced by a direction of an outer magnetic field acting on it. During operation, the sensor element provides a measuring signal which changes as a function of a measurement angle between the component of the field strength of the outer magnetic field lying in the plane of the layer system, and the direction of magnetization, and from which this measurement angle is able to be ascertained. In addition, observed in a top view of the striated layer system, the angle between the direction of magnetization in the absence of the outer magnetic field and the longitudinal direction of the striated layer system is set in such a way that in response to an influence of the outer magnetic field having a defined field strength, which is selected from a predefined work interval, the angle error of the layer system, as a function of this angle and the field strength, is minimal.
    • 提供了一种磁阻传感器元件,具有磁阻层系统,其在顶视图中至少是区域性条纹化的。 传感器元件基于GMR效应进行操作,并且根据自旋阀原理构造,具有参考层的条纹层系统具有基本上不受作用在其上的外部磁场的方向的磁化方向的磁化方向。 在操作期间,传感器元件提供测量信号,该测量信号根据位于层系统的平面中的外部磁场的场强的分量与磁化方向之间的测量角度而变化,并且由此 可以确定测量角度。 此外,在条纹层系统的俯视图中观察到,在没有外磁场的磁化方向与条纹层系统的纵向方向之间的角度被设定为响应于影响 具有定义的场强的外部磁场,其从预定义的工作间隔中选择,层系统的角度误差作为该角度和场强的函数是最小的。
    • 4. 发明申请
    • MAGNETORESISTIVE SENSOR ELEMENT AND METHOD FOR REDUCING THE ANGULAR ERROR OF A MAGNETORESISTIVE SENSOR ELEMENT
    • 用于减小磁传感器元件的角度误差的磁传感器元件和方法
    • US20060152218A1
    • 2006-07-13
    • US10535475
    • 2003-10-09
    • Peter SchmollngruberIngo HerrmannHenrik SiegleHartmut KittelPaul FarberUlrich May
    • Peter SchmollngruberIngo HerrmannHenrik SiegleHartmut KittelPaul FarberUlrich May
    • G01R33/02
    • B82Y25/00G01R33/093
    • A magnetoresistive sensor element is provided, having a magnetoresistive layer system which, in top view, is at least regionally striated. The sensor element operates on the basis of the GMR effect and is constructed according to the spin valve principle, the striated layer system featuring a reference layer having a direction of magnetization substantially uninfluenced by a direction of an outer magnetic field acting on it. During operation, the sensor element provides a measuring signal which changes as a function of a measurement angle between the component of the field strength of the outer magnetic field lying in the plane of the layer system, and the direction of magnetization, and from which this measurement angle is able to be ascertained. In addition, observed in a top view of the striated layer system, the angle between the direction of magnetization in the absence of the outer magnetic field and the longitudinal direction of the striated layer system is set in such a way that in response to an influence of the outer magnetic field having a defined field strength, which is selected from a predefined work interval, the angle error of the layer system, as a function of this angle and the field strength, is minimal.
    • 提供了一种磁阻传感器元件,具有磁阻层系统,其在顶视图中至少是区域性条纹化的。 传感器元件基于GMR效应进行操作,并且根据自旋阀原理构造,具有参考层的条纹层系统具有基本上不受作用在其上的外部磁场的方向的磁化方向的磁化方向。 在操作期间,传感器元件提供测量信号,该测量信号根据位于层系统的平面中的外部磁场的场强的分量与磁化方向之间的测量角度而变化,并且由此 可以确定测量角度。 此外,在条纹层系统的俯视图中观察到,在没有外磁场的磁化方向与条纹层系统的纵向方向之间的角度被设定为响应于影响 具有定义的场强的外部磁场,其从预定义的工作间隔中选择,层系统的角度误差作为该角度和场强的函数是最小的。