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MAGNETIC SENSOR AND HALL SENSOR, EACH USING ANOMALOUS HALL EFFECT, AND METHOD FOR MANUFACTURING HALL SENSOR
MAGNETIC SENSOR AND HALL SENSOR, EACH USING ANOMALOUS HALL EFFECT, AND METHOD FOR MANUFACTURING HALL SENSOR
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机译:磁传感器和霍尔传感器,每个使用异常霍尔效应,以及制造霍尔传感器的方法
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摘要
Provided is a magnetic sensor using an anomalous Hall effect. Nonmagnetic metal layers are disposed on and below a ferromagnetic material so as to form a Hall voltage corresponding to a change in applied magnetic field. Linearity and saturation magnetization of the magnetic sensor depend on a thickness of the nonmagnetic metal layer and a thickness of the ferromagnetic material. In addition, provided is a Hall sensor using an anomalous Hall effect. Nonmagnetic metal layers are formed with respect to a ferromagnetic layer, and CoFeSiB constituting the ferromagnetic layer has a thickness ranging from 10 Å to 45 Å. A magnetic easy axis is formed in a direction perpendicular to an interface due to interface inducing action of the nonmagnetic metal layers. In addition, the Hall sensor includes a sensing region having a rhombic shape, an electrode line portion having a line shape, and a pad portion.
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