MAGNETISM DETECTING DEVICE

To suppress degradation in detection accuracy.SOLUTION: A magnetism detecting device comprises a magnetoresistive element and a detection section that detects an external magnetic field on the basis of a resistance value of the magnetoresistive element. The magnetoresistive element includes a fixed...

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Bibliographic Details
Main Authors HOSOMI MASAKATSU, HIGO YUTAKA, OMORI HIROYUKI
Format Patent
LanguageEnglish
Japanese
Published 11.04.2023
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
SEMICONDUCTOR DEVICES
TESTING
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Summary:To suppress degradation in detection accuracy.SOLUTION: A magnetism detecting device comprises a magnetoresistive element and a detection section that detects an external magnetic field on the basis of a resistance value of the magnetoresistive element. The magnetoresistive element includes a fixed layer in which a magnetizing direction is fixed, a non-magnetic layer disposed on the fixed layer, and a free layer that is disposed on the non-magnetic layer and in which the magnetizing direction changes over time. A magnetic anisotropic axis of the free layer is parallel to the magnetizing direction of the fixed layer.SELECTED DRAWING: Figure 3 【課題】検出精度の低下を抑制する。【解決手段】実施形態に係る磁気検出装置は、磁気抵抗素子と、前記磁気抵抗素子の抵抗値に基づいて外部磁場を検出する検出部と、を備え、前記磁気抵抗素子は、磁化方向が固定された固定層と、前記固定層上に配置された非磁性層と、前記非磁性層上に配置され、磁化方向が時間によって変動するするフリー層と、を備え、前記フリー層の磁気異方性軸は、前記固定層の磁化方向と平行である。【選択図】図３
Bibliography:Application Number: JP20210161251