公开(公告)号：US20240003996A1

公开(公告)日：2024-01-04

申请号：US18342839

申请日：2023-06-28

申请人： Resonac Corporation

发明人： Akira SAKAWAKI ,  Daizo ENDO ,  Sho TONEGAWA ,  Yasumasa WATANABE

IPC分类号： G01R33/06 ,  G01R33/00 ,  H01F10/16

CPC分类号： G01R33/063 ,  G01R33/0052 ,  H01F10/16

摘要： A magnetic sensor includes: a substrate; and a sensitive portion disposed on the substrate and having a longitudinal direction and a transverse direction. The sensitive portion senses a magnetic field by a magnetic impedance effect. The sensitive portion includes a soft magnetic material layer composed of a soft magnetic material having uniaxial magnetic anisotropy in a direction intersecting the longitudinal direction and sensing the magnetic field. The sensitive portion also includes a secondary soft magnetic material layer laminated between the substrate and the soft magnetic material layer. The secondary soft magnetic material layer is composed of a soft magnetic material with large saturation magnetization compared to the soft magnetic material constituting the soft magnetic material layer.