公开(公告)号：US12032043B2

公开(公告)日：2024-07-09

申请号：US17499513

申请日：2021-10-12

Applicant: SHOWA DENKO K.K.

Inventor： Sho Tonegawa ,  Akira Sakawaki ,  Yasumasa Watanabe ,  Daizo Endo ,  Tomoyuki Noguchi ,  Yuta Miyamoto

IPC: G01R33/06 ,  H01L43/02 ,  H01L43/12 ,  H10N50/01 ,  H10N50/80

CPC classification number: G01R33/063 ,  H10N50/01 ,  H10N50/80

Abstract: In a magnetic sensor using a magnetic impedance effect, sensitivity is improved as compared to the case where a width of a sensitive element in the short direction is equal from one end to the other end in the longitudinal direction. The magnetic sensor includes: a non-magnetic substrate; and a sensitive element that is provided on the substrate, composed of a soft magnetic material, having a longitudinal direction and a short direction, provided with uniaxial magnetic anisotropy in a direction crossing the longitudinal direction, having a width at a center portion in the longitudinal direction that is smaller compared to a width at each of both end portions in the longitudinal direction, and sensing a magnetic field by a magnetic impedance effect.

公开(公告)号：US20220128634A1

公开(公告)日：2022-04-28

申请号：US17499513

申请日：2021-10-12

Applicant: SHOWA DENKO K.K.

Inventor： Sho TONEGAWA ,  Akira Sakawaki ,  Yasumasa Watanabe ,  Daizo Endo ,  Tomoyuki Noguchi ,  Yuta Miyamoto

IPC: G01R33/06 ,  H01L43/12 ,  H01L43/02

Abstract: In a magnetic sensor using a magnetic impedance effect, sensitivity is improved as compared to the case where a width of a sensitive element in the short direction is equal from one end to the other end in the longitudinal direction. The magnetic sensor includes: a non-magnetic substrate; and a sensitive element that is provided on the substrate, composed of a soft magnetic material, having a longitudinal direction and a short direction, provided with uniaxial magnetic anisotropy in a direction crossing the longitudinal direction, having a width at a center portion in the longitudinal direction that is smaller compared to a width at each of both end portions in the longitudinal direction, and sensing a magnetic field by a magnetic impedance effect.