US 11,940,506 B2
Magnetic sensor
Kenzo Makino, Tokyo (JP); and Norikazu Ota, Tokyo (JP)
Assigned to TDK CORPORATION, Tokyo (JP)
Filed by TDK CORPORATION, Tokyo (JP)
Filed on Aug. 5, 2022, as Appl. No. 17/881,666.
Application 17/881,666 is a continuation of application No. 17/084,376, filed on Oct. 29, 2020, granted, now 11,467,234.
Claims priority of application No. 2019-214275 (JP), filed on Nov. 27, 2019.
Prior Publication US 2022/0373620 A1, Nov. 24, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G01R 33/09 (2006.01); H01C 7/00 (2006.01); H01F 7/20 (2006.01)
CPC G01R 33/098 (2013.01) [G01R 33/096 (2013.01); H01F 7/20 (2013.01); H01C 7/00 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A magnetic sensor comprising:
a magnetoresistive element whose resistance changes with an external magnetic field;
an insulating layer;
a coil that generates a coil magnetic field, the coil magnetic field being a magnetic field to be applied to the magnetoresistive element, the coil including a conductor portion located on the insulating layer; and
a support member that supports the magnetoresistive element, the support member including a top surface opposed to the magnetoresistive element and a bottom surface located on a side opposite to the top surface, wherein
the coil is formed above the top surface of the support member, and the conductor portion is a curved portion that protrudes in a direction away from the magnetoresistive element and the bottom surface of the support member.