Patent ID: 11885835
Assignee: TDK CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 13:
14. A magnetic field detection apparatus comprising:
a magnetoresistive effect element,
a coil including a first tier part and a second tier part opposed to each other in a first axis direction, with the in magnetoresistive effect element being interposed between the first tier part and the second tier part, the coil being configured to be supplied with a current and thereby configured to generate an induction magnetic field to be applied to the magnetoresistive effect element in a second axis direction;
a substrate;
a first nonmagnetic insulator; and
a second nonmagnetic insulator, wherein
the first tier part includes a plurality of first conductors each extending in a third axis direction, the plurality of first conductors being arranged in the second axis direction and coupled in parallel to each other,
the second tier part includes a second conductor extending in the third axis direction or a plurality of the second conductors each extending in the third axis direction, the plurality of second conductors being arranged in the second Axis direction and coupled in parallel to each other;
the first tier part, the first nonmagnetic insulator, the magnetoresistive effect element, the second nonmagnetic insulator, and the second tier part are stacked in this order over the substrate, and
in the first axis direction, a first distance between the magnetoresistive effect element and the first tier part is greater than a second distance between the magnetoresistive effect element and the second tier part.