Patent ID: 11895929
Assignee: ROHM CO., LTD.
Field: Measurement (Instruments)
Classification: CPC H  G | IPC G  H

Claim 9:
10. An electronic component, comprising:
a first Hall element and a second Hall element formed on a substrate including a semiconductor region; and
a control circuit that detects a magnetic field acting on the first Hall element and the second Hall element,
the first Hall element including
a first drive electrode,
a second drive electrode,
a first ground electrode arranged separately from the first drive electrode in a first direction and arranged separately from the second drive electrode in a second direction different from the first direction,
wherein the second direction is orthogonal to the first direction;
a second ground electrode arranged separately from the first drive electrode in the second direction and arranged separately from the second drive electrode in the first direction,
a first insulation layer formed in a perpendicular direction from a surface of the substrate, wherein
the first insulation layer divides the first Hall element into a first region, a second region, a third region, and a fourth region,
the first drive electrode is in the first region,
the first ground electrode is in the second region,
the second ground electrode is in the third region,
the second drive electrode is in the fourth region, and
the first insulation layer is located between the first drive electrode and the first ground electrode in the first direction and between the first drive electrode and the second ground electrode in the second direction, and
a first detection electrode group that detects a Hall voltage generated in a state in which a first current including components perpendicular to the surface of the substrate flows from the first drive electrode to the first ground electrode and the second ground electrode and in which a second current including components perpendicular to the surface of the substrate flows from the second drive electrode to the first ground electrode and the second ground electrode, the second Hall element including
a third drive electrode,
a fourth drive electrode,
a third ground electrode arranged separately from the third drive electrode in the second direction and arranged separately from the third drive electrode in the first direction,
a fourth ground electrode arranged separately from the third drive electrode in the first direction and arranged separately from the fourth drive electrode in the second direction, and
a second detection electrode group that detects a Hall voltage generated in a state in which a third current including components perpendicular to the surface of the substrate flows from the third drive electrode to the third ground electrode and the fourth ground electrode and in which a fourth current including components perpendicular to the surface of the substrate flows from the fourth drive electrode to the third ground electrode and the fourth ground electrode,
wherein the control circuit detects the magnetic field acting on the first Hall element and the second Hall element, based on a difference between the Hall voltage detected by the first detection electrode group and the Hall voltage detected by the second detection electrode group.