Magnetic sensor and method of manufacturing the same
AssigneeTDK Corporation
InventorsNaoki Ohta, Keisuke Takasugi
Life of this patent
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Abstract
A magnetic sensor that ensures the height of the yoke and that guides magnetic flux in the direction in which the magnetic field sensing film detects a magnetic field includes a first magnetic field detection element that has a first magnetic field sensing film that detects a magnetic field in a first direction, and a first yoke that includes a first portion that is located on a side of the first magnetic field sensing film with respect to the first direction, and a second portion that is in contact with the first portion in a direction that is orthogonal to the first direction. The average dimension of the second portion in the first direction is larger than the average dimension of the first portion in the first direction.
Claims8
A magnetic sensor comprising:
- a first magnetic field detection element that has a first magnetic field sensing film that detects a magnetic field in a first direction;
- and
- a yoke that includes a first portion and a second portion that is in contact with the first portion in a direction that is orthogonal to the first direction,
- wherein an average dimension of the second portion in the first direction is larger than an average dimension of the first portion in the first direction, and
- the yoke is made of a soft magnetic material.
Dependencies are inferred from the claim text.