Sensor
AssigneeKabushiki Kaisha Toshiba
InventorsAkira Kikitsu, Hitoshi Iwasaki
Life of this patent
Estimating the term…
Abstract
According to one embodiment, a sensor includes a nonmagnetic layer and a plurality of magnetic field sensors. The nonmagnetic layer has a first surface and a second surface. The magnetic field sensors are arranged along the second surface. The second surface is between the first surface and the magnetic field sensors. Each of the magnetic field sensors includes a first magnetic layer, a second magnetic layer provided between the first magnetic layer and the nonmagnetic layer, and an intermediate layer provided between the first magnetic layer and the second magnetic layer. The intermediate layer is nonmagnetic. A distance between the first surface and the second magnetic layer is not more than a pitch of the magnetic field sensors.
Claims20
A sensor, comprising:
- a nonmagnetic layer having a first surface and a second surface;
- and
- a plurality of magnetic field sensors arranged along the second surface,
- the second surface being between the first surface and the magnetic field sensors, each of the magnetic field sensors including
- a first magnetic layer,
- a second magnetic layer provided between the first magnetic layer and the nonmagnetic layer, and
- an intermediate layer provided between the first magnetic layer and the second magnetic layer, the intermediate layer being nonmagnetic,
- a distance between the first surface and the second magnetic layer being not more than a pitch of the magnetic field sensors.
Dependencies are inferred from the claim text.