Magnetic field detector and manufacturing method thereof

Details Magnetic field detector and manufacturing method thereof Magnetic field detector and manufacturing method thereof

2006-03-20

2010-06-08

Enad, Elvin G (Department: 2832)

Electrical resistors

Resistance value responsive to a condition

Magnetic field or compass

C324S207210, C324S252000

Reexamination Certificate

active

07733210

ABSTRACT:
A magnetic field detector includes: a magnet; a detecting magnetic resistance element having a layer structure containing a ferromagnetic layer, the resistance being changed when a direction of magnetization of the ferromagnetic layer is changed; and a reference magnetic resistance element having substantially the same layer structure as that of the detecting magnetic resistance element. A magnetic field, the magnetic intensity of which is higher than the saturation magnetic field, is impressed by the magnet in a direction which is sensed by the ferromagnetic layer of the reference magnetic resistance element.

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