Spin dependent tunneling sensor

Details Spin dependent tunneling sensor Spin dependent tunneling sensor

1999-01-06

2000-06-06

Donovan, Lincoln

Electrical resistors

Resistance value responsive to a condition

Magnetic field or compass

360113, H01L 4300

Patent

active

060723823

ABSTRACT:
A magnetic field sensor having a junction structure in a sensor cell using a dielectric intermediate separating material with two major surfaces on one of which is a base anisotropic ferromagnetic thin-film which is also on a base electrode, and on the other of which there is at least one of a plurality of separate anisotropic ferromagnetic thin-film but of differing rotational responses to external magnetic fields. Similar structures have a separated film in each that can be interconnected to one another with the interconnections extending at least in part substantially parallel to the widths of the separated films, and the separated films can have lengths with gradually narrowing widths to the ends thereof as can the base electrode. One or more planar coils can be supported at least in part on the separated films.

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