Magnetic field sensor contacts

Details Magnetic field sensor contacts Magnetic field sensor contacts

1991-01-28

1992-10-06

Lateef, Marvin M.

Electrical resistors

Resistance value responsive to a condition

Magnetic field or compass

H01L 4300

Patent

active

051535572

ABSTRACT:
A magnetic field sensor, such as a magnetoresistor, Hall effect device or magnetotransistor, comprising an active layer of indium antimonide on the surface of a substrate having a length substantially greater than its width. A conductive contact is on the active layer at each end thereof and a plurality of shorting bar contacts are on the active layer and spaced along the length of the active layer between the end contacts. The contacts are each of a thin layer of a highly conductive n-type conductivity semiconductor material which has a low sheet resistivity and a low contact resistance with the active layer. A layer of a conductive metal may be provided on the semiconductor material layer of the contact, and a thin layer of highly conductive n-type indium antimonide may be provided between the semiconductive material layer and the active layer.

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