Electrical resistors – Resistance value responsive to a condition – Magnetic field or compass
Patent
1978-07-21
1980-02-12
Albritton, C. L.
Electrical resistors
Resistance value responsive to a condition
Magnetic field or compass
323 94H, H01L 4304
Patent
active
041886054
ABSTRACT:
An encapsulated Hall effect device is constructed on a thin substrate with an aperture. A semi-conductor chip having a plurality of connection leads and including a Hall effect element having a sensing surface is disposed in registration with the aperture. Encapsulation material surrounds the chip and aperture. The encapsulation material comprises a nonmagnetic portion which surrounds the sensing surface of the chip and a magnetically active portion which surrounds the surface of the chip opposite the sensing surface, with both portions together fully enclosing the chip.
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