Dual-emitter lateral magnetometer
AssigneesThe Hong Kong University of Science and Technology, R&D AG, Inc.
InventorsJack Lau, Christopher C. T. Nguyen, Ping Ko, Philip C. Chan
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Abstract
A magnetometer or magnetic field sensor includes semiconductor material deposited laterally on an insulating substrate. The semiconductor material is alternating regions of n- and p-type silicon provided with two cathodes, an anode and a triggering node. Upon application of a triggering pulse to a switch on the sensor, a carrier domain is formed. In the presence of a magnetic field this carrier domain is deflected to one side thus causing an imbalance in the current collected at the two cathodes.
Claims6
A magnetic sensor formed of semiconductor material deposited laterally on an insulating substrate in the form of a pair of bipolar transistors connected back-to-back, comprising;
- a pair of cathodes;
- an anode;
- and
- a triggering node for switching the sensor from an off-mode to an on-mode in response to a triggering pulse applied thereto so that the sensor may detect a magnetic field as an imbalance between the currents collected at said pair of cathodes.
Dependencies are inferred from the claim text.