Microtesla Sensitivity and Noise of a Triple Collector Magnetotransistor

Amelichev V. V., Tikhonov R. D. and Cheremisinov A. A.

Modern Applied Science, 2013, vol. 7, issue 11, 26

Abstract: The sensitivity of a bipolar magnetotransistor with the base in a well has been studied in a microtesla magnetic field. The noise was experimentally measured to compare the performance of two designs of dual-collector lateral bipolar magnetotransistor, which are formed in a uniformly doped substrate or in a diffused well. The noise decreases in a diffused well. Acquiring an adequate understanding of the mechanism underlying the operation of the device should help to improve its magnetic sensitivity. A low velocity of surface recombination and an extraction of the injected electrons using a base–well ?-n junction determined the operating mode with the deviation of two charge carrier flows.

Date: 2013
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