%0 Journal Article %T Hall Sensors for Extreme Temperatures %A Jakub Jankowski %A Semir El-Ahmar %A Maciej Oszwaldowski %J Sensors %D 2011 %I MDPI AG %R 10.3390/s110100876 %X We report on the preparation of the first complete extreme temperature Hall sensor. This means that the extreme-temperature magnetic sensitive semiconductor structure is built-in an extreme-temperature package especially designed for that purpose. The working temperature range of the sensor extends from £¿270 ¡ãC to +300 ¡ãC. The extreme-temperature Hall-sensor active element is a heavily n-doped InSb layer epitaxially grown on GaAs. The magnetic sensitivity of the sensor is ca. 100 mV/T and its temperature coefficient is less than 0.04 %/K. This sensor may find applications in the car, aircraft, spacecraft, military and oil and gas industries. %K Hall sensors %K n-InSb/GaAs %K extreme temperatures %K magnetic sensors %U http://www.mdpi.com/1424-8220/11/1/876