title: Optimum Design Rules for CMOS Hall Sensors.
abstract: This manuscript analyzes the effects of design parameters, such as aspect ratio, doping concentration and bias, on the performance of a general CMOS Hall sensor, with insight on current-related sensitivity, power consumption, and bandwidth. The article focuses on rectangular-shaped Hall probes since this is the most general geometry leading to shape-independent results. The devices are analyzed by means of 3D-TCAD simulations embedding galvanomagnetic transport model, which takes into account the Lorentz force acting on carriers due to a magnetic field. Simulation results define a set of trade-offs and design rules that can be used by electronic designers to conceive their own Hall probes.
authors.affiliation: Department of Electrical, Electronic and Information Engineering "G. Marconi"-DEI, University of Bologna, Cesena Campus, Via Venezia 52, 47521 Cesena, Italy. marco.crescentini3@unibo.it.|Advanced Research Center on Electronic Systems (ARCES), University of Bologna, Cesena Campus, Via Venezia 52, 47521 Cesena, Italy. marco.crescentini3@unibo.it.
authors.forename: Marco
authors.initials: M
authors.lastname: Crescentini
authors.affiliation: Advanced Research Center on Electronic Systems (ARCES), University of Bologna, Cesena Campus, Via Venezia 52, 47521 Cesena, Italy. bionds86@alice.it.
authors.forename: Michele
authors.initials: M
authors.lastname: Biondi
authors.affiliation: Department of Electrical, Electronic and Information Engineering "G. Marconi"-DEI, University of Bologna, Cesena Campus, Via Venezia 52, 47521 Cesena, Italy. aldo.romani@unibo.it.|Advanced Research Center on Electronic Systems (ARCES), University of Bologna, Cesena Campus, Via Venezia 52, 47521 Cesena, Italy. aldo.romani@unibo.it.
authors.forename: Aldo
authors.initials: A
authors.lastname: Romani
authors.affiliation: Department of Electrical, Electronic and Information Engineering "G. Marconi"-DEI, University of Bologna, Cesena Campus, Via Venezia 52, 47521 Cesena, Italy. marco.tartagni@unibo.it.|Advanced Research Center on Electronic Systems (ARCES), University of Bologna, Cesena Campus, Via Venezia 52, 47521 Cesena, Italy. marco.tartagni@unibo.it.
authors.forename: Marco
authors.initials: M
authors.lastname: Tartagni
authors.affiliation: Department of Electrical, Electronic and Information Engineering "G. Marconi"-DEI, University of Bologna, Cesena Campus, Via Venezia 52, 47521 Cesena, Italy. enrico.sangiorgi@unibo.it.|Advanced Research Center on Electronic Systems (ARCES), University of Bologna, Cesena Campus, Via Venezia 52, 47521 Cesena, Italy. enrico.sangiorgi@unibo.it.
authors.forename: Enrico
authors.initials: E
authors.lastname: Sangiorgi
keywords: 3D physical simulations; Hall effect sensor design; Hall sensors; current-related sensitivity; design rules; power consumption