Optimal Geometry of CMOS Voltage-Mode and Current-Mode Vertical Magnetic Hall Sensors

Heidari, H., Bonizzoni, E., Gatti, U., Maloberti, F. and Dahiya, R. (2015) Optimal Geometry of CMOS Voltage-Mode and Current-Mode Vertical Magnetic Hall Sensors. In: IEEE Sensors 2015, Busan, South Korea, 01-04 Nov 2015, pp. 1-4. ISBN 9781479982035 (doi:10.1109/ICSENS.2015.7370365)

[img]
Preview
Text
108141.pdf - Accepted Version

385kB

Abstract

Four different geometries of a vertical Hall sensor are presented and studied in this paper. The current spinning technique compensates for the offset and the sensors, driven in current-mode, provide a differential signal current for a possible capacitive integration over a defined time-slot. The sensors have been fabricated using a 6-metal 0.18-μm CMOS technology and fully experimentally tested. The optimal solution will be further investigated for bendable electronics. Measurement results of the four structures over the 10 available samples show for the best geometry an offset of 41.66 ± 8 μT and a current-mode sensitivity of 9 ± 0.1 %/T. Since the figures widely change with geometry, a proper choice secures optimal performance.

Item Type:Conference Proceedings
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Heidari, Dr Hadi and Dahiya, Dr Ravinder
Authors: Heidari, H., Bonizzoni, E., Gatti, U., Maloberti, F., and Dahiya, R.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
ISBN:9781479982035
Copyright Holders:Copyright © 2015 IEEE
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher.
Related URLs:

University Staff: Request a correction | Enlighten Editors: Update this record

Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
659051Flexible Electronics Device Modelling (FLEXELDEMO)Ravinder DahiyaEngineering & Physical Sciences Research Council (EPSRC)EP/M002519/1ENG - ENGINEERING ELECTRONICS & NANO ENG