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Tsinghua Science and Technology 2022, 27(3): 443-454 https://doi.org/10.26599/TST.2021.9010061
Open Access | Issue | Published: 13 November 2021

Developments and Applications of Tunneling Magnetoresistance Sensors

Show Author's Information Shaohua Yan,  Zitong Zhou,  Yaodi Yang,  Qunwen Leng( ),  Weisheng Zhao( )
School of Integrated Circuit Science and Engineering, Beihang University, Beijing 100191, China
Beihang-Goertek Joint Microelectronics Institute, Qingdao Research Institute of Beihang University, Qingdao 266100, China
Keywords:
noise, tunneling magnetoresistance (TMR) sensor, linearization, Wheatstone bridge configuration
Cite this article:
Yan S, Zhou Z, Yang Y, et al. Developments and Applications of Tunneling Magnetoresistance Sensors. Tsinghua Science and Technology, 2022, 27(3): 443-454. https://doi.org/10.26599/TST.2021.9010061
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Abstract Full text About this article

Magnetic sensors based on tunneling magnetoresistance (TMR) effect exhibit high sensitivity, small size, and low power consumption. They have gained a lot of attention and have potential applications in various domains. This study first introduces the development history and basic principles of TMR sensors. Then, a comprehensive description of TMR sensors linearization and Wheatstone bridge configuration is presented. Two key performance parameters, the field sensitivity and noise mechanisms, are considered. Finally, the emerging applications of TMR sensors are discussed.


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Developments and Applications of Tunneling Magnetoresistance Sensors

Show Author's information Shaohua Yan, Zitong Zhou, Yaodi Yang, Qunwen Leng( ), Weisheng Zhao( )
School of Integrated Circuit Science and Engineering, Beihang University, Beijing 100191, China
Beihang-Goertek Joint Microelectronics Institute, Qingdao Research Institute of Beihang University, Qingdao 266100, China

Abstract

Magnetic sensors based on tunneling magnetoresistance (TMR) effect exhibit high sensitivity, small size, and low power consumption. They have gained a lot of attention and have potential applications in various domains. This study first introduces the development history and basic principles of TMR sensors. Then, a comprehensive description of TMR sensors linearization and Wheatstone bridge configuration is presented. Two key performance parameters, the field sensitivity and noise mechanisms, are considered. Finally, the emerging applications of TMR sensors are discussed.

Keywords: noise, tunneling magnetoresistance (TMR) sensor, linearization, Wheatstone bridge configuration

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Received: 27 February 2021
Revised: 30 June 2021
Accepted: 04 August 2021
Published: 13 November 2021
Issue date: June 2022

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Acknowledgements

This work was financially supported by Beijing Municipal Science and Technology Project (No. Z201100004220002), the International Collaboration Project B16001, the Key Research and Development Program of Shandong Province of China (No. 2020S020201-01621), and the Magnetic Sensor Innovation Platform from Laoshan District.

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