Magnetoresistive sensor element having a wide linear response and robust nominal performance and manufacturing method thereof

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United States of America

PATENT NO 12204005
APP PUB NO 20240019509A1
SERIAL NO

18251296

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Abstract

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A magnetoresistive element for a magnetic sensor, the magnetoresistive element including a tunnel barrier layer between a reference layer having a fixed reference magnetization and a sense layer having a free sense magnetization, wherein the sense magnetization includes a stable vortex configuration. The magnetoresistive element further includes a reference pinning layer in contact with the reference layer and pining the reference magnetization by exchange-bias at a first blocking temperature. The magnetoresistive element further includes a sense pinning layer in contact with the sense layer and pining the sense magnetization by exchange-bias at a second blocking temperature lower that the first blocking temperature. Additionally, a method for manufacturing the magnetoresistive element.

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Patent Owner(s)

  • ALLEGRO MICROSYSTEMS, LLC

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Childress, Jeffrey San Jose, US 16 16
Strelkov, Nikita Meylan, FR 9 0
Timopheev, Andrey Vif, FR 15 0

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