HIGH RESOLUTION PLANAR HALL EFFECT SENSORS

The present invention discloses a planar Hall-effect sensor with a magnetic sensing region of an elongated shape, wherein, for a ratio of long axis length to short axis length greater than a predetermined number, effective single magnetic domain behavior is exhibited in the sensing region, the sensi...

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Bibliographic Details
Main Authors PAPERNO EUGENE, GROSZ ASAF, AMRUSI SHAI, SINWANI OMER, SCHULTZ MORDECHAI, MOR VLADISLAV, FAIVINOV IGOR, KLEIN LIOR
Format Patent
LanguageEnglish
Published 04.09.2014
Subjects
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Summary:The present invention discloses a planar Hall-effect sensor with a magnetic sensing region of an elongated shape, wherein, for a ratio of long axis length to short axis length greater than a predetermined number, effective single magnetic domain behavior is exhibited in the sensing region, the sensing having shape-induced uniaxial magnetic anisotropy with the easy axis parallel to the long axis of the magnetic sensing region; further wherein the magnitude of the uniaxial magnetic anisotropy depends on the ratio of the thickness of the sensing region to the length of the short axis.
Bibliography:Application Number: US201414195228