High Resolution Planar Hall Effect Sensors

L. Klein (Inventor)

Research output: Patent


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.
Original languageEnglish
Patent numberUS20140247043A1
StatePublished - 2017


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