Abstract
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 language | English |
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| Patent number | US20140247043A1 |
| State | Published - 2017 |