Patent ID: 7372119

Claim:
A Hall device comprising on a substrate: a cross-shaped magnetometric sensing surface formed of a rectangular portion and four extensions provided one on each side of said rectangular portion, a first pair of said extensions being mutually opposed to each other, a second pair of said extensions being mutually opposed to each other and perpendicular to said first pair of said extensions; a pair of power terminal portions for inputting a current/voltage provided on said first pair of said extensions; a pair of output terminal portions for outputting Hall voltage provided on said second pair of said extensions; and slits extending from each of said power terminals and said output terminals, said slits in said power terminals extending in a direction in which said extensions of said first pair oppose one another, said slits in said output terminals extending in a direction in which said extensions of said second pair oppose one another, said slits completely splitting said power terminal portions and said output terminal portions and at least partially splitting each extension, wherein a ratio of a length of a border of a split to a distance between two midpoints is no less than ⅓ and no greater than 3, each extension of said first and second pairs being split into first and second sub extensions by one of said slits, each of said pair of output terminal portions having first and second output terminal sub portions, said first output terminal sub portions being provided on said first sub extensions, said second output terminal sub portions being provided on said second sub extensions, one of said midpoints being a midway point equidistant from said first output terminal sub portions, the other of said midpoints being a midway point equidistant from said second output terminal sub portions, said length of a border of a split being a sum of a death of a slit in one of said extensions multiplied by two and a width of a slit.