Hall element
First Claim
1. A Hall element comprising a single zone of homogenous semiconductor material having a cross-sectional plane and comprising a plurality of electrodes arranged in groups of four, wherein each group of four electrodes has first and second current electrodes and first and second sensor electrodes, wherein each group of four electrodes has cross-sections arranged point asymmetrically in the cross-sectional plane in relation to the center of the polygon along at least one side of said polygon, wherein the positions of said electrode cross-sections on a side of said polygon are approximately determined by conformal mappings of a fictitious group of non-overlapping cross-sections of fictitious electrodes equal in number to said plurality of electrodes and which are located in a fictitious plane on the circumference or a unit circle symmetrically with respect to the center of the unit circle, said fictitious electrodes being divided into groups of four equally spaced fictitious electrodes.
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Abstract
A Hall element has a polygonal plane cross-section. In the cross-sectional plane, on the sides of the cross-section, are cross-sections of electrodes, the number of which is a multiple of four. The locations and cross-sections of the electrodes are mathematically conformal mappings into the polygonal plane cross-section of a fictitious group of non-overlapping cross-sections of electrodes in equal number transformed from a fictitious plane in which they are arranged radially symmetric on the circumference of a circle. The radius of the circle is equal to one. The fictitious group is sub-divided into groups of four within which the cross-sections of the corresponding fictitious electrodes are always at the same distances to each other on the circumference of the circle.
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Citations
7 Claims
- 1. A Hall element comprising a single zone of homogenous semiconductor material having a cross-sectional plane and comprising a plurality of electrodes arranged in groups of four, wherein each group of four electrodes has first and second current electrodes and first and second sensor electrodes, wherein each group of four electrodes has cross-sections arranged point asymmetrically in the cross-sectional plane in relation to the center of the polygon along at least one side of said polygon, wherein the positions of said electrode cross-sections on a side of said polygon are approximately determined by conformal mappings of a fictitious group of non-overlapping cross-sections of fictitious electrodes equal in number to said plurality of electrodes and which are located in a fictitious plane on the circumference or a unit circle symmetrically with respect to the center of the unit circle, said fictitious electrodes being divided into groups of four equally spaced fictitious electrodes.
Specification