Patent ID: 8357983

Claim:
A Hall effect element, comprising: a substrate comprised of a material with a selected Miller index of (100) plane; a Hall plate comprised of epi material disposed on a surface of the substrate, wherein the Hall plate comprises: a major planar surface comprising: an outer perimeter bounded by a square outer boundary, wherein the square outer boundary has four sides with first lengths, wherein four longest sides of the outer perimeter are tangent to the four sides of the square outer boundary, wherein two of the four longest sides of the outer perimeter are parallel to a [011] Miller direction and another different two of the four longest sides of the outer perimeter are orthogonal to the [011] Miller direction, wherein the outer perimeter comprises: four inner corners, each having a respective two orthogonal sides meeting at a respective vertex, wherein, for each inner corner, vectors taken along the respective two orthogonal sides and pointing toward the respective vertex point inward toward the Hall plate, wherein a first line taken between vertices of a first pair of opposing inner corners is at an angle of forty five degrees relative to the [011] Miller direction and a second line taken between vertices of a second pair of opposing inner corners is orthogonal to the first line, wherein the major planar surface further comprises: a square core region bounded by lines joining adjacent ones of the vertices of the four inner corners, wherein the square core region has four sides with second lengths; and four electrical contacts, each electrical contact in electrical communication with the Hall plate, each electrical contact having a respective center, a respective length and a respective width, wherein a third line and a fourth line drawn between the centers of respective opposing ones of the electrical contacts have third lengths, wherein the third line is parallel to the Miller direction and the fourth line is orthogonal to the third line, wherein a first ratio corresponding to the third lengths divided by the second lengths is in a range of about 1.1 to about 1.4.