Magnetic field sensing element combining a circular vertical hall magnetic field sensing element with a planar hall element

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United States of America Patent

PATENT NO 8922206
APP PUB NO 20130057257A1
SERIAL NO

13226694

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Abstract

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A magnetic field sensor includes a circular vertical Hall (CVH) sensing element and at least one planar Hall element. The CVH sensing element has contacts arranged over a common implant region in a substrate. In some embodiments, the at least one planar Hall element is formed as a circular planar Hall (CPH) sensing element also having contacts disposed over the common implant region. A CPH sensing element and a method of fabricating the CPH sensing element are separately described.

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Patent Owner(s)

Patent OwnerAddress
ALLEGRO MICROSYSTEMS LLC955 PERIMETER ROAD MANCHESTER NH 03103-3353

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Foletto, Andrea Annecy, FR 61 1566
Friedrich, Andreas P Metz-Tessy, FR 76 1649
Pepka, Gary T Pembroke, US 9 167

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