The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 09, 2016
Filed:
Nov. 21, 2014
Applicant:
Allegro Microsystems, Llc, Worcester, MA (US);
Inventors:
Assignee:
ALLEGRO MICROSYSTEMS, LLC, Worcester, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
G01R 33/07 (2006.01); H01L 43/08 (2006.01); G01R 33/00 (2006.01); H01L 43/06 (2006.01);
U.S. Cl.
CPC ...
G01R 33/072 (2013.01); G01R 33/0052 (2013.01); G01R 33/077 (2013.01); H01L 43/065 (2013.01);
Abstract
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.