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:
Feb. 12, 2019
Filed:
Mar. 10, 2016
Applicant:
Sii Semiconductor Corporation, Chiba-shi, Chiba, JP;
Inventor:
Mika Ebihara, Chiba, JP;
Assignee:
ABLIC INC., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 43/04 (2006.01); H01L 27/22 (2006.01); H01L 43/06 (2006.01); H01L 43/14 (2006.01); G01R 33/00 (2006.01); G01R 15/20 (2006.01); G01R 21/08 (2006.01); G01R 33/07 (2006.01); G01R 33/06 (2006.01);
U.S. Cl.
CPC ...
H01L 43/04 (2013.01); G01R 15/20 (2013.01); G01R 15/202 (2013.01); G01R 21/08 (2013.01); G01R 33/0011 (2013.01); G01R 33/06 (2013.01); G01R 33/07 (2013.01); G01R 33/077 (2013.01); H01L 27/22 (2013.01); H01L 43/06 (2013.01); H01L 43/065 (2013.01);
Abstract
A semiconductor device has a magnetic sensor configured to detect a direction of magnetism. The magnetic sensor includes Hall elements arranged on a surface of a semiconductor substrate, and a magnetic flux concentrator formed of a magnetic material having the function of amplifying magnetism. The magnetic flux concentrator is arranged on the semiconductor substrate and at least partly covers each of the Hall elements. A slit or a slot is formed in the magnetic material to inhibit generation of stress applied to the Hall elements.