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:
Dec. 06, 2016
Filed:
Feb. 06, 2014
Applicant:
Hgst Netherlands B.v., Amsterdam, NL;
Inventors:
Hardayal S. Gill, Palo Alto, CA (US);
Kuok S. Ho, Emerald Hills, CA (US);
Suping Song, Fremont, CA (US);
Assignee:
HGST Netherlands B.V., Amsterdam, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/39 (2006.01); G01R 33/09 (2006.01);
U.S. Cl.
CPC ...
G01R 33/098 (2013.01); G11B 5/398 (2013.01); G11B 5/3912 (2013.01); G11B 5/3932 (2013.01); G11B 2005/3996 (2013.01);
Abstract
A scissor type magnetic sensor having a magnetic bias structure extending from the back edge of first and second magnetic free layers. The magnetic bias structure is constructed of a magnetic material having a high magnetic moment, such as NiFe with a high Fe content or CoFe. The high magnetic moment bias structure reduces magnetic signal asymmetry while also maintaining high signal amplitude.