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.

Date of Patent:
Sep. 13, 2016

Filed:

Jan. 09, 2008
Applicants:

Eric W. Singleton, Maple Plain, MN (US);

Qing He, Plymouth, MN (US);

Jae-young Yi, Shakopee, MN (US);

Matt Johnson, Edina, MN (US);

Zheng Gao, Savage, MN (US);

Dimitar V. Dimitrov, Edina, MN (US);

Song S. Xue, Edina, MN (US);

Inventors:

Eric W. Singleton, Maple Plain, MN (US);

Qing He, Plymouth, MN (US);

Jae-Young Yi, Shakopee, MN (US);

Matt Johnson, Edina, MN (US);

Zheng Gao, Savage, MN (US);

Dimitar V. Dimitrov, Edina, MN (US);

Song S. Xue, Edina, MN (US);

Assignee:

SEAGATE TECHNOLOGY LLC, Scotts Valley, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/39 (2006.01); G01R 33/09 (2006.01); B82Y 25/00 (2011.01);
U.S. Cl.
CPC ...
G01R 33/093 (2013.01); G11B 5/398 (2013.01); G11B 5/3912 (2013.01); B82Y 25/00 (2013.01);
Abstract

A magnetic sensor assembly includes first and second shields each comprised of a magnetic material. The first and second shields define a physical shield-to-shield spacing. A sensor stack is disposed between the first and second shields and includes a seed layer adjacent the first shield, a cap layer adjacent the second shield, and a magnetic sensor between the seed layer and the cap layer. At least a portion of the seed layer and/or the cap layer comprises a magnetic material to provide an effective shield-to-shield spacing of the magnetic sensor assembly that is less than the physical shield-to-shield spacing.


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