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:
Mar. 23, 2010
Filed:
May. 31, 2006
Applicant:
Keiji Koga, Tokyo, JP;
Inventor:
Keiji Koga, Tokyo, JP;
Assignee:
TDK Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 29/82 (2006.01); G11C 11/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A magnetization direction in a magnetosensing layer () is perturbed near the magnetic connection between a magnetic yoke () and the magnetosensing layer (). If the magnetization direction of a region in the magnetosensing layer () facing a fixed layer which functions during read is not perturbed, reliability is improved. In this magnetometric sensor, a surface area Sof fixed layers () is made smaller than a surface area Sof the magnetosensing layer () so that, in the region of the magnetosensing layer () facing the fixed layer, the magnetization direction is perturbed less than in the surrounding region and reliability during data read is improved.