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. 29, 2005
Filed:
Nov. 10, 2003
Zhenghong Qian, Eden Prairie, MN (US);
James M. Daughton, Eden Prairie, MN (US);
Dexin Wang, Eden Prairie, MN (US);
Mark C. Tondra, Minneapolis, MN (US);
Zhenghong Qian, Eden Prairie, MN (US);
James M. Daughton, Eden Prairie, MN (US);
Dexin Wang, Eden Prairie, MN (US);
Mark C. Tondra, Minneapolis, MN (US);
NVE Corporation, Eden Prairie, MN (US);
Abstract
A ferromagnetic thin-film based magnetic field sensor having a nonmagnetic intermediate layer with two major surfaces on opposite sides thereof upon one of which a magnetization reference layer is provided and upon the other there being provided a sensing layer. A spacer layer is provided on the sensing film to separate this sensing film from an augmenting film with the spacer layer being sufficiently thick so as to significantly reduce or eliminate topological coupling between the sensing and augmenting films, and to significantly randomize spin states of emerging electrons traversing therethrough.