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:
Sep. 11, 2012
Filed:
Jun. 29, 2006
Takumi Uesugi, Tokyo, JP;
Satoshi Miura, Tokyo, JP;
Takumi Uesugi, Tokyo, JP;
Satoshi Miura, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
A magnetic field detecting element has a first lower layer, a second lower layer, a tunnel barrier layer, and an upper layer, wherein the first lower layer, the second lower layer, the tunnel barrier layer, and the upper layer are stacked adjacent to each other in this order, the first lower layer is formed in an amorphous state; and the second lower layer is made of cobalt, iron, nickel or a combination thereof and that is formed in a substantially amorphous state, the second lower layer being in touch with the first lower layer and the tunnel barrier layer on both sides and a film thickness of the second lower layer is approximately between 0.2 and 1.5 nm.