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. 20, 2012
Filed:
Jan. 07, 2009
Hiroaki Tanizaki, Itami, JP;
Shuichi Ueno, Tokyo, JP;
Yasumitsu Murai, Itami, JP;
Takaharu Tsuji, Tokyo, JP;
Hiroaki Tanizaki, Itami, JP;
Shuichi Ueno, Tokyo, JP;
Yasumitsu Murai, Itami, JP;
Takaharu Tsuji, Tokyo, JP;
Renesas Electronics Corporation, Kawasaki-shi, JP;
Abstract
A magnetic memory device is provided in which, even when a recording layer having an asymmetric shape and a local via are formed over a strap wiring with a sufficient distance allowed therebetween, increase in the size of the magnetic memory device can be suppressed. The magnetic memory device includes the strap wiring, the local via, and a magnetic recording element (TMR element). The TMR element includes a fixed layer and the recording layer. The planar shape of the recording layer is asymmetric with respect to the direction of the easy magnetization axis of the recording layer and is symmetric with respect to the axis of symmetry perpendicular to the easy magnetization axis. The contoured portion of the recording layer on the side closer to the center of area of the recording layer is opposed to the local via formation side.