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:
Apr. 15, 2014
Filed:
Dec. 20, 2011
Dmytro Apalkov, San Jose, CA (US);
Alexey Vasilyevitch Khvalkovskiy, Milpitas, CA (US);
Vladimir Nikitin, Campbell, CA (US);
Mohamad Towfik Krounbi, San Jose, CA (US);
Xueti Tang, Fremont, CA (US);
SE Chung OH, Suwon, KR;
Woo Chang Lim, Seongnam-si, KR;
Jang Eun Lee, Suwon, KR;
Ki Woong Kim, Yongin-si, KR;
Kyoung Sun Kim, Gyeonggi-do, KR;
Dmytro Apalkov, San Jose, CA (US);
Alexey Vasilyevitch Khvalkovskiy, Milpitas, CA (US);
Vladimir Nikitin, Campbell, CA (US);
Mohamad Towfik Krounbi, San Jose, CA (US);
Xueti Tang, Fremont, CA (US);
Se Chung Oh, Suwon, KR;
Woo Chang Lim, Seongnam-si, KR;
Jang Eun Lee, Suwon, KR;
Ki Woong Kim, Yongin-si, KR;
Kyoung Sun Kim, Gyeonggi-do, KR;
Samsung Electronics Co., Ltd., Gyeonggi-Do, KR;
Abstract
A method and system for setting the direction of pinned layers in a magnetic junction are described. In one aspect, a magnetic field greater than the coercivity of the layers in a pinned layer but less than the coupling field between the layers is applied. In another aspect the pinned layers are switched from an anti-dual state to a dual state using a spin transfer torque current. In another aspect, a magnetic junction having a partial perpendicular anisotropy (PPMA) layer in the pinned layer is provided. In some aspects, the PPMA layer is part of a synthetic antiferromagnetic structure. In some embodiments, a decoupling layer is provided between the PPMA layer and another ferromagnetic layer in the pinned layer.