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:
Dec. 27, 2005
Filed:
Jun. 21, 2004
Yimin Guo, San Jose, CA (US);
Tai Min, Milpitas, CA (US);
Pokang Wang, San Jose, CA (US);
Xi Zeng Shi, Fremont, CA (US);
Yimin Guo, San Jose, CA (US);
Tai Min, Milpitas, CA (US);
Pokang Wang, San Jose, CA (US);
Xi Zeng Shi, Fremont, CA (US);
Headway Technologies, Inc., Milpitas, CA (US);
Applied Spintronics, Inc., Milpitas, CA (US);
Abstract
An MTJ element is formed between orthogonal word and bit lines. The bit line is a composite line which includes a high conductivity layer and a soft magnetic layer under the high conductivity layer. During operation, the soft magnetic layer concentrates the magnetic field of the current and, due to its proximity to the free layer, it magnetically couples with the free layer in the MTJ. This coupling provides thermal stability to the free layer magnetization and ease of switching and the coupling may be further enhanced by inducing a shape or crystalline anisotropy into the free layer during formation.