Patent ID: 8169821
Filing Date: 2012-05-01
Classification: G11C,Y10S

Abstract:
1. A spin-torque transfer memory random access memory (STTMRAM) element, employed in a STTMRAM array, where the STTMRAM element received electric current for storage of digital information, the STTMRAM element comprising: a fixed layer having a magnetization that is substantially fixed in one direction; a barrier layer formed upon the fixed layer; a free layer comprised of a low-crystallization temperature alloy of CoFeB—Z where Z is below 25 atomic percent of one or more of titanium, (Ti), yittrium (Y), zirconium (Zr), and vanadium (V), the free layer having a magnetization that is switchable; wherein during a write operation, a bidirectional electric current is applied across the STTMRAM element to switch the magnetization of the free layer between parallel and anti-parallel states relative to the magnetization of the fixed layer.