Patent ID: 7102916

Claim:
A method for determining a desired anisotropy axis angle for a magnetic random access memory (MRAM) device, the method comprising: selecting a plurality of initial values for the anisotropy axis angle; determining, for each selected initial value of the anisotropy axis angle, a minimum thickness for at least one ferromagnetic layer of the MRAM device, wherein said minimum thickness corresponds to a predefined activation energy of an individual cell within the MRAM device; determining, for each selected value of the anisotropy axis angle, a minimum applied magnetic field value in a wordline direction and a bitline direction of the MRAM device so as maintain said predefined activation energy; and calculating, for each selected value of the anisotropy axis angle, an applied power per bit value; wherein the desired anisotropy axis angle is the selected anisotropy axis angle corresponding to a minimum power per bit value.