Disclosed herein are toggle-mode magnetoresistive random access memory
(MRAM) devices having small-angle toggle write lines, and related methods
of toggle-mode switching MRAM devices. Also disclosed are layouts for
MRAM devices constructed according to the disclosed principles. Generally
speaking, the disclosed principles provide for non-orthogonally aligned
toggle-mode write lines used to switch toggle-mode MRAM devices that
employ a bias field to decrease the threshold needed to switch the
magnetic state of each device. While the conventional toggle-mode write
lines provide for the desired orthogonal orientation of the applied
magnetic fields to optimize device switching, the use of a bias field
affects this orthogonal orientation. By non-orthogonally aligning the two
write lines as disclosed herein, the detrimental affect of the bias field
may be compensated for such that the net fields applied to the device for
both lines are again substantially orthogonal, as is desired.