A “toggling” type of magnetic random access memory (MRAM) has memory stacks arranged in the X-Y plane on the MRAM substrate with each memory stack having a plurality of toggle memory cells stacked along the Z axis. Each memory stack is located at an intersection region between two orthogonal write...http://www.google.com.au/patents/US6937497?utm_source=gb-gplus-sharePatent US6937497 - Magnetic random access memory with stacked toggle memory cells
