A peripheral circuitry is provided adjacent to a memory array and conducts read and write operations from and to the memory array. A power supply voltage line and a ground line for supplying an operating voltage to the peripheral circuitry supply a power supply voltage and a ground voltage, respectively....http://www.google.com/patents/US7233519?utm_source=gb-gplus-sharePatent US7233519 - Thin film magnetic memory device for conducting data write operation by application of a magnetic field
