Patent ID: 6791870
Filing Date: 2004-09-14
Classification: G11C,H01L

Abstract:
A method of storing and retrieving information, comprising:providing a magnetoresistive memory device, comprising: a memory bit comprising a stack which includes a first magnetic layer, a second magnetic layer, and a non-magnetic layer between the first and second magnetic layers; the memory bit storing information as a relative orientation of a magnetic moment in the first magnetic layer to a magnetic moment in the second magnetic layer; a first conductive line proximate the stack and configured for utilization in reading information from the memory bit; and a second conductive line spaced from the stack by a greater distance than the first conductive line is spaced from the stack, and configured for utilization in writing information to the memory bit; operating the first conductive line at a maximum amperage of from about 500 nanoamps to about 1 microamp during reading of information from the memory bit; and operating the second conductive line at a maximum amperage of from about 1 milliamp to about 10 milliamps during writing of information to the memory bit.