Patent ID: 7206223
Filing Date: 2007-04-17
Classification: G11C

Abstract:
1. A method of writing a memory cell of an MRAM, comprising: applying a first magnetic field to a memory cell during a first time period, the first magnetic field having a first direction and a first magnitude; applying a second magnetic field to the memory cell during a second time period, the second magnetic field having a second direction and a second magnitude, wherein a start of the second time period follows a start of the first time period; wherein an end of the second time period follows an end of the first time period, and wherein the first time period overlaps the second time period; and applying a third magnetic field to the memory cell during a third time period, wherein the third time period overlaps at least a portion of the second time period, the third magnetic field having a third direction and a third magnitude, wherein a start of the third time period follows the end of the first time period, and wherein the third direction of the third magnetic field is approximately opposite to the first direction of the first magnetic field.