Patent ID: 6081445
Filing Date: 2000-06-27
Classification: G11C

Abstract:
A method of writing and/or reading arrays of magnetoresistive cells comprising the steps of:providing an array of magnetoresistive cells each having an easy and hard magnetization axis and end domain magnetization, with each cell in the array having associated therewith a first current line that generates an easy axis field and a second orthogonal current line that generates a hard axis field when current is applied thereto;applying an initializing hard axis field to the array in a first direction that switches or maintains end domain magnetization in all cells in a fixed direction; andselecting a cell in the array for writing including supplying a current to the first current line associated with the selected cell to generate an easy axis field and, simultaneously, supplying a current to the second current line associated with the selected cell to generate a hard axis field, the current being supplied to the second current line in a direction that produces a hard axis field in the first direction.