Patent ID: 9449688
Filing Date: 2016-09-20
CPC Classification: G11C

Claim Text:
1. A resistive memory comprising resistive elements arranged in rows and in columns, the resistance of each resistive element being capable of alternating between a high value in a first range of values and a low value in a second range of values smaller than the high value, the memory further comprising a device for switching the resistance of at least one resistive element selected from among the resistive elements between the high and low values, the device comprising a first circuit capable of circulating a first current through at least one first reference resistive component or of applying a first voltage across the first reference resistive component, a second circuit capable, during a switching operations, of circulating a second current proportional to the first current through the selected resistive element or of applying a second voltage proportional to the first voltage across the selected resistive element, a third circuit capable of detecting the switching of the resistance of the selected resistive element from the comparison of a third voltage which depends on the voltage across the first reference resistive component and of a second voltage which depends on the voltage across the selected resistive element or from the comparison of a third current which depends on the first current with a fourth current which depends on the second current, and a fourth circuit capable of interrupting the second current flowing through the selected resistive element on detection of the switching, the memory further comprising, for each row, at least one first conductive track connected to each resistive element in the row and, for each column, a second conductive track connected to each resistive element in the column, the memory further comprising at least one third conductive track connected to the first reference resistive component, each first conductive track being connected to the third conductive track.