Patent ID: 11972787
Assignee: SANDISK TECHNOLOGIES, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 4:
5. The apparatus of claim 1, wherein the one or more control circuits are configured to:
i) select a selector refresh group for refresh of the threshold switching selectors of the respective programmable resistance memory cells in the selector refresh group, wherein the selector refresh group comprises a plurality of programmable resistance memory cells in the one or more cross-point arrays;
ii) reset threshold voltages of the threshold switching selectors of the respective programmable resistance memory cells in the selected selector refresh group without refreshing data stored in the programmable resistance memory cells;
iii) repeat said i) and said ii) for other selector refresh groups in the one or more cross-point arrays; and
iv) repeat said i), said ii) and said iii) at regular intervals to periodically refresh threshold switching selectors in each selector refresh group.