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

Claim 12:
13. A method for refreshing magnetoresistive memory cells (MRAM cells) in a memory structure having one or more cross-point arrays, each MRAM cell having a magnetoresistive element in series with a threshold switching selector having a threshold voltage at which the threshold switching selector turns on, the method comprising:
refreshing the threshold switching selectors in respective MRAM cells at a first rate, including applying first signals to a particular MRAM cell to turn on the threshold switching selector in order to reset the threshold voltage of the threshold switching selector; and
refreshing the magnetoresistive elements in the respective MRAM cells at a second rate that is lower than the first rate, including applying second signals to the particular MRAM cell to refresh data stored in the magnetoresistive element of the particular MRAM cell.