Patent ID: 11934666
Assignee: MICRON TECHNOLOGY, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 12:
13. A method of operating a memory device, the method comprising:
determining a target profile including targeted distributions program-verify levels for corresponding logic values stored in memory cells within a memory array,
wherein the target profile includes edge targets and middle targets,
wherein (1) the edge targets are instances of the targeted distributions for logic values represented using highest and lowest voltage levels and (2) the middle targets are instances of the distribution targets that are between the edge targets;

determining a feedback measure based on reading data from the memory cells,
wherein the feedback measure represents a separation between adjacent distributions of program-verify levels,
wherein the feedback measure corresponds to read errors;

dynamically adjusting the target profile by relocating the target distributions according to the feedback measure,
wherein dynamically adjusting the target profile includes updating one or more middle targets according to the feedback measure;

determining the feedback measure corresponding to a difference in the read errors resulting from different read-level voltages.