Method and system for compensating for floating gate-to-floating gate (fg-fg) interference in flash memory cell read operations

摘要

Embodiments of the present disclosure provide methods, devices, modules, and systems for compensating for floating gate to floating gate (fg-fg) interference in flash memory cell read operations. Compensating for fg-fg interference effects can reduce or prevent read errors. Embodiments of the present disclosure can compensate for fg-fg interference by determining the programmed state of aggressor (or influencing) memory cells that are programmed after a target memory cell. If the aggressor memory cell is in the erased state of Level 0 or is in a programmed state of Level 2-15, the target memory cell is identified as undisturbed. If the aggressor memory cell is programmed to a Level 1 (instead of Level 0 or Levels 2-15), the target memory cell is identified as disturbed. If the target memory cell is disturbed, sensing parameters may be adjusted to compensate for the disruption.