LOWER VREAD FOR ERASED WORD LINES IN POST-WRITE DUMMY READS

A memory device includes a memory block including a plurality of memory cells and control circuitry configured to perform a dummy read operation to transition memory cells of the memory block from a first read condition to a second read condition. To perform the dummy read operation, the control cir...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: He, Yanwei, Chin, Henry, Murai, Shota
Format: Patent
Sprache:eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A memory device includes a memory block including a plurality of memory cells and control circuitry configured to perform a dummy read operation to transition memory cells of the memory block from a first read condition to a second read condition. To perform the dummy read operation, the control circuitry is configured to, subsequent to performing a programming operation on a selected word line and prior to performing a programming operation on a next word line, supply a first voltage pulse to bias the selected word line and previously programmed word lines in the memory block, and, while supplying the first voltage pulse, supply a second voltage pulse to bias unprogrammed word lines in the memory block including the next word line. The second voltage pulse has a lower magnitude than the first voltage pulse.