METHODS AND APPARATUS FOR SOFT DATA GENERATION FOR MEMORY DEVICES USING REFERENCE CELLS

METHODS AND APPARATUS FOR SOFT DATA GENERATION FOR MEMORY DEVICES USING REFERENCE CELLS

Methods and apparatus are provided for soft data generation for memory devices using reference cells. At least one soft data value is generated in a memory device by writing a known data to one or more reference cells; reading one or more of the reference cells; obtaining a read statistic based on t...

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Bibliographische Detailangaben
Hauptverfasser: KRACHKOVSKY, VICTOR, HARATSCH, ERICH, F, YEN, JOHNSON, BURGER, HARLEY, F., JR, VITYAEV, ANDREI, IVKOVIC, MILOS, MILADINOVIC, NENAD
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
ELECTRICITY
INFORMATION STORAGE
PHYSICS
STATIC STORES
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Beschreibung
Zusammenfassung:Methods and apparatus are provided for soft data generation for memory devices using reference cells. At least one soft data value is generated in a memory device by writing a known data to one or more reference cells; reading one or more of the reference cells; obtaining a read statistic based on the read one or more reference cells; and obtaining the at least one soft data value based on the obtained read statistic. The read statistics can optionally be obtained for one or more desired locations of a memory array; or for a given pattern, PATT, in one or more aggressor cells. The read statistic can optionally comprise asymmetric statistics obtained for a plurality of possible values.