Back to results
US 2013/0097368 A1Published application
AD HOC Flash Memory Reference Cells
AssigneeSanDisk Technologies LLC
InventorsMark Murin, Eran Sharon
Life of this patent
Estimating the term…
Abstract
A method for managing a flash memory that includes a plurality of primary cells and a plurality of spare cells includes interrogating the flash memory to determine which spare cells have been used to replace respective primary cells and using at least a portion of a remainder of the spare cells as reference cells.
Claims17
A method of managing a flash memory that includes a plurality of primary cells and a plurality of spare cells, the method comprising:
- (a) interrogating the flash memory to determine which spare cells have been used to replace respective primary cells;
- and
- (b) using, as reference cells, at least a portion of a remainder of the spare cells.
A flash memory device comprising:
- (a) a flash memory including a plurality of primary cells and a plurality of spare cells;
- and
- (b) a controller operative:
- (i) to interrogate the flash memory to determine which spare cells have been used to replace respective primary cells, and
- (ii) to use, as reference cells, at least a portion of a remainder of the spare cells.
2 more elements
A system, comprising:
- (a) a flash memory including a plurality of primary cells and a plurality of spare cells;
- and
- (b) a host, of the flash memory, including:
- (i) a memory for storing code for managing the flash memory by steps including:
- (A) interrogating the flash memory to determine which spare cells have been used to replace respective primary cells, and
- (B) using, as reference cells, at least a portion of a remainder of the spare cells, and
- (ii) a processor for executing the code.
4 more elements
Dependencies are inferred from the claim text.