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US 9,001,575 B2Granted
Encoding program bits to decouple adjacent wordlines in a memory device
AssigneeMicron Technology, Inc.
InventorFerdinando Bedeschi
Life of this patent
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Abstract
Subject matter disclosed herein relates to memory operations regarding encoding program bits to be programmed into a memory array.
Claims17
A method comprising:
- partitioning program bits to be written into a memory cell array comprising phase change memory (PCM) cells;
- and
- transforming said partitioned program bits to programmed states in said memory cell array so as to reduce a number of occurrences of two or more adjacent memory cells on particular bit lines of said memory cell array having zero-bit states and to increase a number of occurrences of two or more adjacent memory cells on said particular bit lines having adjacent zero-bit and one-bit states.
A non-volatile memory device comprising:
- a controller to:
- encode program bits to be written to a memory cell array comprising phase change memory (PCM) cells;
- and
- place said encoded program bits onto two adjacent wordlines of said memory cell array, wherein said encoded program bits are encoded to reduce a number of occurrences of adjacent zero bits on said two adjacent wordlines of memory cells and to increase a number of occurrences of a zero-bit being adjacent to a one-bit on said two adjacent wordlines.
1 more element
A system comprising:
- a processor to host one or more applications and to initiate a write operation to store program bits in a memory cell array comprising phase change memory (PCM) cells;
- and
- a controller to:
- encode program bits to be written into said memory cell array;
- and
- place said encoded program bits onto two or more adjacent wordlines of said memory cell array, wherein said encoded program bits are encoded to reduce a number of occurrences of adjacent zero bits on said adjacent wordlines of memory cells and to increase a number of occurrences of adjacent zero and one bits on said two adjacent wordlines.
3 more elements
Dependencies are inferred from the claim text.