Fast soft data by detecting leakage current and sensing time

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United States of America Patent

PATENT NO 9881678
SERIAL NO

15411040

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Abstract

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Systems and methods for low latency acquisition of soft data from a memory cell based on a sensing time and/or a leakage current are described. In one embodiment, the systems and methods may include applying a first read voltage to a word line of a page of memory cells selected by a processor of a flash memory device for a read operation, applying a pass voltage to word lines associated with one or more different pages of memory cells of the memory block, upon applying the first read voltage sensing whether a bit line of a memory cell in the selected page conducts, measuring a side effect associated with sensing whether the bit line of the memory cell in the selected page conducts, and assigning a LLR value to the memory cell as a soft LDPC input based at least in part on the measured side effect.

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Patent Owner(s)

Patent OwnerAddress
SEAGATE TECHNOLOGY LLCCUPERTINO CA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hwang, Namoh Seoul, KR 2 5
Khoueir, Antoine Edina, US 76 1196
Kim, Young Pil Eden Prairie, US 48 672

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