Abstract
Technical innovations, particularly in NAND flash memory design are key
enablers of multi-level cell NAND flash memories, especially 3-bit per cell
and 4-bit per cell technologies. This report identifies important intellectual
property related to sensing architectures, source voltage noise compensation,
programming algorithms, disturbs reduction, temperature compensation, high
voltage switch, coding schemes and error correction codes from Hynix, Micron,
Samsung, SanDisk, STMicroelectronics and Toshiba.
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