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Technology Stocks : WDC, NAND, NVM, enterprise storage systems, etc. -- Ignore unavailable to you. Want to Upgrade?

To: SiliconAlley who wrote (3832)	6/12/2018 3:36:08 PM
From: storage_savant	Read Replies (1) \| Respond to of 4828

Whether planar or 3D, the individual cells are similar, the main difference being that in 3D, cell size can be relaxed for better performance.. WDC (formerly SanDiak/M-Systems) do not have QLC, they have X4. X4 = X3 + secret saurce (which involves geographic placement of individual bits within a cell). X4 is clearly superior to QLC, which has less endurance than MLC. X4 endurance is identical to MLC. X4 has quietly been in production since 2009, in the majority of MLC products. "geographic placement of bits within a cell". What does this mean? You keep repeating it. Are you claiming that the technology allows the cell to store 3 bits of information and then somehow the 4th bit is magically resolved? Sounds a bit like turning water into wine... If this is real you should be able to point me to a paper and/or patent that has been published on this technique.