A source close to the situation stated the current yield for 64-layer QLC is hovering right around 48%. Less than half of the die manufactured are reliable enough to use in an SSD. In contrast, current 64-layer TLC from IMFT has a yield right around 90% as of today. Usually companies work to increase yields over time but the push to finish more profitable 96-layer flash may divert engineering resources away from 64-layer QLC.
Intel and Micron struggling with poor QLC NAND flash memory yields
Posted on Thursday, Aug 30 2018 @ 10:24 CEST by Thomas De Maesschalck