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QLC flash is expected to usher in affordable SSDs, but the technology has hit a major roadblock at Intel and manufacturing partner Micron: TweakTown claims the current yield for 64-layer QLC is “hovering right around 48%,” a depressingly stark contrast from TLC’s 90% yield. A source believes the yield may not even improve, as resources are shifted to more profitable alternatives.
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.
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.