Toshiba’s world-wide QLC3D flash memory 64-layer stack single-chip 1.5TB
SLC (single bit), MLC (double bit), TLC (three bits), the fourth form of NAND flash memory QLC finally officially released. Toshiba today unveiled the world's first QLC flash with 4 bits per unit design, and the costly ultra-high-capacity SSD will no longer be a dream.
From TLC to QLC, although only one bit is added to the same electronic unit, the technical challenge is so great that double precision is required to ensure high stability, longevity and performance, but once the technology is overcome Obstacles, with the substantial increase in capacity, unit costs will continue to decline rapidly.
Toshiba's new BiCS flash memory is still using 3D stereo packaging, stacking up to 64 layers, each Die's capacity has been done 768Gb (96GB), a new record.If you use 16Die package, then the capacity of each flash memory chip can reach 1.5TB, the same is the world record.And if a SSD with eight such a new product, the total capacity is amazing 12TB!Toshiba has already started shipping SSD prototypes and related controls based on QLC flash at the beginning of this month for evaluation and development testing.
Toshiba's new BiCS flash memory is still using 3D stereo packaging, stacking up to 64 layers, each Die's capacity has been done 768Gb (96GB), a new record.If you use 16Die package, then the capacity of each flash memory chip can reach 1.5TB, the same is the world record.And if a SSD with eight such a new product, the total capacity is amazing 12TB!Toshiba has already started shipping SSD prototypes and related controls based on QLC flash at the beginning of this month for evaluation and development testing.
