SK Hynix starts sending samples of 1Tb (terabit) QLC (Quadruple Level Cell) flash memory-- a chip allowing SSD makers to build even higher capacity drives by taking advantage of the higher bit density.
According to the company, the chips feature the application of QLC technology to a 96-layer CTF (Charge Trap Flash) based on 4D NAND flash. QLC stores 4 bits of data in one NAND cell, allowing higher density compared to TLC (Triple Level Cell) with 3 bits per cell. Furthermore, SK Hynix says the product has reduced the area to less than 90% of of existing 3D-based QLC products.
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