New NAND flash paves the way for super cheap, extra large SSDs

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SK hynix has developed new 4D NAND flash with an enormous 238 layers, paving the way in which for fast and capacious new SSDs, the corporate has introduced.

Unveiled on stage at Flash Reminiscence Summit in Santa Clara, the brand new reminiscence chip is described because the “world’s first 238-layer 512Gb TLC 4D NAND” and is predicted to enter mass manufacturing within the first half of 2023. 

In contrast with the earlier 176-layer mannequin, the brand new NAND is claimed to supply 50% sooner information switch speeds (at 2.4Gb/sec), 21% better vitality effectivity for information reads and a 34% improve in general productiveness.

The arrival of the 238-layer product will see SK hynix snatch the document for world’s highest NAND stack from rival producer Micron, whose newest mannequin encompasses a measly 232 layers.

238-layer 4D NAND flash

NAND flash is a kind of non-volatile reminiscence that options in all types of storage units, from memory cards, USB sticks and portable drives to SSDs for servers and consumer units.

The overall development in NAND flash growth is in direction of a discount in value per capability and a rise storage density, successfully eliminating the final remaining use instances for conventional hard disk drives. The arrival of the 238-layer product from SK hynix marks one other step on this journey.

Not like different NAND merchandise available on the market, the most recent chips within the firm’s vary function a “4D” structure, whereby the logic circuits are positioned beneath the storage cells. SK hynix says this design permits for a “smaller cell space per unit, resulting in greater manufacturing effectivity”.

“SK hynix secured world top-tier competitiveness in perspective of value, efficiency and high quality by introducing the 238-layer product primarily based on its 4D NAND applied sciences,” mentioned Jungdal Choi, Head of NAND Improvement at SK hynix. 

Maybe opposite to expectation, the brand new 238-layer NAND will first make its method to consumer units, which can give content material creators and PC avid gamers trigger for pleasure. Solely later will the brand new chip come to smartphones and high-capacity servers.

SK hynix additionally revealed it’s growing a 1Tb 238-layer product, which can double the storage density of the most recent chip when it arrives subsequent yr. “We are going to proceed improvements to search out breakthroughs in technological challenges,” added Choi.

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