Samsung crams 100 layers and more speed into its latest SSD

Samsung has started mass production on solid state drives (SDDs) that feature the company's sixth-generation 256GB three-bit vertical NAND memory. This means the drives come with an industry first 100 layers of NAND cells, a writing speed of 450 micr...

Samsung unveils first SSDs with 3D V-NAND memory, but only for enterprise

Samsung launches first SSD with 3D VNAND memory, but only for enterprise

Well, that was quick. Samsung said it was producing the world's first 3D vertical NAND memory just a week ago, and it has already started building the first SSDs based on that memory. Unfortunately, they're not meant for the enthusiast crowd: the new 480GB and 960GB drives are instead designed for enterprise-class servers, where V-NAND's blend of high capacity and reliability makes the most sense. Don't be too forlorn, however. Samsung promises that the new memory will eventually reach PC-oriented SSDs, which could bring spacious flash storage to a much wider audience.

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Source: Samsung

Samsung ships first 3D vertical NAND flash, defies memory scaling limits

Samsung ships first 3D vertical NAND flash memory

The main challenge in producing higher-capacity flash storage is one of scale -- as density goes up, so does cell interference and the chances of a breakdown. Samsung may have overcome that barrier (if temporarily) by mass-producing the first 3D vertical NAND memory, or V-NAND. Instead of putting memory cells on a conventional 2D plane, the company reworked its long-serving Charge Trap Flash technology to create a 3D cell structure with more breathing room. The result is flash that improves both reliability and speed at higher densities; Samsung claims that the new technology is 2-10X more reliable than its ancestors, and twice as quick at writing data. The initial V-NAND chip offers a 128-gigabit (16GB) capacity that we've seen before, but its underlying technique should scale quickly when a chip can include as many as 24 stacked cell layers. Although Samsung hasn't named the first devices with V-NAND inside, we won't be surprised if our next phone or SSD is particularly spacious.

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Source: Samsung