Saturday, April 26, 2014

By V-NAND Samsung is set for more advanced products including terabit NAND flash memory

Recently this picture below was published on LinkeIn (I seen it posted by Yangyin Chen
陈杨胤, researcher at imec) and other social media and has been shared a great deal. Naturally there has been comments and questions if it will go on on heading for 128 terabit NAND flash memory 2025 or so.
To get a glimpse into how this scaling has been possible I checked out the Samsung information on V-NAND as they call their 3D-NAND technology. According to the information available on Samsungs web they have set the foundation for more advanced products including 512 gigabit (Gb) and one terabit (Tb) NAND flash memory, which we expect to develop within the next few years. structure. So single digit terabit should not be a problem. What about 128 TB? I don´t know, but I assume we will need that integrated into a Google lens to record our exiting lives in 3D-HD feeding real time in to Facebook accounts pretty soon :-)  
Samsung’s new V-NAND offers a 128 gigabit (Gb) density in a single chip, utilizing the company’s proprietary vertical cell structure based on 3D Charge Trap Flash (CTF) technology and vertical interconnect process technology to link the 3D cell array. By applying both of these technologies, Samsung’s 3D V-NAND is able to provide over twice the scaling of 20nm-class planar NAND flash.By making this CTF layer three-dimensional, the reliability and speed of the NAND memory have improved sharply. The new 3D V-NAND shows not only an increase of a minimum of 2X to a maximum 10X higher reliability, but also twice the write performance over conventional 10nm-class floating gate NAND flash memory. [Far East Gizmos]

Picture showing 3D stacking up to 24 layers (from Iter news
   "An industry first, it represents a breakthrough in overcoming the density limit currently facing the planar NAND architecture and floating gates used in conventional flash memory, as well as yielding speed and endurance" 

Check out the promo video from Samsungs YouTube channel below.

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