Tuesday, October 16, 2018
Submit your own News for
inclusion in our Site.
Click here...
Breaking News
New Cyber-shot HX99 Is Possibly the World's Smallest Travel High Zoom Camera
New Palm Phone Is About the Size of a Credit Card
HP Arms ZBooks with Intel Core i9 Processors
Dell Expands UltraSharp Monitor Family With New UltraSharp 49-inch Dual QHD Monitor
ARM and Intel to Secure Internet of Things
Adobe Announces New Creative Cloud at MAX 2018
8K TV Shipments to Reach More Than 400,000 Units in 2019, IHS Markit Says
Sharp Releases New AQUOS 8K LCD TVs With 8K Satellite Tuner
Active Discussions
Which of these DVD media are the best, most durable?
How to back up a PS2 DL game
Copy a protected DVD?
roxio issues with xp pro
Help make DVDInfoPro better with dvdinfomantis!!!
menu making
Optiarc AD-7260S review
cdrw trouble
 Home > News > General Computing > A Close...
Last 7 Days News : SU MO TU WE TH FR SA All News

Monday, November 28, 2016
A Closer Look At SK Hynix's 3D NAND

TechInsights has explored SK Hynix's U-shaped NAND cell architecture and compares it with the 3D NAND approaches followded by Micron, Toshiba, Intel and Samsung.

SK Hynix has been developing several types of 3D NAND cell structures, including DC-SF (three-dimensional Dual Control-gate with Surrounding Floating-gate, 2010) and SMArT (Stacked Memory Array Transistor with ONO layer, 2012).

TechInsights took a look at SK Hynix's 3D version 2 with H28U74301AMR UFS package markings, found in the LG V20 smartphone. They found that four NAND die are in a 64 GB package, which means each 3D NAND die has 128 Gb, likely using multi-level cell (MLC) rather than triple-level cell (TLC). Currently, other major 3D NAND players - such as Samsung, Toshiba, SanDisk, Micron, and Intel - have their 3D NAND products with TLC.

The chip's die area is measured at 88.36 mm2, which means that the memory density is 1.45 Gb/mm2 on a die with 67.5% memory array efficiency. The memory density on the die is quite low compared to other players' 3D NAND TLC products, such as the Micron 32L 3D NAND (2.28 Gb/mm2), Toshiba/SanDisk 48L 3D NAND (2.43 Gb/mm2), and Samsung 48L V-NAND (2.57 Gb/mm2) because the SK Hynix H27DGS8 die used for UFS products might be an MLC die instead of a TLC die.

Referring to memory density on a plane (or a tile for Micron's 3D NAND die), SK Hynix 3D NAND (ver. 2) die has 2.15 Gb/mm2, which is still lower than Micron?s 32L (2.63 Gb/mm2), Toshiba/SanDisk's 48L (3.45 Gb/mm2), and Samsung?s 48L (3.56 Gb/mm2).

TechInsights also compared the memory density and memory array efficiency from major 3D NAND manufacturers. The memory array efficiency (84.9%) of Micron/Intel?s 3D NAND is higher than others because of their array on CMOS circuits in which the CMOS decoders and sense-amps are sitting under the 3D FG-NAND memory array. The memory efficiency of SK Hynix 3D NAND (67.5%) is a little lower than Samsung?s (70.0%) and Toshiba/SanDisk?s (69.9%).

SD Association Releases New App performance Class And Card Symbol        All News        Chinese Companies Eye Investments In OLED Panels
AT&T Unveils DirecTV Now Streaming Service     General Computing News      Deutsche Telekom Fixed Network Outage

Get RSS feed Easy Print E-Mail this Message

Related News
Western Digital Releases First 96-Layer 3D NAND UFS 2.1 Embedded Flash Drive for Smartphones
China's YMTC to Talk About 3D NAND Chip Progress
SK Hynix Starts Sampling Enterprise SSDs with its 72-Layer 512Gb 3D NAND Flash
Tsinghua Unigroup May License 3D NAND flash Technology From Intel
Toshiba to Prepare New Semiconductor Fabrication Facility
Toshiba Unveils UFS Devices Based on 64-Layer, 3D Flash Memory
Toshiba Develops First 3D Flash Memory with TSV Technology
Toshiba Announces 96-Layer 3D Flash Memory and 64-Layer QLC 3D Flash Memory
3D-NAND to Become Mainstream This Year
SK Hynix Introduces First 72-Layer 3D NAND Flash
Western Digital Releases New iNAND 7350 Storage Solution Built on 3D NAND
Toshiba Starts Sampling 64-Layer, 512-gigabit 3D Flash Memory

Most Popular News
Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2018 - All rights reserved -
Privacy policy - Contact Us .