Samsung boosts flash density with 3-bit, 32-layer design

The new technology should help to drive down the cost per bit of NAND

Samsung Semiconductor continues to pack data more into solid-state storage, announcing Tuesday a new generation of its V-NAND technology that should help bring down the cost and power consumption of flash later this year.

The first 3-bit version of its 3D V-NAND (Vertical NAND) flash, it fits one more bit of data on each layer of the stacked technology. Bob Brennan, vice president of Samsung Semiconductor's memory solutions lab, expects an SSD (solid-state drive) using the new technology to ship by the end of this year.

V-NAND stacks flash vertically, achieving greater density without having to pack more components onto a single chip layer. Boosting density on flat, so-called planar chips is getting harder and more expensive because cells that are closer together have higher error rates. Without V-NAND, price declines on flash would slow down, Brennan said. This latest development should help to keep them going.

Samsung announced V-NAND with 24 layers a year ago and introduced a version with 32 layers earlier this year. It's already shipping SSDs made with 32-layer V-NAND, the 850 Pro line, which Samsung considers so durable it provides a 10-year warranty. Both of these V-NAND releases allowed for more data than planar flash in the same size chip, lowering cost per bit and opening up a new frontier to make storage more dense.

But those versions held just two bits of data per layer. Samsung has now fit three bits on each layer, achieving the equivalent of a 48-layer design, Brennan said. Samsung thinks it can keep adding layers, too, up to 90 or 100 at some point in the future. But adding more bits per layer is another way to increase density, one that's already familiar to flash vendors because it's been done in planar flash for years.

SSDs built with 3-bit V-NAND are likely to be used in a tier of flash storage intended for high capacity more than ultimate performance, Brennan said. Facebook has expressed interest in the cheap, 3-bit version of planar flash, called TLC (triple-level cell), for storing rarely accessed content such as photos.

Stephen Lawson covers mobile, storage and networking technologies for The IDG News Service. Follow Stephen on Twitter at @sdlawsonmedia. Stephen's e-mail address is stephen_lawson@idg.com

Join the newsletter!

Error: Please check your email address.
Rocket to Success - Your 10 Tips for Smarter ERP System Selection

Tags storageSamsung SemiconductorComponents

Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Stephen Lawson

IDG News Service
Show Comments

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Ben Ramsden

Sharp PN-40TC1 Huddle Board

Brainstorming, innovation, problem solving, and negotiation have all become much more productive and valuable if people can easily collaborate in real time with minimal friction.

Sarah Ieroianni

Brother QL-820NWB Professional Label Printer

The print quality also does not disappoint, it’s clear, bold, doesn’t smudge and the text is perfectly sized.

Ratchada Dunn

Sharp PN-40TC1 Huddle Board

The Huddle Board’s built in program; Sharp Touch Viewing software allows us to easily manipulate and edit our documents (jpegs and PDFs) all at the same time on the dashboard.

George Khoury

Sharp PN-40TC1 Huddle Board

The biggest perks for me would be that it comes with easy to use and comprehensive programs that make the collaboration process a whole lot more intuitive and organic

David Coyle

Brother PocketJet PJ-773 A4 Portable Thermal Printer

I rate the printer as a 5 out of 5 stars as it has been able to fit seamlessly into my busy and mobile lifestyle.

Kurt Hegetschweiler

Brother PocketJet PJ-773 A4 Portable Thermal Printer

It’s perfect for mobile workers. Just take it out — it’s small enough to sit anywhere — turn it on, load a sheet of paper, and start printing.

Featured Content

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?