TDK shows its first MRAM prototype, a competitor for flash memory

The memory chip technology is seen as a promising replacement for flash memory one day

A TDK MRAM chip is demonstrating alongside a flash memory chip at Ceatec Japan on October 8, 2014

A TDK MRAM chip is demonstrating alongside a flash memory chip at Ceatec Japan on October 8, 2014

Japan's TDK is showing for the first time its prototype of a new memory chip technology that is seen as a promising replacement for today's ubiquitous flash memory.

Spin-transfer torque MRAM has the advantage of being as fast at reading and writing data as short-term storage technologies like SRAM and DRAM, but as a non-volatile type of memory it can hold on to its contents for many years like flash memory.

MRAM (magnetoresistive random access memory) technology has been around for sometime, but the variant being developed by TDK is much newer. It stores data as a magnetic charge and gets its name from the spin-transfer torque effect, which harnesses the angular momentum of electrons to make magnetic field changes when writing data.

TDK has been working on STT-MRAM for several years but it has never demonstrated it in public until this week's Ceatec expo near Tokyo.

At the event, TDK is showing a prototype STT MRAM chip that is reading and writing data repeatedly alongside a NOR flash chip that is doing the same task.

On Wednesday, the MRAM unit was reading and writing data about seven times faster than the flash memory.

TDK was also displaying an 8-inch wafer of MRAM chips produced for testing purposes by Headway Technologies, a TDK-owned company in Milpitas, California. Headway doesn't have the ability to mass produce large numbers of memory chips, so TDK will have to find a chip-making partner when it is time to take the technology commercial.

There's still no estimate on when MRAM chips might make it big, but TDK said it could be 10 years until the technology is mature enough for mass production.

TDK isn't alone in trying to commercialize STT-MRAM chips.

Its chief competitor at present is Everspin Technologies, which is based in Chandler, Arizona.

Everspin has already begun shipping STT-MRAM in small quantities and it can be found in some products, including as the cache memory inside a solid-state disk drive from Buffalo Memory.

Martyn Williams covers mobile telecoms, Silicon Valley and general technology breaking news for The IDG News Service. Follow Martyn on Twitter at @martyn_williams. Martyn's e-mail address is martyn_williams@idg.com

Join the newsletter!

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

Tags storageCEATECtdk

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

Martyn Williams

IDG News Service
Show Comments

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

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.

Matthew Stivala

HP OfficeJet 250 Mobile Printer

The HP OfficeJet 250 Mobile Printer is a great device that fits perfectly into my fast paced and mobile lifestyle. My first impression of the printer itself was how incredibly compact and sleek the device was.

Featured Content

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?