Design Con 2015
Breaking News
Comments
Newest First | Oldest First | Threaded View
krisi
User Rank
CEO
re: IBM, Hynix, Samsung roll STT RAM
krisi   12/11/2010 3:51:50 PM
NO RATINGS
Agreed, nice comments from @uhrmannt...is there any place to see cross section of devices in both technologies? Kris

Sanjib.A
User Rank
CEO
re: IBM, Hynix, Samsung roll STT RAM
Sanjib.A   12/11/2010 2:11:29 PM
NO RATINGS
@uhrmannt, thanks a lot for explaining the differences between the two technologies...it helps me a lot! How are the Everspin devices performing in the field? Any idea how reliable they are and any technical advantage the offer compared to traditional semiconductor technology?

uhrmannt
User Rank
Rookie
re: IBM, Hynix, Samsung roll STT RAM
uhrmannt   12/9/2010 11:02:01 AM
NO RATINGS
Indeed Everspin is on the market with MRAM already for a couple of years. However, their technology is highly different to the STT technology, despite relying on the same tunneling magneto resistance (TMR) effect. Everspin uses TMR junctions with a size being in the size of couple of hundred nanometers. These mainly elliptical junctions face that problem that their remagnetization/switching field is increasing largely when shrinked down (where the socalled paramagnetic state marks the fundamental limit). This issue of a increasing switching field in combination with their matrix grid switching (a current pulse is applied to a wire grid, where the wires cross the oersted field superposes to a value high enough to switch the cell underneath) introduce the scaling down border of this technology. For SST the switching is by usage of the spin torque effect. In this case the current density of spin polarized current transversing the tunnel junctions has to be huge in order to reverse or change the magentic state and therefore store the information. Mostly the material issues as well as reliability are stating the issues of this new technology.

resistion
User Rank
CEO
re: IBM, Hynix, Samsung roll STT RAM
resistion   12/8/2010 5:36:16 AM
NO RATINGS
Surprised to hear of disagreement between PMA and IMA. That's going to hinder acceptance a bit.

Sanjib.A
User Rank
CEO
re: IBM, Hynix, Samsung roll STT RAM
Sanjib.A   12/8/2010 3:27:30 AM
NO RATINGS
Everspin (spin-off of Freescale Semiconductor Inc) already has MRAM chips in their product portfolio for quite some time. The density is upto 16Mb for the 16-bit devices. I don't understand the technologies well, but my guess is that the STT-MRAM is a new technology targeted to scale it down, increase its density enough for it to be capable of replacing the DRAM. If I understand correctly, I feel this manufacturers are desperate to overcome the last few hurdles and lunch these products commercially in not more than 2 years. Any different opinion?

krisi
User Rank
CEO
re: IBM, Hynix, Samsung roll STT RAM
krisi   12/7/2010 9:59:42 PM
NO RATINGS
I wonder how long will it take for spin based devices to be used in real products...this will mark a major breakthrough in EE: instead of currents, voltages or charges we will be relying on something quite esoteric as a spin of electron...anyone taking bets how many years to production? Kris



Top Comments of the Week
Flash Poll
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Max Maxfield

Tired Old iPad 2 vs. Shiny New iPad Air 2
Max Maxfield
7 comments
I remember when the first iPad came out deep in the mists of time we used to call 2010. Actually, that's only four years ago, but it seems like a lifetime away -- I mean; can you remember ...

<b><a href=Betajet">

The Circle – The Future's Imperfect in the Present Tense
Betajet
5 comments
The Circle, a satirical, dystopian novel published in 2013 by San Francisco-based writer Dave Eggers, is about a large, very powerful technology company that combines aspects of Google, ...

Martin Rowe

Make This Engineering Museum a Reality
Martin Rowe
Post a comment
Vincent Valentine is a man on a mission. He wants to make the first house to ever have a telephone into a telephone museum. Without help, it may not happen.

Rich Quinnell

Making the Grade in Industrial Design
Rich Quinnell
16 comments
As every developer knows, there are the paper specifications for a product design, and then there are the real requirements. The paper specs are dry, bland, and rigidly numeric, making ...

Special Video Section
The LT8640 is a 42V, 5A synchronous step-down regulator ...
The LTC2000 high-speed DAC has low noise and excellent ...
How do you protect the load and ensure output continues to ...
General-purpose DACs have applications in instrumentation, ...
Linear Technology demonstrates its latest measurement ...
10:29
Demos from Maxim Integrated at Electronica 2014 show ...
Bosch CEO Stefan Finkbeiner shows off latest combo and ...
STMicroelectronics demoed this simple gesture control ...
Keysight shows you what signals lurk in real-time at 510MHz ...
TE Connectivity's clear-plastic, full-size model car shows ...
Why culture makes Linear Tech a winner.
Recently formed Architects of Modern Power consortium ...
Specially modified Corvette C7 Stingray responds to ex Indy ...
Avago’s ACPL-K30T is the first solid-state driver qualified ...
NXP launches its line of multi-gate, multifunction, ...
Doug Bailey, VP of marketing at Power Integrations, gives a ...
See how to ease software bring-up with DesignWare IP ...
DesignWare IP Prototyping Kits enable fast software ...
This video explores the LT3086, a new member of our LDO+ ...
In today’s modern electronic systems, the need for power ...