Samsung Researchers Inch Closer to Commercial Graphene Transistors
May 18, 2012 3:22 PM
comment(s) - last by
New transistor design uses metal-semiconductor junction to preserve nanolayer's high electron mobility
Samsung Electronics Comp., Ltd. (
), a South Korean firm perhaps best known for
, is among the companies racing to create transistors from graphene. Graphene is a very special type of carbon, in which carbon atoms are sp2-bonded in repeating hexagonal units forming a one-atom thick sheet.
Graphene is highly conductive, which could lead to
just a few atoms wide
. But to create reliable, commercializable designs, researchers must find a way to get graphene to do a better job at shutting off current (as the transistor key function is to act as a switchable gate to the flow of electricity). "Plain" graphene can not shut off current due to its semi-metallic nature.
Past-research has largely focused on making graphene into a semiconductor. But that approach creates new issues, cutting the electron mobility from 200 times that of silicon, to much less than silicon -- a performance killer.
Companies are racing to implement graphene transistors. [Image Source: i09]
The Samsung design instead opts to use a special graphene-silicon Schottky barrier to halt the flow of electricity. A Schottky barrier allows for a metal-semiconductor (or semi-metal-semiconductor) junction. By keeping the graphene semi-metallic, the strong electron mobility is preserved.
Samsung calls its special graphene Shottky transistors "barristors" (a blend of "barrier" and "transistor"). It owns 9 patents on the technology.
Samsung calls its special graphen transistor a "barristor". [Image Source: Samsung]
On the recent refinements,
[abstract] in the prestigious
journal, researchers at
Samsung's Advanced Institute of Technology
demoed basic processing. The company writes:
In addition, to expand the research into the possibility of logic device applications, the most basic logic gate (inverter) and logic circuits (half-adder) were fabricated, and basic operation (adding) was demonstrated.
Now with the fundamentals in place Samsung must come up with the processes to mass-produce its barristors on the nanometer scale. If it can do that, it could offer a unique advantage to its smartphones and to
business partners like Apple
, Inc. (
) that rely on its chips.
Of course, other companies like Intel Corp. (
) and International Business Machines, Inc. (
) are also hotly pursuing graphene designs, so it's unlikely Samsung will be alone when this technology inally reaches the commercial stage.
This article is over a month old, voting and posting comments is disabled
RE: Apple have a patent on that.
5/20/2012 5:26:52 PM
Aesthetics clearly do matter. I'd argue that copying Apple is one of the reasons why Samsung has been doing so well. HTC, Nokia, and Motorola have done with their own very good designs, but they also haven't been selling well. Meanwhile Samsung has done this and succeeded:
Samsung recently announced that they'll be putting up retails stores. The design: glass cubes.
Tell Samsung that aesthetics don't matter, they obviously matter a lot to them, their strategy revolves around shamelessly carbon copying what they like from other companies (this time its Apple). Why create their own product designs when they can just copy the best? It is clearly a very profitable strategy.
"Game reviewers fought each other to write the most glowing coverage possible for the powerhouse Sony, MS systems. Reviewers flipped coins to see who would review the Nintendo Wii. The losers got stuck with the job." -- Andy Marken
Samsung's Galaxy S III Brings 4.8" HD Super AMOLED Display, Quad-Core Exynos
May 3, 2012, 2:55 PM
Samsung Now Making Apple's Smartphone/Tablet Chips in Texas
December 16, 2011, 1:01 PM
Sony Looking to Buy Ericsson Share of Mobile Phone Partnership
October 7, 2011, 12:28 PM
An Incredible Discovery: Graphene Transistors Self-Cool
April 4, 2011, 3:48 PM
Two U.S. Teams Deliver Smallest Transistor, Densest Storage Ever
February 23, 2009, 8:45 AM
Quick Note: QNAP Announces $129 QGenie 7-in-1 NAS for Mobile Users
July 14, 2014, 9:32 AM
Apple Launches 21.5” iMac with 1.4GHz Core i5 Processor Priced at $1,099
June 18, 2014, 8:07 AM
Lowe's "Holoroom" Brings Holodeck, Home Improvement Dreams Closer to Reality
June 13, 2014, 9:06 AM
Intel to Broaden Market for Fanless Tablets, Ultrabooks with 14nm Intel Core M
June 3, 2014, 10:42 AM
ZOTAC Announces Four New Silent ZBOX Mini-PCs
June 2, 2014, 9:21 AM
ZOTAC Announces Funky ZBOX Sphere OI520 Series
May 22, 2014, 8:20 PM
Most Popular Articles
Microsoft Kills Entertainment Unit, May Shelve Flagship Lumia "McLaren"
July 18, 2014, 7:40 PM
JJ Abrams Unveils X-Wing Starfighter for New "Star Wars" Movie
July 21, 2014, 12:24 PM
Ford Details ’15 F-150’s 325hp, 2.7L EcoBoost V6; Demonstrates 732-lb Weight Loss
July 22, 2014, 6:55 PM
Comcast Memo: Harassing Customers During Retention Calls Actually IS Our Policy
July 22, 2014, 5:19 PM
Motorola Moto G Successor Reportedly Uncovered, Moto X Discounted by up to $75
July 21, 2014, 1:11 PM
Latest Blog Posts
Space Terrorism is a Looming Threat For the United States
Apr 23, 2014, 7:47 PM
Facebook Aims to Provide Internet to "Every Person in the World" with Drones, Satellites
Apr 1, 2014, 10:20 AM
Retail Mobile Sites Experience Outages in Light of Simplexity's Bankruptcy
Mar 14, 2014, 8:48 AM
Tesla vs. BMW: Who Has the Safer EV?
Feb 1, 2014, 2:56 PM
Justice Leaks Details of Next HTC One Two Flagship Phone
Dec 5, 2013, 4:04 PM
More Blog Posts
Copyright 2014 DailyTech LLC. -
Terms, Conditions & Privacy Information