HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Blogs
Blog

Fabrication Technique Gives Graphene the Flexibility for Future Transistors

NO RATINGS
< Previous Page 2 / 2
View Comments: Threaded|Newest First|Oldest First
naperlou
User Rank
Blogger
two different things
naperlou   12/7/2012 10:29:31 AM
NO RATINGS
The issue of shrinking transistor size and of stretchability are really two different things. 

Over the last many years people have been looking for the replacement for silicon.  It is interesting that this has not happened yet.  Chip makers continually improve silicon manufactur and density.  Other materials generally prove to be of a much lower yield or density or both.  Gallium Arsenide was one of those.  It could operate at higher speeds, but yield and density were poor.

The solution to reaching limits on clock speed has been architectural.  Thus we have multicore machines. 

It always seems to be a race between silicon getting better and something else.  As you point out in the article, the first theoretical conjecture was in 1947.  These things can take a long time before they go from theory to industrial use.

Ann R. Thryft
User Rank
Blogger
Re: two different things
Ann R. Thryft   12/10/2012 12:49:13 PM
NO RATINGS
Lou, I've seen the same dialectic again and again between supposed silicon limits about to be reached at X.X process generation and the architectural fixes for same. But one of the main reasons silicon hasn't been replaced yet isn't technical: it's economic, And I don't mean the fact that the material is relatively cheap. The situation is analogous to other potential replacements, like electric and/or hybrid cars, or solar energy, or bioplastics and biofuels: the existing infrastructure is huge, entrenched, pervasive and profitable. Replacing it will take a lot of conscious, united effort, even if the replacing technology works just as well.

Ann R. Thryft
User Rank
Blogger
A totally cool step forward
Ann R. Thryft   12/7/2012 3:07:49 PM
NO RATINGS
Cabe, thanks for covering this news from Georgia Tech. Graphene, in various forms including CNTs, has been considered as one possible replacement for silicon for several years. This is a totally cool step forward.

Cabe Atwell
User Rank
Blogger
Re: A totally cool step forward
Cabe Atwell   12/7/2012 5:59:57 PM
NO RATINGS
Graphene is the future. Forcing a band gap in the material was the crucial step.

However, now that it is poised to be used mainstream, how toxic is the manufacturing process of graphene? I read an article here at DN on nano-tube creation, and its bad. Graphene can't be far behind it.

 

C

Ann R. Thryft
User Rank
Blogger
Re: A totally cool step forward
Ann R. Thryft   1/3/2013 8:13:36 PM
NO RATINGS
Cabe, I wrote that article on CNT toxicity. CNTs are made of graphene, but the toxicity potential is far, far worse with nanomaterials because of their size.

Partner Zone
More Blogs
You know you're an engineer if you chuckle whenever anyone says "centrifugal force," or you find yourself at the airport studying the baggage handling equipment.
Are you being paid enough? Do you want a better job? According to a recent survey Manpower released just before Engineers Week, employers and engineers don't see eye-to-eye about the state of US engineers' skills and experience.
On Feb. 6, UMass Amherst announced that it would no longer be accepting Iranian graduate students in STEM fields. It has since abandoned that policy.
Two issues have been the bane of the plastics industry for as long as one can remember: The ban on plastic grocery bags and whether the use of bisphenol A (BPA) in plastics such as polycarbonate and PVC is harmful to humans.
One expects to see outlandish apparel at major global fashion events, but New York Fashion Week may have outdone itself, and set a new bar for Paris and Milan, when it put an Ebola jumpsuit in the spotlight.
Design News Webinar Series
2/25/2015 11:00 a.m. California / 2:00 p.m. New York
12/11/2014 8:00 a.m. California / 11:00 a.m. New York
12/10/2014 8:00 a.m. California / 11:00 a.m. New York
11/19/2014 11:00 a.m. California / 2:00 p.m. New York
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Mar 9 - 13, Implementing Motor Control Designs with MCUs and FPGAs: An Introduction and Update
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  67


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2015 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service