tag: carbon nanotubes

Manufacturing Bits: April 15
By Mark LaPedus - 15 Apr, 2014 - Comments: 0

Self-assembled nano-walls Using a self-assembly process, Texas A&M University and the International Institute for Carbon-Neutral Energy Research have devised a new technology called “nano-walls.” [caption id="attachment_11488" align="alignnone" width="499"] Researchers use common spray gun to create self-assembling nanoparticle films. (Source: Texas A&M).[/caption] Researcher... » read more

Manufacturing Bits: April 8
By Mark LaPedus - 08 Apr, 2014 - Comments: 0

Making cheap diamonds Graphite and diamonds are two forms of the same element--carbon. In graphite, carbon atoms are arranged in planar sheets and the material is soft. On the other hand, diamonds consist of carbon atoms that are bonded in all directions, making these structures extremely hard. [caption id="attachment_11311" align="alignleft" width="150"] This illustration shows four layers... » read more

Power/Performance Bits: March 25
By Ann Mutschler - 25 Mar, 2014 - Comments: 0

Making flexible carbon nanotube circuits more reliable and efficient Engineers would love to create flexible electronic devices, such as e-readers that could be folded to fit into a pocket with one such approach involving designing circuits based on electronic fibers known as carbon nanotubes (CNTs) instead of rigid silicon chips -- but reliability is essential. Given that most silicon chip... » read more

Why Would IBM Sell Its Semi Group?
By Ed Sperling - 20 Feb, 2014 - Comments: 1

Rumors are always just rumors until proven otherwise in business, but in the case of IBM’s semiconductor business, hints about the sale of its semiconductor business are particularly noteworthy. Much has changed since the days when IBM—as International Business Machines—went head-to-head with AT&T’s quasi-public Bell Labs and Xerox’s Palo Alto Research Center (PARC). The breakup of... » read more

Power/Performance Bits: Feb. 18
By Ann Mutschler - 18 Feb, 2014 - Comments: 1

Outperforming copper Carbon nanotube-based fibers invented at Rice University have greater capacity to carry electrical current than copper cables of the same mass -- on a pound-per-pound basis -- according to new research. While individual nanotubes are capable of transmitting nearly 1,000 times more current than copper, the same tubes coalesced into a fiber using other technologies fail l... » read more

System Bits: Feb. 11
By Ann Mutschler - 11 Feb, 2014 - Comments: 0

Ballistic transport in graphene Using electrons more like photons could provide the foundation for a new type of electronic device that would capitalize on the ability of graphene to carry electrons with almost no resistance even at room temperature in a process known as ballistic transport, according to researchers at Georgia Tech. Ballistic transport is the process by which electrical res... » read more

Power/Performance Bits: Jan. 28
By Ann Mutschler - 28 Jan, 2014 - Comments: 0

E-whiskers From the world of nanotechnology, researchers with Berkeley Lab and UC Berkeley are on the verge of electronic whiskers -- tactile sensors from composite films of carbon nanotubes and silver nanoparticles similar to the highly sensitive whiskers of cats and rats. These new e-whiskers respond to pressure as slight as a single Pascal, which is about the amount of pressure exerted o... » read more

What’s After CMOS?
By Mark LaPedus - 24 Jan, 2014 - Comments: 3

Chipmakers continue to scale the CMOS transistor to finer geometries, but the question is for how much longer. The current thinking is that the CMOS transistor could scale at least to the 3nm node in the 2021 timeframe. And then, CMOS could run out of gas, prompting the need for a new switch technology. So what’s after the CMOS-based transistor? Carbon nanotubes and graphene get the most a... » read more

Manufacturing Bits: Jan. 21
By Mark LaPedus - 21 Jan, 2014 - Comments: 1

Redefining The Kilogram In 2011, the General Conference on Weights and Measures approved a plan to redefine the kilogram and other measurement units. The new definition for the kilogram will be based on the fixed numerical values of Planck’s constant (h), according to the National Institute of Standards and Technology (NIST), part of the U.S. Department of Commerce. NIST has taken steps t... » read more

Manufacturing Bits: Dec. 31
By Mark LaPedus - 31 Dec, 2013 - Comments: 0

Bringing Graphene Down To Earth For years, the semiconductor industry has been looking at graphene as a next-generation technology for a multitude of applications. One potential application, the graphene field-effect transistor (GFET), has been developed by various companies and universities. There are several advantages and disadvantages with GFETs. On one hand, GFETs have a higher mobilit... » read more

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