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Transistor

Science

Indium gallium arsenide transistor could boost microchip performance

As there is a finite number of transistors that can be effectively packed onto a silicon chip, researchers have been searching for an alternative to silicon that would allow integrated circuit development to continue to keep pace with Moore's Law. Researchers at MIT have recently used indium gallium arsenide to create the smallest transistor ever built from a material other than silicon. The new transistor, which is said to “work well,” is just 22 nanometers long and is a metal-oxide semiconductor field-effect transistor (MOSFET), which is the kind typically used in microprocessors. Read More

Electronics

One-molecule thick material promises electronics revolution

Imagine a world where rooms are lit by their walls, clothes are smartphones and windows turn into video screens. That may seem like a bit of science fiction, but not for long. Researchers at MIT are using a two-dimensional version of molybdenum disulfide (MoS2) to build electrical circuits that may soon revolutionize consumer electronics.Read More

Science

The return of the vacuum tube?

Most people associate vacuum tubes with a time when a single computer took up several rooms and "debugging" meant removing the insects stuck in the valves, but this technology may be in for a resurgence with news that researchers at NASA and the National Nanofab Center in South Korea are working on a miniaturized "vacuum channel transistor" - a best-of-both-worlds device that could find application in space and high-radiation environments.Read More

Electronics

Biodegradable transistors created from proteins found in the human body

In a bid to develop a transistor that didn’t need to be created in a “top down” approach” as is the case with silicon-based transistors, researchers at Tel Aviv University (TAU) turned to blood, milk and mucus proteins. The result is protein-based transistors the researchers say could form the basis of a new generation of electronic devices that are both flexible and biodegradable. Read More

Good Thinking Feature

2011: A year in technology

We cast a wide net over all types of new and emerging technologies here at Gizmag.com - some save us time, some keep us connected, some help us stay healthy and some are just plain fun, but at the core of what we cover are those discoveries and innovations which have the potential to impact the fortunes of the human race as a whole and make a difference to the future of our planet. So with the calender having rolled over into another year, it's an ideal time to take a look back at some of the most significant and far-reaching breakthroughs that we saw during 2011.Read More

Science

New 3D transistors could mean faster, lighter, cooler computers

Starting next year, computers will be available with three-dimensional transistors – these will incorporate vertical components, unlike the flat chips that we’re used to seeing. This structure will allow them to have shorter gates, which are the components that allow the transistors to switch the electrical current on and off, and to direct its flow. The shorter the gate, the faster the computer can operate. While the new 3D transistors will have a gate length of 22 nanometers, as opposed to the present length of about 45, the use of silicon as a construction material limits how much shorter they could ultimately get. That’s why scientists from Purdue and Harvard universities have created prototype 3D transistors made out of indium-gallium-arsenide – the same compound recently used in a record-breaking solar cell.Read More

Electronics

World's first ultra-thin, low energy molybdenite microchip tested

Back in February, Darren Quick wrote about the unique properties of Molybdenite and how this material, previously used mostly as a lubricant, could actually outshine silicon in the construction of transistors and other electronic circuits. In brief: it's much more energy efficient than silicon, and you can slice it into strips just three atoms thick - meaning that you can make transistors as much as three times smaller than before, and make them flexible to boot. Well, the technology has now been proven with the successful testing of the world's first molybdenite microchip in Switzerland. Does this mean Lausanne will become known as "Molybdenite Valley?"Read More

Science

Squids provide active ingredient for transistor that may communicate with living systems

When it comes to sending and receiving information, man-made devices utilize negatively-charged particles commonly known as electrons. Biological systems such as human bodies, on the other hand, use protons via positively charged hydrogen atoms or ions. This would indicate that there is something of a language barrier, when we try to develop electronic devices that can communicate with living systems. That barrier could be on its way down, however, as scientists from the University of Washington have developed a transistor that can conduct pulses of protons - and they've done it with some help from our friends the cephalopods.Read More

Computers

Intel's 3-D transistors to keep pace with Moore's Law

NASA, the double-helix model, Elvis ... there's a long list of things that emerged during the 1950s which still resonate strongly in 2011, but none more so than the humble silicon transistor. Transistors are the bricks with which the shiny house of modern consumer electronics has been built, but for more than 50 years these bricks have been limited to two dimensions. Now there's a third. Intel has announced that it is putting its revolutionary Tri-Gate 3-D transistor into mass production. The first 22nm microprocessor (codenamed Ivy Bridge) to use the transistors will be rolled-out later this year, delivering huge gains in performance and efficiency compared with chips that use current 2-D planar transistors and helping keep pace with Moore's Law.Read More

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