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Transistors made from single electrons

Using a vibrating arm less than one-millionth of an inch long and one-thousand times thinner than a human hair, a new transistor toggles on and off through the movement of a single electron.

The infinitesimal size and low power requirements of this single electron transistor (SET), created by UW-Madison engineering professor Robert Blick and physicist Dominik Scheible of Ludwig-Maximilian......

Full article >>> e is represented by just a single electron. Since it uses so many fewer electrons, his transistor will generate much less heat and require less power to move the electrons around - a feature very important in battery-powered mobile devices, such as cell phones.

Blick and Scheible's transistor consists of a minuscule vibrating arm topped by a gold tip, or island. The island nestles between......

Full article >>> nly a lithography step followed by dry etching.

"It was the beauty and simplicity of the new design that convinced us of the merit of the mechanical approach," says Blick. "And then, of course, we were sort of mad at ourselves that we didn't think of it before."

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Madeline Fisher from WARF can be contacted at mmfisher@warf.ws.......

Full article >>>
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Source:wistechnology.com By Madeline Fisher 09/29/04


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