30 Jun '16, 7pm

competition

competition

We found that we could tackle the metallic nanotubes with a similar mix of processing and design. In 2001, an IBM team showed that, with sufficient voltage, it’s possible to destroy metallic carbon nanotubes by burning them away. We adapted this technique to operate across an entire integrated circuit at once, by building temporary wiring that effectively turns a whole chip into one giant transistor. After the circuits are made, we apply a voltage to the gates of the transistors to turn off all the semiconducting carbon nanotubes. Then we apply a voltage across each source and drain region. Because the semiconducting carbon nanotubes have already been turned off, only the metallic nanotubes in the channels will conduct electricity. With a sufficiently strong voltage pulse, even the relatively low resistance of these bad nanotubes will create a brief heat spike that fries t...

Full article: http://spectrum.ieee.org/semiconductors/devices/how-well-...

Tweets

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pv-tech.org 01 Jul '16, 10am

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#Virginia will improve #energy efficiency, cut carbon #emissions from #powerplants in E.O. 57

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usgbc.org 30 Jun '16, 7pm

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