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New chip-cooling technology.

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Researchers have demonstrated a new technology that may dramatically improve computer chip cooling, possibly addressing a looming threat to future advances in computers and electronics. Purdue University researchers have shown that the technology increased the heat-transfer coefficient, which describes the cooling rate, by as much as 250 percent. The experimental cooling device, fabricated on top of a mock computer chip, works by generating ions using negatively charged cathodes and a positively charged anode positioned above the cathodes. When voltage was passed through the device, the cathodes discharged electrons toward the anode. Along the way, the electrons collided with air molecules, producing positively charged ions, which were then attracted back toward the negatively charged electrodes, creating "ionic wind."
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Title Annotation:News Watch
Publication:Scientific Computing
Article Type:Brief article
Geographic Code:1USA
Date:Nov 1, 2007
Words:119
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