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New world record for the smallest transistor (1nm)

CAPSLOCKSTUCK

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A team of scientists headed by Lawrence Berkeley National Laboratory researcher Prof. Ali Javey has used carbon nanotubes and a compound called molybdenum disulfide to create a transistor with a working 1-nm (nanometer) gate, thus setting the new world record for the smallest transistor.




"The semiconductor industry has long assumed that any gate below 5 nm wouldn't work, so anything below that was not even considered," said Sujay Desai, the lead author on the study and a graduate student in Prof. Javey's lab.

"We made the smallest transistor reported to date," Prof. Javey said.

"The gate length is considered a defining dimension of the transistor. We demonstrated a 1-nm-gate transistor, showing that with the choice of proper materials, there is a lot more room to shrink our electronics," he added.

"By changing the material from silicon to molybdenum disulfide (MoS2), we can make a transistor with a gate that is just 1 nm in length, and operate it like a switch."

Molybdenum disulfide can also be scaled down to atomically thin sheets, about 0.65 nm thick, with a lower dielectric constant, a measure reflecting the ability of a material to store energy in an electric field.

Making a 1-nm structure, it turns out, is no small feat. Conventional lithography techniques don't work well at that scale, so the team turned to carbon nanotubes, hollow cylindrical tubes with diameters as small as 1 nm.


NOTE
Turning these nanotube transistors into a processor would require billions of the switches to be reliably created on a single chip. That may be possible, but it could also be cripplingly expensive.



http://arstechnica.co.uk/science/20...cally-thin-material-smallest-transistor-ever/
 

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I've been seeing a lot of articles on using carbon nanotubes for transistors and it's probably several years off from being feasible for consumer applications but scientists are working on it.

http://www.tomshardware.com/news/carbon-nanotube-transistor-cpu-fet,32638.html




It shows a lot of promise if the kinks can get worked out.

From the article: "The speed of a single nanotube is five times faster than a silicon transistor, but surrounding structures, such as performance-killing interconnects, might slow them down."
 

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That Toms link is excellent reading......thanks.
 
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Great news everyone: missleading threadname(gate size not the whole thing), cant seem too find how well it clocks with LN2.
 

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Great news everyone: missleading threadname(gate size not the whole thing), cant seem too find how well it clocks with LN2.


Im not sure you've got your words in the right order.
 
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Well shit.. that's impressive.

 
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Well, IBM created 50GHz CPU's like 15 years ago and we're still at only 4GHz for the most part. It's nice but doesn't really tell us much...
 
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Time to overclock it.
 
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