''Two US groups have announced transistors almost 1000 times smaller than those in use today
...
Using 3-nanometre magnets, an array could store 10 terabits (roughly 270 standard DVDs) per square inch, says Russell, who is now working to perfect magnets small enough to cram 100 terabits into a square inch.
"Currently, industry is working at half a terabit [per square inch]," he says. "They wanted to be at 10 terabits in a few years' time - we have leapfrogged that target."'' [source]
And:
''Can the trend go on? Reports of the imminent death of Moore's law have been around almost as long as the law itself, and have always proved exaggerated. But now there is concrete cause for concern. The smallest features on today's state-of-the-art chips are just a few nanometres across. At the current rate of shrinking, they will reach the size of a few silicon atoms by about 2020.
At this kind of scale, the properties that make silicon the microelectronic material of choice will fail.
...
And so, even as the last drops of computing power are squeezed out of silicon, the race is on to find its successor. Bit by bit, a startling picture is emerging. Not only might natural processes hold the key to the computer's further evolution, but the ideal nanoelectronic material might also have been under our noses all along. It could well be nature's own favoured building block - carbon.
...
Currently, a lot of computing time is wasted transporting electrical signals between different parts of the chip. What if that transport role could be taken over by light? Normal silicon does not emit light, but nanoscale particles of the element can be made to. The incorporation of nanoscale silicon light emitters and absorbers would provide the same kind of leap in speed that optical fibres give over copper cables in an internet connection, and keep Moore's law going independently of the size of transistors.
...
Once the limits of silicon miniaturisation have been reached, graphene could therefore be ideally poised to take on the Moore's law mantle.
'' [source]
Saturday, February 21, 2009
A brave new world!
By at 21:35
Section: Free energy and new technologies
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