The first CNT transistors were built in the late 1990?s but since then we’ve made little progress in creating chips with billions of those transistors packed densely and — above all — affordably. IBM has already demonstrated the ability to create processors with about 10,000 transistors, but that’s still a long, long way off what we’ll need. The manufacturing process they’ve chosen for this project sees units of six CNTs acting as each transistor. They’re about 30 nanometers long and 1.4 wide, spaced eight nanometers apart — given their calculations, a CNT processor could be six times faster than a modern silicon chip for the same power draw.
CNTs 2It’s unclear whether IBM has made a specific breakthrough that led it to this announcement or just a general feeling of progress and meaningful forward movement. Either way, the company is upfront about the fact that if CNT computers don’t manage to make some sort of move by around the year 2020, the window of opportunity may close. Potentially competing technologies are also under development, from quantum computers to optical computers and beyond, and their potential to increase computational power is far greater than CNTs.
IBM: Carbon nanotubes may restore Moore's Law by 2020
Posted on Monday, Jul 07 2014 @ 13:07 CEST by Thomas De Maesschalck