The United States IBM company research staff make carbon nanotubes on integrated circuit

America IBM company researchers announced on the 29, they developed a special technology of nano chip manufacturing, the transistor made of carbon nanotubes in integrated circuit arrangements "". This is a major breakthrough in the research of carbon nanotubes.

Researchers said the new research breakthrough in the research and development of carbon nanotubes bottleneck". The transistor made of carbon nanotubes (referred to as carbon nanotube transistors) on integrated circuit "free" distribution, make it hard to be like that of silicon chip used in the manufacture of large scale integrated circuit, the main obstacle which has also developed computer scientists of carbon nanotubes.

In an article published in the journal communications, researchers say they have developed a unique process to control the location of carbon nanotubes and to arrange them in accordance with design intent. Researchers first make use of semiconductor printing technology made of aluminum, aluminum wire can play a silicon transistor "open" and "off" the role of the gate. Then, the oxidation of aluminum wire, so that the surface of the aluminum wire with a very thin layer of alumina, so that they become carbon nanotube adsorption materials. After the solvent immersion, according to the design direction of carbon nanotubes uniformly adsorbed onto the alumina layer, researchers add palladium materials such as aluminum layer in the vertical plane, finally made a carbon nanotube transistor.

According to reports, in the silicon chip transistor close to its physical limit of performance today, single wall carbon nanotubes are considered to be the best alternative materials for future silicon chip material. Carbon nanotubes can be used in large scale integrated circuits, helping to develop ultra fast operation and low energy consumption of microprocessors. Carbon nanotubes are expected to operate at a speed of 10 times faster than the next generation of silicon chips, and less energy.

At the same time, researchers said that the breakthrough in the commercialization of technological achievements, there are still some work to be done in order to give full play to the potential of carbon nanotubes. The areas to be improved include the adsorption of carbon nanotubes on metal palladium wires, further improving the reliability of carbon nanotubes, and the reduction of costs.