Patent ID: 7160585

Claim:
Process for making at least one nanotube between two electrically conducting elements located on a substrate, the said process using, inside a deposition chamber, a microwave power, a magnetic field, and at least one electronic cyclotron resonance zone faciliting ionization and/or dissociation of a gas containing carbon injected into the deposition chamber, characterized in that the gas containing carbon is injected at a low pressure less than about 3×10 −3 mbars inside the deposition chamber, causing ionization and/or dissociation of this gas in each electronic cyclotron resonance zone, the ions and electrons produced being located along the field lines of the magnetic field set up in the deposition chamber, the process also comprising a screening operation of the various species produced in each electronic cyclotron resonance zone to enable exclusive access of CxHy ° non condensable free radicals produced to access a deposition zone adjacent to at least one part of the substrate comprising the said two electrically conducting elements to make the said nanotube.