In the field emission die cold cathode where it is formed

摘要

Upon wet etching and thereby patterning carbon nanotubes (106) by a transfer method, a solution for dissolving a binder used in the transfer method as a solution used for the wet etching is used, and the carbon nanotubes (106) tangled with each other are rubbed off with a cloth-like substance (112) upon the wet etching. Furthermore, upon patterning the carbon nanotubes (106) using a dry etching method, a metal film or a film made of a substance resistant to damage upon the dry etching and causing no damage to the carbon nanotubes (106) when removed is used as a mask. A fine carbon nanotube pattern having an excellent flatness is formed.