Patent ID: 7608293
Filing Date: 2009-10-27
Classification: H01J

Abstract:
1. A method for manufacturing a field emission device, comprising the steps of: providing a carbon nanotube array slice preform, the carbon nanotube array slice preform comprising a matrix and a plurality of carbon nanotube segments incorporated in the matrix; placing the carbon nanotube array slice preform on a cathode substrate; heating the matrix so as to change the matrix into a liquid state; removing the liquid state matrix after the matrix becomes liquid; wherein the carbon nanotube array slice preform is made by a method comprising the steps of: providing a carbon nanotube array; immersing the carbon nanotube array into the matrix; solidifying the matrix so as to cause the carbon nanotube array to be embedded in the matrix; transversely slicing the carbon nanotube array thereby obtaining the carbon nanotube array slice preform.