Patent ID: 7641938
Filing Date: 2010-01-05
Classification: B82Y,C08K,H01L,Y10T

Abstract:
1. A method for manufacturing a carbon nanotube composite material, comprising the steps of: providing a substrate, the substrate having a surface; forming a catalyst film on the surface of the substrate, the catalyst film including a first portion having a first shape and a second portion having a second shape different from the first shape, the first portion being spaced from the second portion; forming a first carbon nanotube array on the first portion of the catalyst film to obtain the first carbon nanotube array having the first shape and a second carbon nanotube array on the second portion of the catalyst film to obtain the second carbon nanotube array having the second shape, the first and second carbon nanotube arrays defining a top end portion and a bottom end portion, the bottom end portion being attached to the substrate, the first and second carbon nanotube arrays having a plurality of clearances among neighboring carbon nanotubes of the first and second carbon nanotube arrays; attaching a protective layer on the top end portion of the first and second carbon nanotube arrays; filling clearances among the carbon nanotubes with a matrix material; and removing the first protective layer and the substrate from the first and second carbon nanotube arrays so as to expose the top end portion and the bottom end portion of the first and second carbon nanotube arrays.