Method for manufacturing field emission cathode
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United States of America Patent
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May 21, 2013
Grant Date -
Apr 21, 2011
app pub date -
Dec 22, 2010
filing date -
Jul 19, 2006
priority date (Note) -
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Abstract
A method for manufacturing a field emission cathode is provided. A carbon nanotube array formed on a substrate in a container and a prepolymer are provided. The prepolymer is put into the container settled for a period of over 30 minutes to fill in clearances of the carbon nanotube array, and part of the prepolymer is covering a top end of the carbon nanotube array. The carbon nanotube array is rotated at a speed to push the part of the prepolymer into the clearances of the carbon nanotube array and a prepolymer film in the carbon nanotube array is obtained. The prepolymer film is then polymerized to form a polymer film.
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