Coating processes – Coating by vapor – gas – or smoke – Carbon or carbide coating
Reexamination Certificate
2008-07-08
2008-07-08
Meeks, Timothy (Department: 1792)
Coating processes
Coating by vapor, gas, or smoke
Carbon or carbide coating
C427S248100, C427S331000, C427S255110
Reexamination Certificate
active
10614106
ABSTRACT:
This invention relates to a method and apparatus for controlling the length of a carbon nanotube, in cooperation with a substrate having at least one reference level on a surface of the substrate on which at least one carbon nanotube is formed, comprising at least one positioning platform for mounting and calibrating the substrate; a discharging electrode mounted on one side of the positioning platform to cut the carbon nanotube wherein the position of the discharging electrode can be calibrated with the positioning platform; a piezoelectric actuator for calibrating the position of the discharging electrode or the height of the discharging electrode relative to the substrate reference level; a position sensor for detection of the height of the substrate; and a voltage pulse supplying means for applying a voltage pulse to the discharging electrode to cut the carbon nanotube.
REFERENCES:
patent: 5591312 (1997-01-01), Smalley
patent: 6146227 (2000-11-01), Mancevski
patent: 6346189 (2002-02-01), Dai et al.
patent: 6719602 (2004-04-01), Nakayama et al.
Jason H. Hafner et. al.,The Journal Of Physical Chemistry B,vol. 105, No. 4, Feb. 1, 2001, pp. 743-746.
Liesbeth C. Venema et. al.,Length control of individual carbon nanotubes by nanostructuring with a scanning tunneling microscope,Appl. Phys. Lett. 71 (18), Nov. 3, 1997, pp. 2629-2631.
Chen Tsan-Lin
Shie Nang-Chian
Tai Hung-Ming
Industrial Technology Research Institute
Meeks Timothy
Stouffer Kelly M
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