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Patent Searching and Data


Title:
METHOD AND DEVICE FOR PROCESSING CARBON NANOTUBES
Document Type and Number:
WIPO Patent Application WO/2013/024644
Kind Code:
A1
Abstract:
A wafer (W) on which carbon nanotubes have been formed is placed atop a stage (3) within a treatment container (1) of an etching device (100). Plasma-generating gas is introduced from a shower ring (57) into the treatment container (1), and microwaves generated by a microwave generation unit (35) are guided to a planar antenna (33) and introduced into the treatment container (1) via a transmission plate (39). The microwaves transform the plasma-generating gas into plasma, and oxidizing gas (for example, O2 gas) or reducing gas (for example, H2 gas or NH3 gas) is introduced into the treatment container (1) and transformed into plasma at the time when the plasma is ignited. By acting on the carbon nanotubes on the wafer (W), the low-electron-temperature plasma thus formed causes etching to proceed from the distal end side toward the proximal end side in the longitudinal direction.

Inventors:
MATSUMOTO TAKASHI (JP)
AKIYAMA OSAYUKI (JP)
Application Number:
PCT/JP2012/067431
Publication Date:
February 21, 2013
Filing Date:
July 09, 2012
Export Citation:
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Assignee:
TOKYO ELECTRON LTD (JP)
MATSUMOTO TAKASHI (JP)
AKIYAMA OSAYUKI (JP)
International Classes:
C01B31/02; B82Y40/00; H01J9/02
Foreign References:
JP2011068513A2011-04-07
JP2001262343A2001-09-26
JP2009292716A2009-12-17
Attorney, Agent or Firm:
WATANABE Kazuhiro et al. (JP)
Kazuhiro Watanabe (JP)
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Claims: