TITLE

Formation and thermal stability of sub-10-nm carbon templates on Si(100)

AUTHOR(S)
Guise, Olivier; Ahner, Joachim; Yates, John; Levy, Jeremy
PUB. DATE
September 2004
SOURCE
Applied Physics Letters;9/20/2004, Vol. 85 Issue 12, p2352
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report a lithographic process for creating high-resolution (<10 nm) carbon templates on Si(100). A scanning electron microscope, operating under low vacuum (10-6 mbar), produces a carbon-containing deposit (‘contamination resist’) on the silicon surface via electron-stimulated dissociation of ambient hydrocarbons, water, and other adsorbed molecules. Subsequent annealing at temperatures up to 1320 K in ultrahigh vacuum removes SiO2 and other contaminants, with no observable change in dot shape. The annealed structures are compatible with subsequent growth of semiconductors and complex oxides. Carbon dots with diameter as low as 3.5 nm are obtained with a 200 μs electron-beam exposure time.
ACCESSION #
14546668

 

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