We report the fabrication of Al nanostructures using selective chemical vap
or deposition (CVD) growth and an atomic hydrogen resist. A scanning tunnel
ing microscope is used to pattern the hydrogen terminated surface by local
removal of hydrogen atoms. The high selectivity of the CVD process limits A
l growth to the uncovered regions. We demonstrate the fabrication of Al fea
tures as small as 2 nm. (C) 1999 American Institute of Physics. [S00218979(
98)02924-7].