Silicon-based nanostructures formed by plasma etching through a mask formed by a focused beam of Ga+ ions
2015
A method of formation of three-dimensional silicon-based nanostructures by a mask formation with the use of focused ion beam, for following plasma etching, is presented. A surface relief pattern, with depths of less than 80 nm, dependent on a dose of interstitial ions, was formed by plasma etching of an undoped area. A range of values of a dose of Ga+ ion beam for silicon doping was determined. Three-dimensional silicon-based structures with linear dimensions of about 100 nanometers were obtained.
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