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Development of boron liquid--metal--ion source

Journal Article · · J. Vac. Sci. Technol., A; (United States)
DOI:https://doi.org/10.1116/1.572410· OSTI ID:6795383
A boron liquid--metal--ion source is described that uses a combination of a glassy carbon or carbide emitter and a Ni--B base alloy as its source material. The B/sup +/ ion emission current is 25%--35% of the total emission current, and the energy spread for B/sup +/ ions is 12 eV at a total current of 30 ..mu..A. A source lifetime of more than 250 h was achieved with a total current of 30--50 ..mu..A. This source mounted on a mass-separated focusing column has led to B/sup +/ submicron beams with maximum energies of 20 keV for preliminary experiments on maskless implantation.
Research Organization:
Central Research Laboratory, Hitachi Ltd., Kokubunji, Tokyo 185, Japan
OSTI ID:
6795383
Journal Information:
J. Vac. Sci. Technol., A; (United States), Journal Name: J. Vac. Sci. Technol., A; (United States) Vol. 2:3; ISSN JVTAD
Country of Publication:
United States
Language:
English