@conference{765681, author = {David Simons and P Chi and Donald Novotny}, title = {Evidence From SIMS of Doubly-Charged Boron Contamination During Singly-Charged Ion Implantation}, year = {1991}, month = {1991-12-31 00:12:00}, publisher = {Proc., 12th International Congress for Electron Microscopy, Seattle, WA, USA}, language = {en}, }