1. N. Tokoro, Part II of these Proceedings (9th Int. Conf. on Ion Implantation Technology, Gainesville, FL, USA, 1992), (North-Holland, Amsterdam, 1993).
2. N. Turner, N.R. White, J.P. O'Connor and K.H. Purser, Proc. ISIAT1987, Tokyo.
3. N. Tokoro and R.C. Becker, U.S. patent 5,162,669.
4. J.P. O'Connor and N.R. White, U.S. patent 4,980,556.
5. J.W. Smith and J.P. O'Connor, patent pending.