J. Miao et al., THE CHARACTERISTICS OF HIGH-RESISTANCE LAYERS PRODUCED IN N-GAAS USING MEV-NITROGEN IMPLANTATION FOR 3-DIMENSIONAL STRUCTURING, Applied physics letters, 70(7), 1997, pp. 847-849
The radiation damage introduced in n-GaAs by 4-MeV N+ implantation at
a dose of 1x10(15) cm(-)2 has been analyzed using micro-Raman spectros
copy. Implantation followed by annealing at 600 degrees C was found to
produce a strongly compensated near-surface layer possessing a high c
rystalline quality. At the same time a pronounced disorder was found u
nderneath the high-resistance layer which enables the fabrication of 2
.5-mu m thick free-standing membranes using selective electrochemical
etching techniques. (C) 1997 American Institute of Physics.