M. Ilg et al., MODULATION-DOPED SILICATE GLASS DEPOSITED BY LOW-PRESSURE CHEMICAL-VAPOR-DEPOSITION, Superlattices and microstructures, 24(5), 1998, pp. 385-388
We demonstrate the synthesis of modulation-doped silicate glass. Secon
dary ion mass spectroscopy measurements show the B and P concentration
s to strongly oscillate on a nanometre-scale. This finding is confirme
d by scanning-electron microscopy. Finally we show that this novel typ
e of material has gap-fill characteristics superior to those of conven
tional borophosphosilicate glass currently in use in the semiconductor
industry. (C) 1998 Academic Press.