P. Allongue et al., PROBING BY IN-SITU SCANNING-TUNNELING-MICROSCOPY THE INFLUENCE OF AN ORGANIC ADDITIVE ON SI ETCHING IN NAOH, Journal of vacuum science & technology. B, Microelectronics and nanometer structures processing, measurement and phenomena, 12(3), 1994, pp. 1539-1542
The etching of Si in alkaline solution is used to fabricate microstruc
tures. A recent study has described the etching reaction at a molecula
r level. The present paper studies, with in situ scanning tunneling mi
croscopy, the effect of a surfactant (triton) on Si etching and its co
nsequences regarding the resulting surface topography, which is an imp
ortant question in the preparation of substrates.