Mixtures of diluted hydrofluoric acid are typically used to etch silicon oxides.

Processing Technique Equipment name & NEMO ID Cleanliness Chemicals Primary Materials Etched Other Materials Etched Substrate Size Notes Stylus Tip Radius
Silicon Oxide Wet Etching, Wet Chemical Processing Wet Bench Clean_res-hf
wbclean_res-hf
Clean

Resist as mask allowed

Decontamination, Metal Clean, Piranha Cleaning, Wet Resist Removal, Acid or Base Wet Etching, Aluminum and Titanium and Tungsten Wet Etching, Silicon Wet Etching, Silicon Oxide Wet Etching, Wet Chemical Processing Wet Bench Flexcorr 1
wbflexcorr-1
Flexible

Manual wet etching of non-standard materials. Hot plate available. GaAs allowed in personal labware only.