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

Processing Techniques Equipment name & NEMO ID Teaser Blurb Cleanliness Location
Silicon Oxide Wet Etching, Wet Chemical Processing Wet Bench Clean_res-hf
wbclean_res-hf

Semi-automated wet bench for etching oxide from 3", 4", and 6" Si, SiGe, and quartz substrates using 50:1 HF, 6:1BOE, or 20:1BOE. 2 baths can hold up to 25 wafers. Part of the Clean Cleanliness Group.

Clean SNF Paul G Allen L107 Cleanroom
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

Manual wet etching of non-standard materials using only SNF approved acids or bases. Hot plate available. GaAs allowed in personal labware only.

Flexible SNF Paul G Allen L107 Cleanroom