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In this technical note we share our experience etching SiO2 in SiO2/Si wafers without using hydrofluoric acid (HF). We have been using glass etching cream (in particular Armour Etch) which relaxes the safety when performing this etching process substantially.
glass etching cream, clean room, micro-fabrication, Armour Etch, silicon oxide etching
glass etching cream, clean room, micro-fabrication, Armour Etch, silicon oxide etching
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