HF Wet Etching Bench

The HF Wet Etching Bench is a dedicated station for hydrofluoric acid (HF) etching, primarily utilized for the selective removal of silicon dioxide (SiO2) layers from wafer surfaces in semiconductor and microfabrication processes. HF is highly selective to SiO2, making this bench essential for various applications, including sacrificial layer etching and surface preparation. This bench often supports the use of Buffered Oxide Etch (BOE), a mixture of HF and ammonium fluoride, which provides a more controlled etch rate and improved surface morphology. Designed with robust safety features, these benches ensure safe handling of corrosive chemicals, critical for maintaining a secure working environment.