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Ammonium Fluoride (NH4F)
Ammonium Fluoride (NH4F)
Ammonium Fluoride (NH4F)

Ammonium fluoride (NH₄F) is a crucial chemical in semiconductor manufacturing, primarily used in wet etching and cleaning processes. It plays a key role in the treatment of silicon (Si) and silicon dioxide (SiO₂)

Detailed introduction

Ammonium fluoride is mixed with hydrofluoric acid (HF) in semiconductor processes to form a buffered oxide etchant (BOE). As a buffer solution, it stabilizes the concentration of hydrofluoric acid, preventing uniformity issues etching caused by excessive etching rates.

Its core value lies in its controllability and selectivity, making it essential for precise nanoscale thin-film processing in advanced semiconductor manufacturing.

  • SUNLIT can produce ppt-grade ammonium fluoride.
  • Packaging type: Tank Lorry, 200L drum, 20L pail, Gallon bottle.
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