Etchants

We offer a broad range of diluted Hydrofluoric (HF) ratios, specialty Buffered Oxide Etchants (BOE) - with/without surfactant, Mixed Acid etchants (MAE) & specialty metal etchants

  • Different grades depending on the etchant type
  • Certain products are offered with or without surfactant
  • See our Product Overview for the different Etchant types and their typical application
  • Packaging options :
    • 4 L HDPE bottle
    • 20L Jerri can
    • 200 L drum
  • Buffered Oxide Etchants
    • Fujifilm has advanced capabilities for the precise blending of Buffered Etchants with tight assay specification ranges, available in multiple NH4F:HF ratios
    • Utilized to etch SiO2 films
    • Utilized as pre-diffusion and pre-metallization surface preparations
    • Formulated from high purity 49% Hydrofluoric Acid and high purity 40% Ammonium Fluoride
    • Available with and without surfactant
  • Dilute HF
    • Fujifilm has advanced capabilities for the precise blending of dilute HF with tight assay specification ranges
  • Freckle Etch
    • For the removal of residual silicon nodules left after etching aluminum-silicon-copper layers
  • Mixed Acid Etchants
    • For the isotropic etching of silicon (mono and poly-crystalline)
  • Specialty Pad Etchants
    • Used to etch deposited pyro lytic and sputtered final passivation glasses in order to expose semiconductor bonding pads for wire bonding
    • Available with and without our OHS surfactant
  • Specialty Metal Etchants
    For the selective removal of specific metal layers Fujifilm offers various specialty etchants, including
    • Specialty Aluminum Etchants: Immersion etchants for aluminum metallization layers - Available with or without the Fujifilm Aluminum Etch Surfactant (AES)
    • Chrome Etch: a specialty blend for the patterning of Chromium layers

Contact Us for more information

See our Product Overview for the different Etchant types and their typical application